X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/5285f69a8aa41eff217734f1d4051b7cc75428e5..bcf066ff9c42c7b868de15e2ae251986ab19fe61:/test/controllers/api/changesets_controller_test.rb

diff --git a/test/controllers/api/changesets_controller_test.rb b/test/controllers/api/changesets_controller_test.rb
index cfb424169..1d92263f9 100644
--- a/test/controllers/api/changesets_controller_test.rb
+++ b/test/controllers/api/changesets_controller_test.rb
@@ -6,7 +6,15 @@ module Api
     # test all routes which lead to this controller
     def test_routes
       assert_routing(
-        { :path => "/api/0.6/changeset/create", :method => :put },
+        { :path => "/api/0.6/changesets", :method => :get },
+        { :controller => "api/changesets", :action => "index" }
+      )
+      assert_routing(
+        { :path => "/api/0.6/changesets.json", :method => :get },
+        { :controller => "api/changesets", :action => "index", :format => "json" }
+      )
+      assert_routing(
+        { :path => "/api/0.6/changesets", :method => :post },
         { :controller => "api/changesets", :action => "create" }
       )
       assert_routing(
@@ -49,35 +57,275 @@ module Api
         { :path => "/api/0.6/changeset/1/close", :method => :put },
         { :controller => "api/changesets", :action => "close", :id => "1" }
       )
-      assert_routing(
-        { :path => "/api/0.6/changesets", :method => :get },
-        { :controller => "api/changesets", :action => "index" }
-      )
-      assert_routing(
-        { :path => "/api/0.6/changesets.json", :method => :get },
-        { :controller => "api/changesets", :action => "index", :format => "json" }
+
+      assert_recognizes(
+        { :controller => "api/changesets", :action => "create" },
+        { :path => "/api/0.6/changeset/create", :method => :put }
       )
     end
 
+    ##
+    # test the query functionality of changesets
+    def test_index
+      private_user = create(:user, :data_public => false)
+      private_user_changeset = create(:changeset, :user => private_user)
+      private_user_closed_changeset = create(:changeset, :closed, :user => private_user)
+      user = create(:user)
+      changeset = create(:changeset, :user => user)
+      closed_changeset = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 1, 1, 0, 0, 0), :closed_at => Time.utc(2008, 1, 2, 0, 0, 0))
+      changeset2 = create(:changeset, :min_lat => (5 * GeoRecord::SCALE).round, :min_lon => (5 * GeoRecord::SCALE).round, :max_lat => (15 * GeoRecord::SCALE).round, :max_lon => (15 * GeoRecord::SCALE).round)
+      changeset3 = create(:changeset, :min_lat => (4.5 * GeoRecord::SCALE).round, :min_lon => (4.5 * GeoRecord::SCALE).round, :max_lat => (5 * GeoRecord::SCALE).round, :max_lon => (5 * GeoRecord::SCALE).round)
+
+      get changesets_path(:bbox => "-10,-10, 10, 10")
+      assert_response :success, "can't get changesets in bbox"
+      assert_changesets_in_order [changeset3, changeset2]
+
+      get changesets_path(:bbox => "4.5,4.5,4.6,4.6")
+      assert_response :success, "can't get changesets in bbox"
+      assert_changesets_in_order [changeset3]
+
+      # not found when looking for changesets of non-existing users
+      get changesets_path(:user => User.maximum(:id) + 1)
+      assert_response :not_found
+      assert_equal "text/plain", @response.media_type
+      get changesets_path(:display_name => " ")
+      assert_response :not_found
+      assert_equal "text/plain", @response.media_type
+
+      # can't get changesets of user 1 without authenticating
+      get changesets_path(:user => private_user.id)
+      assert_response :not_found, "shouldn't be able to get changesets by non-public user (ID)"
+      get changesets_path(:display_name => private_user.display_name)
+      assert_response :not_found, "shouldn't be able to get changesets by non-public user (name)"
+
+      # but this should work
+      auth_header = bearer_authorization_header private_user
+      get changesets_path(:user => private_user.id), :headers => auth_header
+      assert_response :success, "can't get changesets by user ID"
+      assert_changesets_in_order [private_user_changeset, private_user_closed_changeset]
+
+      get changesets_path(:display_name => private_user.display_name), :headers => auth_header
+      assert_response :success, "can't get changesets by user name"
+      assert_changesets_in_order [private_user_changeset, private_user_closed_changeset]
+
+      # test json endpoint
+      get changesets_path(:display_name => private_user.display_name), :headers => auth_header, :params => { :format => "json" }
+      assert_response :success, "can't get changesets by user name"
+
+      js = ActiveSupport::JSON.decode(@response.body)
+      assert_not_nil js
+
+      assert_equal Settings.api_version, js["version"]
+      assert_equal Settings.generator, js["generator"]
+      assert_equal 2, js["changesets"].count
+
+      # check that the correct error is given when we provide both UID and name
+      get changesets_path(:user => private_user.id,
+                          :display_name => private_user.display_name), :headers => auth_header
+      assert_response :bad_request, "should be a bad request to have both ID and name specified"
+
+      get changesets_path(:user => private_user.id, :open => true), :headers => auth_header
+      assert_response :success, "can't get changesets by user and open"
+      assert_changesets_in_order [private_user_changeset]
+
+      get changesets_path(:time => "2007-12-31"), :headers => auth_header
+      assert_response :success, "can't get changesets by time-since"
+      assert_changesets_in_order [changeset3, changeset2, changeset, private_user_changeset, private_user_closed_changeset, closed_changeset]
+
+      get changesets_path(:time => "2008-01-01T12:34Z"), :headers => auth_header
+      assert_response :success, "can't get changesets by time-since with hour"
+      assert_changesets_in_order [changeset3, changeset2, changeset, private_user_changeset, private_user_closed_changeset, closed_changeset]
+
+      get changesets_path(:time => "2007-12-31T23:59Z,2008-01-02T00:01Z"), :headers => auth_header
+      assert_response :success, "can't get changesets by time-range"
+      assert_changesets_in_order [closed_changeset]
+
+      get changesets_path(:open => "true"), :headers => auth_header
+      assert_response :success, "can't get changesets by open-ness"
+      assert_changesets_in_order [changeset3, changeset2, changeset, private_user_changeset]
+
+      get changesets_path(:closed => "true"), :headers => auth_header
+      assert_response :success, "can't get changesets by closed-ness"
+      assert_changesets_in_order [private_user_closed_changeset, closed_changeset]
+
+      get changesets_path(:closed => "true", :user => private_user.id), :headers => auth_header
+      assert_response :success, "can't get changesets by closed-ness and user"
+      assert_changesets_in_order [private_user_closed_changeset]
+
+      get changesets_path(:closed => "true", :user => user.id), :headers => auth_header
+      assert_response :success, "can't get changesets by closed-ness and user"
+      assert_changesets_in_order [closed_changeset]
+
+      get changesets_path(:changesets => "#{private_user_changeset.id},#{changeset.id},#{closed_changeset.id}"), :headers => auth_header
+      assert_response :success, "can't get changesets by id (as comma-separated string)"
+      assert_changesets_in_order [changeset, private_user_changeset, closed_changeset]
+
+      get changesets_path(:changesets => ""), :headers => auth_header
+      assert_response :bad_request, "should be a bad request since changesets is empty"
+    end
+
+    ##
+    # test the query functionality of changesets with the limit parameter
+    def test_index_limit
+      user = create(:user)
+      changeset1 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 1, 1, 0, 0, 0), :closed_at => Time.utc(2008, 1, 2, 0, 0, 0))
+      changeset2 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 2, 1, 0, 0, 0), :closed_at => Time.utc(2008, 2, 2, 0, 0, 0))
+      changeset3 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 3, 1, 0, 0, 0), :closed_at => Time.utc(2008, 3, 2, 0, 0, 0))
+      changeset4 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 4, 1, 0, 0, 0), :closed_at => Time.utc(2008, 4, 2, 0, 0, 0))
+      changeset5 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 5, 1, 0, 0, 0), :closed_at => Time.utc(2008, 5, 2, 0, 0, 0))
+
+      get changesets_path
+      assert_response :success
+      assert_changesets_in_order [changeset5, changeset4, changeset3, changeset2, changeset1]
+
+      get changesets_path(:limit => "3")
+      assert_response :success
+      assert_changesets_in_order [changeset5, changeset4, changeset3]
+
+      get changesets_path(:limit => "0")
+      assert_response :bad_request
+
+      get changesets_path(:limit => Settings.max_changeset_query_limit)
+      assert_response :success
+      assert_changesets_in_order [changeset5, changeset4, changeset3, changeset2, changeset1]
+
+      get changesets_path(:limit => Settings.max_changeset_query_limit + 1)
+      assert_response :bad_request
+    end
+
+    ##
+    # test the query functionality of sequential changesets with order and time parameters
+    def test_index_order
+      user = create(:user)
+      changeset1 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 1, 1, 0, 0, 0), :closed_at => Time.utc(2008, 1, 2, 0, 0, 0))
+      changeset2 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 2, 1, 0, 0, 0), :closed_at => Time.utc(2008, 2, 2, 0, 0, 0))
+      changeset3 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 3, 1, 0, 0, 0), :closed_at => Time.utc(2008, 3, 2, 0, 0, 0))
+      changeset4 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 4, 1, 0, 0, 0), :closed_at => Time.utc(2008, 4, 2, 0, 0, 0))
+      changeset5 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 5, 1, 0, 0, 0), :closed_at => Time.utc(2008, 5, 2, 0, 0, 0))
+      changeset6 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 6, 1, 0, 0, 0), :closed_at => Time.utc(2008, 6, 2, 0, 0, 0))
+
+      get changesets_path
+      assert_response :success
+      assert_changesets_in_order [changeset6, changeset5, changeset4, changeset3, changeset2, changeset1]
+
+      get changesets_path(:order => "oldest")
+      assert_response :success
+      assert_changesets_in_order [changeset1, changeset2, changeset3, changeset4, changeset5, changeset6]
+
+      [
+        # lower time bound at the opening time of a changeset
+        ["2008-02-01T00:00:00Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3, changeset2], [changeset5, changeset4, changeset3, changeset2]],
+        # lower time bound in the middle of a changeset
+        ["2008-02-01T12:00:00Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3, changeset2], [changeset5, changeset4, changeset3]],
+        # lower time bound at the closing time of a changeset
+        ["2008-02-02T00:00:00Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3, changeset2], [changeset5, changeset4, changeset3]],
+        # lower time bound after the closing time of a changeset
+        ["2008-02-02T00:00:01Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3], [changeset5, changeset4, changeset3]],
+        # upper time bound in the middle of a changeset
+        ["2007-09-09T12:00:00Z", "2008-04-01T12:00:00Z", [changeset4, changeset3, changeset2, changeset1], [changeset4, changeset3, changeset2, changeset1]],
+        # empty range
+        ["2009-02-02T00:00:01Z", "2018-05-15T00:00:00Z", [], []]
+      ].each do |from, to, interval_changesets, point_changesets|
+        get changesets_path(:time => "#{from},#{to}")
+        assert_response :success
+        assert_changesets_in_order interval_changesets
+
+        get changesets_path(:from => from, :to => to)
+        assert_response :success
+        assert_changesets_in_order point_changesets
+
+        get changesets_path(:from => from, :to => to, :order => "oldest")
+        assert_response :success
+        assert_changesets_in_order point_changesets.reverse
+      end
+    end
+
+    ##
+    # test the query functionality of overlapping changesets with order and time parameters
+    def test_index_order_overlapping
+      user = create(:user)
+      changeset1 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 4, 17, 0, 0), :closed_at => Time.utc(2015, 6, 4, 17, 0, 0))
+      changeset2 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 4, 16, 0, 0), :closed_at => Time.utc(2015, 6, 4, 18, 0, 0))
+      changeset3 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 4, 14, 0, 0), :closed_at => Time.utc(2015, 6, 4, 20, 0, 0))
+      changeset4 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 3, 23, 0, 0), :closed_at => Time.utc(2015, 6, 4, 23, 0, 0))
+      create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 2, 23, 0, 0), :closed_at => Time.utc(2015, 6, 3, 23, 0, 0))
+
+      get changesets_path(:time => "2015-06-04T00:00:00Z")
+      assert_response :success
+      assert_changesets_in_order [changeset1, changeset2, changeset3, changeset4]
+
+      get changesets_path(:from => "2015-06-04T00:00:00Z")
+      assert_response :success
+      assert_changesets_in_order [changeset1, changeset2, changeset3]
+
+      get changesets_path(:from => "2015-06-04T00:00:00Z", :order => "oldest")
+      assert_response :success
+      assert_changesets_in_order [changeset3, changeset2, changeset1]
+
+      get changesets_path(:time => "2015-06-04T16:00:00Z,2015-06-04T17:30:00Z")
+      assert_response :success
+      assert_changesets_in_order [changeset1, changeset2, changeset3, changeset4]
+
+      get changesets_path(:from => "2015-06-04T16:00:00Z", :to => "2015-06-04T17:30:00Z")
+      assert_response :success
+      assert_changesets_in_order [changeset1, changeset2]
+
+      get changesets_path(:from => "2015-06-04T16:00:00Z", :to => "2015-06-04T17:30:00Z", :order => "oldest")
+      assert_response :success
+      assert_changesets_in_order [changeset2, changeset1]
+    end
+
+    ##
+    # check that errors are returned if garbage is inserted
+    # into query strings
+    def test_index_invalid
+      ["abracadabra!",
+       "1,2,3,F",
+       ";drop table users;"].each do |bbox|
+        get changesets_path(:bbox => bbox)
+        assert_response :bad_request, "'#{bbox}' isn't a bbox"
+      end
+
+      ["now()",
+       "00-00-00",
+       ";drop table users;",
+       ",",
+       "-,-"].each do |time|
+        get changesets_path(:time => time)
+        assert_response :bad_request, "'#{time}' isn't a valid time range"
+      end
+
+      ["me",
+       "foobar",
+       "-1",
+       "0"].each do |uid|
+        get changesets_path(:user => uid)
+        assert_response :bad_request, "'#{uid}' isn't a valid user ID"
+      end
+
+      get changesets_path(:order => "oldest", :time => "2008-01-01T00:00Z,2018-01-01T00:00Z")
+      assert_response :bad_request, "cannot use order=oldest with time"
+    end
+
     # -----------------------
     # Test simple changeset creation
     # -----------------------
 
     def test_create
-      auth_header = basic_authorization_header create(:user, :data_public => false).email, "test"
+      auth_header = bearer_authorization_header create(:user, :data_public => false)
       # Create the first user's changeset
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_require_public_data
 
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
       # Create the first user's changeset
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
 
       assert_response :success, "Creation of changeset did not return success status"
       newid = @response.body.to_i
@@ -99,49 +347,57 @@ module Api
     end
 
     def test_create_invalid
-      auth_header = basic_authorization_header create(:user, :data_public => false).email, "test"
+      auth_header = bearer_authorization_header create(:user, :data_public => false)
       xml = "<osm><changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_require_public_data
 
       ## Try the public user
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
       xml = "<osm><changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :bad_request, "creating a invalid changeset should fail"
     end
 
     def test_create_invalid_no_content
       ## First check with no auth
-      put changeset_create_path
+      post api_changesets_path
       assert_response :unauthorized, "shouldn't be able to create a changeset with no auth"
 
       ## Now try to with a non-public user
-      auth_header = basic_authorization_header create(:user, :data_public => false).email, "test"
-      put changeset_create_path, :headers => auth_header
+      auth_header = bearer_authorization_header create(:user, :data_public => false)
+      post api_changesets_path, :headers => auth_header
       assert_require_public_data
 
       ## Try an inactive user
-      auth_header = basic_authorization_header create(:user, :pending).email, "test"
-      put changeset_create_path, :headers => auth_header
+      auth_header = bearer_authorization_header create(:user, :pending)
+      post api_changesets_path, :headers => auth_header
       assert_inactive_user
 
       ## Now try to use a normal user
-      auth_header = basic_authorization_header create(:user).email, "test"
-      put changeset_create_path, :headers => auth_header
+      auth_header = bearer_authorization_header
+      post api_changesets_path, :headers => auth_header
       assert_response :bad_request, "creating a changeset with no content should fail"
     end
 
     def test_create_wrong_method
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
-      get changeset_create_path, :headers => auth_header
+      put api_changesets_path, :headers => auth_header
       assert_response :not_found
       assert_template "rescues/routing_error"
+    end
 
-      post changeset_create_path, :headers => auth_header
-      assert_response :not_found
-      assert_template "rescues/routing_error"
+    def test_create_legacy_path
+      auth_header = bearer_authorization_header
+      xml = "<osm><changeset></changeset></osm>"
+
+      assert_difference "Changeset.count", 1 do
+        put "/api/0.6/changeset/create", :params => xml, :headers => auth_header
+      end
+
+      assert_response :success, "Creation of changeset did not return success status"
+      assert_equal Changeset.last.id, @response.body.to_i
     end
 
     ##
@@ -153,17 +409,19 @@ module Api
       get changeset_show_path(changeset)
       assert_response :success, "cannot get first changeset"
 
-      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_single_changeset changeset
-      assert_select "osm>changeset>discussion", 0
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+      assert_single_changeset changeset do
+        assert_dom "> discussion", 0
+      end
 
       get changeset_show_path(changeset), :params => { :include_discussion => true }
       assert_response :success, "cannot get first changeset with comments"
 
-      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_single_changeset changeset
-      assert_select "osm>changeset>discussion", 1
-      assert_select "osm>changeset>discussion>comment", 0
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+      assert_single_changeset changeset do
+        assert_dom "> discussion", 1
+        assert_dom "> discussion > comment", 0
+      end
     end
 
     def test_show_comments
@@ -174,63 +432,93 @@ module Api
       get changeset_show_path(changeset), :params => { :include_discussion => true }
       assert_response :success, "cannot get closed changeset with comments"
 
-      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_single_changeset changeset
-      assert_select "osm>changeset>discussion", 1
-      assert_select "osm>changeset>discussion>comment", 3
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@id", comment1.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@visible", "true"
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@id", comment2.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@visible", "true"
-      assert_select "osm>changeset>discussion>comment:nth-child(3)>@id", comment3.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(3)>@visible", "true"
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1 do
+        assert_single_changeset changeset do
+          assert_dom "> discussion", 1 do
+            assert_dom "> comment", 3 do |dom_comments|
+              assert_dom dom_comments[0], "> @id", comment1.id.to_s
+              assert_dom dom_comments[0], "> @visible", "true"
+              assert_dom dom_comments[1], "> @id", comment2.id.to_s
+              assert_dom dom_comments[1], "> @visible", "true"
+              assert_dom dom_comments[2], "> @id", comment3.id.to_s
+              assert_dom dom_comments[2], "> @visible", "true"
+            end
+          end
+        end
+      end
 
       # one hidden comment not included because not asked for
       comment2.update(:visible => false)
+      changeset.reload
 
       get changeset_show_path(changeset), :params => { :include_discussion => true }
       assert_response :success, "cannot get closed changeset with comments"
 
-      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_single_changeset changeset
-      assert_select "osm>changeset>discussion", 1
-      assert_select "osm>changeset>discussion>comment", 2
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@id", comment1.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@visible", "true"
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@id", comment3.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@visible", "true"
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+      assert_single_changeset changeset do
+        assert_dom "> discussion", 1 do
+          assert_dom "> comment", 2 do |dom_comments|
+            assert_dom dom_comments[0], "> @id", comment1.id.to_s
+            assert_dom dom_comments[0], "> @visible", "true"
+            assert_dom dom_comments[1], "> @id", comment3.id.to_s
+            assert_dom dom_comments[1], "> @visible", "true"
+          end
+        end
+      end
 
       # one hidden comment not included because no permissions
       get changeset_show_path(changeset), :params => { :include_discussion => true, :show_hidden_comments => true }
       assert_response :success, "cannot get closed changeset with comments"
 
-      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_single_changeset changeset
-      assert_select "osm>changeset>discussion", 1
-      assert_select "osm>changeset>discussion>comment", 2
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@id", comment1.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@visible", "true"
-      # maybe will show an empty comment element with visible=false in the future
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@id", comment3.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@visible", "true"
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+      assert_single_changeset changeset do
+        assert_dom "> discussion", 1 do
+          assert_dom "> comment", 2 do |dom_comments|
+            assert_dom dom_comments[0], "> @id", comment1.id.to_s
+            assert_dom dom_comments[0], "> @visible", "true"
+            # maybe will show an empty comment element with visible=false in the future
+            assert_dom dom_comments[1], "> @id", comment3.id.to_s
+            assert_dom dom_comments[1], "> @visible", "true"
+          end
+        end
+      end
 
       # one hidden comment shown to moderators
       moderator_user = create(:moderator_user)
-      auth_header = basic_authorization_header moderator_user.email, "test"
+      auth_header = bearer_authorization_header moderator_user
       get changeset_show_path(changeset), :params => { :include_discussion => true, :show_hidden_comments => true },
                                           :headers => auth_header
       assert_response :success, "cannot get closed changeset with comments"
 
-      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_single_changeset changeset
-      assert_select "osm>changeset>discussion", 1
-      assert_select "osm>changeset>discussion>comment", 3
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@id", comment1.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(1)>@visible", "true"
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@id", comment2.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(2)>@visible", "false"
-      assert_select "osm>changeset>discussion>comment:nth-child(3)>@id", comment3.id.to_s
-      assert_select "osm>changeset>discussion>comment:nth-child(3)>@visible", "true"
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+      assert_single_changeset changeset do
+        assert_dom "> discussion", 1 do
+          assert_dom "> comment", 3 do |dom_comments|
+            assert_dom dom_comments[0], "> @id", comment1.id.to_s
+            assert_dom dom_comments[0], "> @visible", "true"
+            assert_dom dom_comments[1], "> @id", comment2.id.to_s
+            assert_dom dom_comments[1], "> @visible", "false"
+            assert_dom dom_comments[2], "> @id", comment3.id.to_s
+            assert_dom dom_comments[2], "> @visible", "true"
+          end
+        end
+      end
+    end
+
+    def test_show_tags
+      changeset = create(:changeset, :closed)
+      create(:changeset_tag, :changeset => changeset, :k => "created_by", :v => "JOSM/1.5 (18364)")
+      create(:changeset_tag, :changeset => changeset, :k => "comment", :v => "changeset comment")
+
+      get changeset_show_path(changeset)
+
+      assert_response :success
+      assert_dom "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
+      assert_single_changeset changeset do
+        assert_dom "> tag", 2
+        assert_dom "> tag[k='created_by'][v='JOSM/1.5 (18364)']", 1
+        assert_dom "> tag[k='comment'][v='changeset comment']", 1
+      end
     end
 
     def test_show_json
@@ -289,6 +577,7 @@ module Api
 
       # one hidden comment not included because not asked for
       comment1.update(:visible => false)
+      changeset.reload
 
       get changeset_show_path(changeset), :params => { :format => "json", :include_discussion => true }
       assert_response :success, "cannot get closed changeset with comments"
@@ -322,7 +611,7 @@ module Api
 
       # one hidden comment shown to moderators
       moderator_user = create(:moderator_user)
-      auth_header = basic_authorization_header moderator_user.email, "test"
+      auth_header = bearer_authorization_header moderator_user
       get changeset_show_path(changeset), :params => { :format => "json", :include_discussion => true, :show_hidden_comments => true },
                                           :headers => auth_header
       assert_response :success, "cannot get closed changeset with comments"
@@ -341,39 +630,22 @@ module Api
       assert js["changeset"]["comments"][2]["visible"]
     end
 
-    def test_show_tag_and_discussion_json
+    def test_show_tags_json
       changeset = create(:changeset, :closed)
+      create(:changeset_tag, :changeset => changeset, :k => "created_by", :v => "JOSM/1.5 (18364)")
+      create(:changeset_tag, :changeset => changeset, :k => "comment", :v => "changeset comment")
 
-      tag1 = ChangesetTag.new
-      tag1.changeset_id = changeset.id
-      tag1.k = "created_by"
-      tag1.v = "JOSM/1.5 (18364)"
-
-      tag2 = ChangesetTag.new
-      tag2.changeset_id = changeset.id
-      tag2.k = "comment"
-      tag2.v = "changeset comment"
-
-      changeset.changeset_tags = [tag1, tag2]
-
-      create_list(:changeset_comment, 3, :changeset_id => changeset.id)
-
-      get changeset_show_path(changeset), :params => { :format => "json", :include_discussion => true }
-      assert_response :success, "cannot get closed changeset with comments"
+      get changeset_show_path(changeset, :format => "json")
 
+      assert_response :success
       js = ActiveSupport::JSON.decode(@response.body)
-
       assert_not_nil js
       assert_equal Settings.api_version, js["version"]
       assert_equal Settings.generator, js["generator"]
       assert_single_changeset_json changeset, js
       assert_equal 2, js["changeset"]["tags"].count
-      assert_equal 3, js["changeset"]["comments"].count
-      assert_equal 3, js["changeset"]["comments_count"]
-      assert_equal 0, js["changeset"]["changes_count"]
-      assert_not_nil js["changeset"]["comments"][0]["uid"]
-      assert_not_nil js["changeset"]["comments"][0]["user"]
-      assert_not_nil js["changeset"]["comments"][0]["text"]
+      assert_equal "JOSM/1.5 (18364)", js["changeset"]["tags"]["created_by"]
+      assert_equal "changeset comment", js["changeset"]["tags"]["comment"]
     end
 
     def test_show_bbox_json
@@ -416,12 +688,12 @@ module Api
       assert_response :unauthorized
 
       ## Try using the non-public user
-      auth_header = basic_authorization_header private_user.email, "test"
+      auth_header = bearer_authorization_header private_user
       put changeset_close_path(private_changeset), :headers => auth_header
       assert_require_public_data
 
       ## The try with the public user
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       cs_id = changeset.id
       put changeset_close_path(cs_id), :headers => auth_header
@@ -439,7 +711,7 @@ module Api
       user = create(:user)
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       put changeset_close_path(changeset), :headers => auth_header
       assert_response :conflict
@@ -452,7 +724,7 @@ module Api
       user = create(:user)
       changeset = create(:changeset, :user => user)
 
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       get changeset_close_path(changeset), :headers => auth_header
       assert_response :not_found
@@ -477,7 +749,7 @@ module Api
       end
 
       # Now try with auth
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
       cs_ids.each do |id|
         put changeset_close_path(id), :headers => auth_header
         assert_response :not_found, "The changeset #{id} doesn't exist, so can't be closed"
@@ -534,7 +806,7 @@ module Api
                       "shouldn't be able to upload a simple valid diff to changeset: #{@response.body}"
 
       ## Now try with a private user
-      auth_header = basic_authorization_header private_user.email, "test"
+      auth_header = bearer_authorization_header private_user
       changeset_id = private_changeset.id
 
       # simple diff to change a node, way and relation by removing
@@ -563,7 +835,7 @@ module Api
                       "can't upload a simple valid diff to changeset: #{@response.body}"
 
       ## Now try with the public user
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
       changeset_id = changeset.id
 
       # simple diff to change a node, way and relation by removing
@@ -606,7 +878,7 @@ module Api
       way = create(:way_with_nodes, :nodes_count => 2)
       relation = create(:relation)
 
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -632,30 +904,31 @@ module Api
 
       # upload it
       post changeset_upload_path(changeset), :params => diff, :headers => auth_header
-      assert_response :success,
-                      "can't upload a simple valid creation to changeset: #{@response.body}"
-
-      # check the returned payload
-      assert_select "diffResult[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_select "diffResult>node", 1
-      assert_select "diffResult>way", 1
-      assert_select "diffResult>relation", 1
-
-      # inspect the response to find out what the new element IDs are
-      doc = XML::Parser.string(@response.body).parse
-      new_node_id = doc.find("//diffResult/node").first["new_id"].to_i
-      new_way_id = doc.find("//diffResult/way").first["new_id"].to_i
-      new_rel_id = doc.find("//diffResult/relation").first["new_id"].to_i
-
-      # check the old IDs are all present and negative one
-      assert_equal(-1, doc.find("//diffResult/node").first["old_id"].to_i)
-      assert_equal(-1, doc.find("//diffResult/way").first["old_id"].to_i)
-      assert_equal(-1, doc.find("//diffResult/relation").first["old_id"].to_i)
+      assert_response :success,
+                      "can't upload a simple valid creation to changeset: #{@response.body}"
 
-      # check the versions are present and equal one
-      assert_equal 1, doc.find("//diffResult/node").first["new_version"].to_i
-      assert_equal 1, doc.find("//diffResult/way").first["new_version"].to_i
-      assert_equal 1, doc.find("//diffResult/relation").first["new_version"].to_i
+      # check the returned payload
+      new_node_id, new_way_id, new_rel_id = nil
+      assert_dom "diffResult[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1 do
+        # inspect the response to find out what the new element IDs are
+        # check the old IDs are all present and negative one
+        # check the versions are present and equal one
+        assert_dom "> node", 1 do |(node_el)|
+          new_node_id = node_el["new_id"].to_i
+          assert_dom "> @old_id", "-1"
+          assert_dom "> @new_version", "1"
+        end
+        assert_dom "> way", 1 do |(way_el)|
+          new_way_id = way_el["new_id"].to_i
+          assert_dom "> @old_id", "-1"
+          assert_dom "> @new_version", "1"
+        end
+        assert_dom "> relation", 1 do |(rel_el)|
+          new_rel_id = rel_el["new_id"].to_i
+          assert_dom "> @old_id", "-1"
+          assert_dom "> @new_version", "1"
+        end
+      end
 
       # check that the changes made it into the database
       assert_equal 2, Node.find(new_node_id).tags.size, "new node should have two tags"
@@ -676,7 +949,7 @@ module Api
       create(:relation_member, :relation => super_relation, :member => used_way)
       create(:relation_member, :relation => super_relation, :member => used_node)
 
-      auth_header = basic_authorization_header changeset.user.display_name, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = XML::Document.new
       diff.root = XML::Node.new "osmChange"
@@ -718,7 +991,7 @@ module Api
       node = create(:node)
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.display_name, "test"
+      auth_header = bearer_authorization_header changeset.user
       diff = "<osmChange><delete><node id='#{node.id}' version='#{node.version}' changeset='#{changeset.id}'/></delete></osmChange>"
 
       # upload it
@@ -735,14 +1008,14 @@ module Api
 
     def test_repeated_changeset_create
       3.times do
-        auth_header = basic_authorization_header create(:user).email, "test"
+        auth_header = bearer_authorization_header
 
         # create a temporary changeset
         xml = "<osm><changeset>" \
               "<tag k='created_by' v='osm test suite checking changesets'/>" \
               "</changeset></osm>"
         assert_difference "Changeset.count", 1 do
-          put changeset_create_path, :params => xml, :headers => auth_header
+          post api_changesets_path, :params => xml, :headers => auth_header
         end
         assert_response :success
       end
@@ -750,13 +1023,13 @@ module Api
 
     def test_upload_large_changeset
       user = create(:user)
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # create an old changeset to ensure we have the maximum rate limit
       create(:changeset, :user => user, :created_at => Time.now.utc - 28.days)
 
       # create a changeset
-      put changeset_create_path, :params => "<osm><changeset/></osm>", :headers => auth_header
+      post api_changesets_path, :params => "<osm><changeset/></osm>", :headers => auth_header
       assert_response :success, "Should be able to create a changeset: #{@response.body}"
       changeset_id = @response.body.to_i
 
@@ -812,7 +1085,7 @@ module Api
       create(:relation_member, :relation => relation, :member => used_way)
       create(:relation_member, :relation => relation, :member => used_node)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = XML::Document.new
       diff.root = XML::Node.new "osmChange"
@@ -854,7 +1127,7 @@ module Api
       create(:relation_member, :relation => super_relation, :member => used_way)
       create(:relation_member, :relation => super_relation, :member => used_node)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = XML::Document.new
       diff.root = XML::Node.new "osmChange"
@@ -878,28 +1151,26 @@ module Api
                       "can't do a conditional delete of in use objects: #{@response.body}"
 
       # check the returned payload
-      assert_select "diffResult[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_select "diffResult>node", 1
-      assert_select "diffResult>way", 1
-      assert_select "diffResult>relation", 1
-
-      # parse the response
-      doc = XML::Parser.string(@response.body).parse
-
-      # check the old IDs are all present and what we expect
-      assert_equal used_node.id, doc.find("//diffResult/node").first["old_id"].to_i
-      assert_equal used_way.id, doc.find("//diffResult/way").first["old_id"].to_i
-      assert_equal used_relation.id, doc.find("//diffResult/relation").first["old_id"].to_i
-
-      # check the new IDs are all present and unchanged
-      assert_equal used_node.id, doc.find("//diffResult/node").first["new_id"].to_i
-      assert_equal used_way.id, doc.find("//diffResult/way").first["new_id"].to_i
-      assert_equal used_relation.id, doc.find("//diffResult/relation").first["new_id"].to_i
-
-      # check the new versions are all present and unchanged
-      assert_equal used_node.version, doc.find("//diffResult/node").first["new_version"].to_i
-      assert_equal used_way.version, doc.find("//diffResult/way").first["new_version"].to_i
-      assert_equal used_relation.version, doc.find("//diffResult/relation").first["new_version"].to_i
+      assert_dom "diffResult[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1 do
+        # check the old IDs are all present and what we expect
+        # check the new IDs are all present and unchanged
+        # check the new versions are all present and unchanged
+        assert_dom "> node", 1 do
+          assert_dom "> @old_id", used_node.id.to_s
+          assert_dom "> @new_id", used_node.id.to_s
+          assert_dom "> @new_version", used_node.version.to_s
+        end
+        assert_dom "> way", 1 do
+          assert_dom "> @old_id", used_way.id.to_s
+          assert_dom "> @new_id", used_way.id.to_s
+          assert_dom "> @new_version", used_way.version.to_s
+        end
+        assert_dom "> relation", 1 do
+          assert_dom "> @old_id", used_relation.id.to_s
+          assert_dom "> @new_id", used_relation.id.to_s
+          assert_dom "> @new_version", used_relation.version.to_s
+        end
+      end
 
       # check that nothing was, in fact, deleted
       assert Node.find(used_node.id).visible
@@ -912,7 +1183,7 @@ module Api
     def test_upload_invalid_too_long_tag
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -942,7 +1213,7 @@ module Api
 
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -973,14 +1244,14 @@ module Api
                       "can't upload a complex diff to changeset: #{@response.body}"
 
       # check the returned payload
-      assert_select "diffResult[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1
-      assert_select "diffResult>node", 1
-      assert_select "diffResult>way", 1
-      assert_select "diffResult>relation", 1
-
-      # inspect the response to find out what the new element IDs are
-      doc = XML::Parser.string(@response.body).parse
-      new_node_id = doc.find("//diffResult/node").first["new_id"].to_i
+      new_node_id = nil
+      assert_dom "diffResult[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1 do
+        assert_dom "> node", 1 do |(node_el)|
+          new_node_id = node_el["new_id"].to_i
+        end
+        assert_dom "> way", 1
+        assert_dom "> relation", 1
+      end
 
       # check that the changes made it into the database
       assert_equal 2, Node.find(new_node_id).tags.size, "new node should have two tags"
@@ -1001,7 +1272,7 @@ module Api
       relation = create(:relation)
       other_relation = create(:relation)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -1044,7 +1315,7 @@ module Api
     def test_upload_multiple_valid
       node = create(:node)
       changeset = create(:changeset)
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # change the location of a node multiple times, each time referencing
       # the last version. doesn't this depend on version numbers being
@@ -1082,7 +1353,7 @@ module Api
       node = create(:node)
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1104,7 +1375,7 @@ module Api
     def test_upload_missing_version
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1125,7 +1396,7 @@ module Api
     def test_action_upload_invalid
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1150,7 +1421,7 @@ module Api
       other_relation = create(:relation)
       create(:relation_tag, :relation => relation)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1185,7 +1456,7 @@ module Api
     def test_upload_reuse_placeholder_valid
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1219,7 +1490,7 @@ module Api
     def test_upload_placeholder_invalid
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1257,7 +1528,7 @@ module Api
     def test_upload_process_order
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1281,7 +1552,7 @@ module Api
     def test_upload_duplicate_delete
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1328,7 +1599,7 @@ module Api
       changeset = create(:changeset)
       way = create(:way)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1383,7 +1654,7 @@ module Api
       changeset = create(:changeset)
       relation = create(:relation)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       diff = <<~CHANGESET
         <osmChange>
@@ -1435,12 +1706,12 @@ module Api
     # test what happens if a diff is uploaded containing only a node
     # move.
     def test_upload_node_move
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success
       changeset_id = @response.body.to_i
 
@@ -1472,12 +1743,12 @@ module Api
     ##
     # test what happens if a diff is uploaded adding a node to a way.
     def test_upload_way_extend
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success
       changeset_id = @response.body.to_i
 
@@ -1513,7 +1784,7 @@ module Api
     def test_upload_empty_invalid
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       ["<osmChange/>",
        "<osmChange></osmChange>",
@@ -1533,7 +1804,7 @@ module Api
       node = create(:node)
       create(:relation_member, :member => node)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # try and delete a node that is in use
       diff = XML::Document.new
@@ -1557,7 +1828,7 @@ module Api
     def test_upload_not_found
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # modify node
       diff = <<~CHANGESET
@@ -1641,7 +1912,7 @@ module Api
     def test_upload_relation_placeholder_not_fix
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       # modify node
       diff = <<~CHANGESET
@@ -1675,7 +1946,7 @@ module Api
     def test_upload_multiple_delete_block
       changeset = create(:changeset)
 
-      auth_header = basic_authorization_header changeset.user.email, "test"
+      auth_header = bearer_authorization_header changeset.user
 
       node = create(:node)
       way = create(:way)
@@ -1718,7 +1989,7 @@ module Api
                                      :num_changes => Settings.initial_changes_per_hour - 2)
 
       # create authentication header
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -1773,7 +2044,7 @@ module Api
       end
 
       # create authentication header
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -1814,7 +2085,7 @@ module Api
                                      :max_lat => (0.5 * GeoRecord::SCALE).round, :max_lon => (2.5 * GeoRecord::SCALE).round)
 
       # create authentication header
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # simple diff to create a node
       diff = <<~CHANGESET
@@ -1848,7 +2119,7 @@ module Api
                                      :max_lat => (0.5 * GeoRecord::SCALE).round, :max_lon => (2.5 * GeoRecord::SCALE).round)
 
       # create authentication header
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # simple diff to create a node way and relation using placeholders
       diff = <<~CHANGESET
@@ -1874,23 +2145,23 @@ module Api
       node = create(:node)
 
       ## First try with a non-public user, which should get a forbidden
-      auth_header = basic_authorization_header create(:user, :data_public => false).email, "test"
+      auth_header = bearer_authorization_header create(:user, :data_public => false)
 
       # create a temporary changeset
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :forbidden
 
       ## Now try with a normal user
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       # create a temporary changeset
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success
       changeset_id = @response.body.to_i
 
@@ -1929,13 +2200,13 @@ module Api
     #
     # NOTE: the error turned out to be something else completely!
     def test_josm_upload
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       # create a temporary changeset
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success
       changeset_id = @response.body.to_i
 
@@ -1990,13 +2261,13 @@ module Api
       node = create(:node)
       node2 = create(:node)
       way = create(:way)
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       # create a temporary changeset
       xml = "<osm><changeset>" \
             "<tag k='created_by' v='osm test suite checking changesets'/>" \
             "</changeset></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success
       changeset_id = @response.body.to_i
 
@@ -2105,18 +2376,18 @@ module Api
       way = create(:way)
       create(:way_node, :way => way, :node => create(:node, :lat => 0.3, :lon => 0.3))
 
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       # create a new changeset
       xml = "<osm><changeset/></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success, "Creating of changeset failed."
       changeset_id = @response.body.to_i
 
       # add a single node to it
       with_controller(NodesController.new) do
         xml = "<osm><node lon='0.1' lat='0.2' changeset='#{changeset_id}'/></osm>"
-        put node_create_path, :params => xml, :headers => auth_header
+        post api_nodes_path, :params => xml, :headers => auth_header
         assert_response :success, "Couldn't create node."
       end
 
@@ -2131,7 +2402,7 @@ module Api
       # add another node to it
       with_controller(NodesController.new) do
         xml = "<osm><node lon='0.2' lat='0.1' changeset='#{changeset_id}'/></osm>"
-        put node_create_path, :params => xml, :headers => auth_header
+        post api_nodes_path, :params => xml, :headers => auth_header
         assert_response :success, "Couldn't create second node."
       end
 
@@ -2159,249 +2430,6 @@ module Api
       assert_select "osm>changeset[max_lat='0.3000000']", 1
     end
 
-    ##
-    # test the query functionality of changesets
-    def test_query
-      private_user = create(:user, :data_public => false)
-      private_user_changeset = create(:changeset, :user => private_user)
-      private_user_closed_changeset = create(:changeset, :closed, :user => private_user)
-      user = create(:user)
-      changeset = create(:changeset, :user => user)
-      closed_changeset = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 1, 1, 0, 0, 0), :closed_at => Time.utc(2008, 1, 2, 0, 0, 0))
-      changeset2 = create(:changeset, :min_lat => (5 * GeoRecord::SCALE).round, :min_lon => (5 * GeoRecord::SCALE).round, :max_lat => (15 * GeoRecord::SCALE).round, :max_lon => (15 * GeoRecord::SCALE).round)
-      changeset3 = create(:changeset, :min_lat => (4.5 * GeoRecord::SCALE).round, :min_lon => (4.5 * GeoRecord::SCALE).round, :max_lat => (5 * GeoRecord::SCALE).round, :max_lon => (5 * GeoRecord::SCALE).round)
-
-      get changesets_path(:bbox => "-10,-10, 10, 10")
-      assert_response :success, "can't get changesets in bbox"
-      assert_changesets [changeset2, changeset3]
-
-      get changesets_path(:bbox => "4.5,4.5,4.6,4.6")
-      assert_response :success, "can't get changesets in bbox"
-      assert_changesets [changeset3]
-
-      # not found when looking for changesets of non-existing users
-      get changesets_path(:user => User.maximum(:id) + 1)
-      assert_response :not_found
-      assert_equal "text/plain", @response.media_type
-      get changesets_path(:display_name => " ")
-      assert_response :not_found
-      assert_equal "text/plain", @response.media_type
-
-      # can't get changesets of user 1 without authenticating
-      get changesets_path(:user => private_user.id)
-      assert_response :not_found, "shouldn't be able to get changesets by non-public user (ID)"
-      get changesets_path(:display_name => private_user.display_name)
-      assert_response :not_found, "shouldn't be able to get changesets by non-public user (name)"
-
-      # but this should work
-      auth_header = basic_authorization_header private_user.email, "test"
-      get changesets_path(:user => private_user.id), :headers => auth_header
-      assert_response :success, "can't get changesets by user ID"
-      assert_changesets [private_user_changeset, private_user_closed_changeset]
-
-      get changesets_path(:display_name => private_user.display_name), :headers => auth_header
-      assert_response :success, "can't get changesets by user name"
-      assert_changesets [private_user_changeset, private_user_closed_changeset]
-
-      # test json endpoint
-      get changesets_path(:display_name => private_user.display_name), :headers => auth_header, :params => { :format => "json" }
-      assert_response :success, "can't get changesets by user name"
-
-      js = ActiveSupport::JSON.decode(@response.body)
-      assert_not_nil js
-
-      assert_equal Settings.api_version, js["version"]
-      assert_equal Settings.generator, js["generator"]
-      assert_equal 2, js["changesets"].count
-
-      # check that the correct error is given when we provide both UID and name
-      get changesets_path(:user => private_user.id,
-                          :display_name => private_user.display_name), :headers => auth_header
-      assert_response :bad_request, "should be a bad request to have both ID and name specified"
-
-      get changesets_path(:user => private_user.id, :open => true), :headers => auth_header
-      assert_response :success, "can't get changesets by user and open"
-      assert_changesets [private_user_changeset]
-
-      get changesets_path(:time => "2007-12-31"), :headers => auth_header
-      assert_response :success, "can't get changesets by time-since"
-      assert_changesets [private_user_changeset, private_user_closed_changeset, changeset, closed_changeset, changeset2, changeset3]
-
-      get changesets_path(:time => "2008-01-01T12:34Z"), :headers => auth_header
-      assert_response :success, "can't get changesets by time-since with hour"
-      assert_changesets [private_user_changeset, private_user_closed_changeset, changeset, closed_changeset, changeset2, changeset3]
-
-      get changesets_path(:time => "2007-12-31T23:59Z,2008-01-02T00:01Z"), :headers => auth_header
-      assert_response :success, "can't get changesets by time-range"
-      assert_changesets [closed_changeset]
-
-      get changesets_path(:open => "true"), :headers => auth_header
-      assert_response :success, "can't get changesets by open-ness"
-      assert_changesets [private_user_changeset, changeset, changeset2, changeset3]
-
-      get changesets_path(:closed => "true"), :headers => auth_header
-      assert_response :success, "can't get changesets by closed-ness"
-      assert_changesets [private_user_closed_changeset, closed_changeset]
-
-      get changesets_path(:closed => "true", :user => private_user.id), :headers => auth_header
-      assert_response :success, "can't get changesets by closed-ness and user"
-      assert_changesets [private_user_closed_changeset]
-
-      get changesets_path(:closed => "true", :user => user.id), :headers => auth_header
-      assert_response :success, "can't get changesets by closed-ness and user"
-      assert_changesets [closed_changeset]
-
-      get changesets_path(:changesets => "#{private_user_changeset.id},#{changeset.id},#{closed_changeset.id}"), :headers => auth_header
-      assert_response :success, "can't get changesets by id (as comma-separated string)"
-      assert_changesets [private_user_changeset, changeset, closed_changeset]
-
-      get changesets_path(:changesets => ""), :headers => auth_header
-      assert_response :bad_request, "should be a bad request since changesets is empty"
-    end
-
-    ##
-    # test the query functionality of changesets with the limit parameter
-    def test_query_limit
-      user = create(:user)
-      changeset1 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 1, 1, 0, 0, 0), :closed_at => Time.utc(2008, 1, 2, 0, 0, 0))
-      changeset2 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 2, 1, 0, 0, 0), :closed_at => Time.utc(2008, 2, 2, 0, 0, 0))
-      changeset3 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 3, 1, 0, 0, 0), :closed_at => Time.utc(2008, 3, 2, 0, 0, 0))
-      changeset4 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 4, 1, 0, 0, 0), :closed_at => Time.utc(2008, 4, 2, 0, 0, 0))
-      changeset5 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 5, 1, 0, 0, 0), :closed_at => Time.utc(2008, 5, 2, 0, 0, 0))
-
-      get changesets_path
-      assert_response :success
-      assert_changesets_in_order [changeset5, changeset4, changeset3, changeset2, changeset1]
-
-      get changesets_path(:limit => "3")
-      assert_response :success
-      assert_changesets_in_order [changeset5, changeset4, changeset3]
-
-      get changesets_path(:limit => "0")
-      assert_response :bad_request
-
-      get changesets_path(:limit => Settings.max_changeset_query_limit)
-      assert_response :success
-      assert_changesets_in_order [changeset5, changeset4, changeset3, changeset2, changeset1]
-
-      get changesets_path(:limit => Settings.max_changeset_query_limit + 1)
-      assert_response :bad_request
-    end
-
-    ##
-    # test the query functionality of sequential changesets with order and time parameters
-    def test_query_order
-      user = create(:user)
-      changeset1 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 1, 1, 0, 0, 0), :closed_at => Time.utc(2008, 1, 2, 0, 0, 0))
-      changeset2 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 2, 1, 0, 0, 0), :closed_at => Time.utc(2008, 2, 2, 0, 0, 0))
-      changeset3 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 3, 1, 0, 0, 0), :closed_at => Time.utc(2008, 3, 2, 0, 0, 0))
-      changeset4 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 4, 1, 0, 0, 0), :closed_at => Time.utc(2008, 4, 2, 0, 0, 0))
-      changeset5 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 5, 1, 0, 0, 0), :closed_at => Time.utc(2008, 5, 2, 0, 0, 0))
-      changeset6 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2008, 6, 1, 0, 0, 0), :closed_at => Time.utc(2008, 6, 2, 0, 0, 0))
-
-      get changesets_path
-      assert_response :success
-      assert_changesets_in_order [changeset6, changeset5, changeset4, changeset3, changeset2, changeset1]
-
-      get changesets_path(:order => "oldest")
-      assert_response :success
-      assert_changesets_in_order [changeset1, changeset2, changeset3, changeset4, changeset5, changeset6]
-
-      [
-        # lower time bound at the opening time of a changeset
-        ["2008-02-01T00:00:00Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3, changeset2], [changeset5, changeset4, changeset3, changeset2]],
-        # lower time bound in the middle of a changeset
-        ["2008-02-01T12:00:00Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3, changeset2], [changeset5, changeset4, changeset3]],
-        # lower time bound at the closing time of a changeset
-        ["2008-02-02T00:00:00Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3, changeset2], [changeset5, changeset4, changeset3]],
-        # lower time bound after the closing time of a changeset
-        ["2008-02-02T00:00:01Z", "2008-05-15T00:00:00Z", [changeset5, changeset4, changeset3], [changeset5, changeset4, changeset3]],
-        # upper time bound in the middle of a changeset
-        ["2007-09-09T12:00:00Z", "2008-04-01T12:00:00Z", [changeset4, changeset3, changeset2, changeset1], [changeset4, changeset3, changeset2, changeset1]],
-        # empty range
-        ["2009-02-02T00:00:01Z", "2018-05-15T00:00:00Z", [], []]
-      ].each do |from, to, interval_changesets, point_changesets|
-        get changesets_path(:time => "#{from},#{to}")
-        assert_response :success
-        assert_changesets_in_order interval_changesets
-
-        get changesets_path(:from => from, :to => to)
-        assert_response :success
-        assert_changesets_in_order point_changesets
-
-        get changesets_path(:from => from, :to => to, :order => "oldest")
-        assert_response :success
-        assert_changesets_in_order point_changesets.reverse
-      end
-    end
-
-    ##
-    # test the query functionality of overlapping changesets with order and time parameters
-    def test_query_order_overlapping
-      user = create(:user)
-      changeset1 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 4, 17, 0, 0), :closed_at => Time.utc(2015, 6, 4, 17, 0, 0))
-      changeset2 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 4, 16, 0, 0), :closed_at => Time.utc(2015, 6, 4, 18, 0, 0))
-      changeset3 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 4, 14, 0, 0), :closed_at => Time.utc(2015, 6, 4, 20, 0, 0))
-      changeset4 = create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 3, 23, 0, 0), :closed_at => Time.utc(2015, 6, 4, 23, 0, 0))
-      create(:changeset, :closed, :user => user, :created_at => Time.utc(2015, 6, 2, 23, 0, 0), :closed_at => Time.utc(2015, 6, 3, 23, 0, 0))
-
-      get changesets_path(:time => "2015-06-04T00:00:00Z")
-      assert_response :success
-      assert_changesets_in_order [changeset1, changeset2, changeset3, changeset4]
-
-      get changesets_path(:from => "2015-06-04T00:00:00Z")
-      assert_response :success
-      assert_changesets_in_order [changeset1, changeset2, changeset3]
-
-      get changesets_path(:from => "2015-06-04T00:00:00Z", :order => "oldest")
-      assert_response :success
-      assert_changesets_in_order [changeset3, changeset2, changeset1]
-
-      get changesets_path(:time => "2015-06-04T16:00:00Z,2015-06-04T17:30:00Z")
-      assert_response :success
-      assert_changesets_in_order [changeset1, changeset2, changeset3, changeset4]
-
-      get changesets_path(:from => "2015-06-04T16:00:00Z", :to => "2015-06-04T17:30:00Z")
-      assert_response :success
-      assert_changesets_in_order [changeset1, changeset2]
-
-      get changesets_path(:from => "2015-06-04T16:00:00Z", :to => "2015-06-04T17:30:00Z", :order => "oldest")
-      assert_response :success
-      assert_changesets_in_order [changeset2, changeset1]
-    end
-
-    ##
-    # check that errors are returned if garbage is inserted
-    # into query strings
-    def test_query_invalid
-      ["abracadabra!",
-       "1,2,3,F",
-       ";drop table users;"].each do |bbox|
-        get changesets_path(:bbox => bbox)
-        assert_response :bad_request, "'#{bbox}' isn't a bbox"
-      end
-
-      ["now()",
-       "00-00-00",
-       ";drop table users;",
-       ",",
-       "-,-"].each do |time|
-        get changesets_path(:time => time)
-        assert_response :bad_request, "'#{time}' isn't a valid time range"
-      end
-
-      ["me",
-       "foobar",
-       "-1",
-       "0"].each do |uid|
-        get changesets_path(:user => uid)
-        assert_response :bad_request, "'#{uid}' isn't a valid user ID"
-      end
-
-      get changesets_path(:order => "oldest", :time => "2008-01-01T00:00Z,2018-01-01T00:00Z")
-      assert_response :bad_request, "cannot use order=oldest with time"
-    end
-
     ##
     # check updating tags on a changeset
     def test_changeset_update
@@ -2422,12 +2450,12 @@ module Api
       assert_response :unauthorized
 
       # try with the wrong authorization
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
       put changeset_show_path(private_changeset), :params => new_changeset.to_s, :headers => auth_header
       assert_response :conflict
 
       # now this should get an unauthorized
-      auth_header = basic_authorization_header private_user.email, "test"
+      auth_header = bearer_authorization_header private_user
       put changeset_show_path(private_changeset), :params => new_changeset.to_s, :headers => auth_header
       assert_require_public_data "user with their data non-public, shouldn't be able to edit their changeset"
 
@@ -2443,12 +2471,12 @@ module Api
       assert_response :unauthorized
 
       # try with the wrong authorization
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
       put changeset_show_path(changeset), :params => new_changeset.to_s, :headers => auth_header
       assert_response :conflict
 
       # now this should work...
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
       put changeset_show_path(changeset), :params => new_changeset.to_s, :headers => auth_header
       assert_response :success
 
@@ -2461,7 +2489,7 @@ module Api
     # check that a user different from the one who opened the changeset
     # can't modify it.
     def test_changeset_update_invalid
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       changeset = create(:changeset)
       new_changeset = create_changeset_xml(:user => changeset.user, :id => changeset.id)
@@ -2479,14 +2507,14 @@ module Api
     ## FIXME should be changed to an integration test due to the with_controller
     def test_changeset_limits
       user = create(:user)
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # create an old changeset to ensure we have the maximum rate limit
       create(:changeset, :user => user, :created_at => Time.now.utc - 28.days)
 
       # open a new changeset
       xml = "<osm><changeset/></osm>"
-      put changeset_create_path, :params => xml, :headers => auth_header
+      post api_changesets_path, :params => xml, :headers => auth_header
       assert_response :success, "can't create a new changeset"
       cs_id = @response.body.to_i
 
@@ -2501,7 +2529,7 @@ module Api
       with_controller(NodesController.new) do
         # create a new node
         xml = "<osm><node changeset='#{cs_id}' lat='0.0' lon='0.0'/></osm>"
-        put node_create_path, :params => xml, :headers => auth_header
+        post api_nodes_path, :params => xml, :headers => auth_header
         assert_response :success, "can't create a new node"
         node_id = @response.body.to_i
 
@@ -2560,7 +2588,7 @@ module Api
     ##
     # test subscribe success
     def test_subscribe_success
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
       changeset = create(:changeset, :closed)
 
       assert_difference "changeset.subscribers.count", 1 do
@@ -2588,7 +2616,7 @@ module Api
       end
       assert_response :unauthorized
 
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
 
       # bad changeset id
       assert_no_difference "changeset.subscribers.count" do
@@ -2609,7 +2637,7 @@ module Api
     # test unsubscribe success
     def test_unsubscribe_success
       user = create(:user)
-      auth_header = basic_authorization_header user.email, "test"
+      auth_header = bearer_authorization_header user
       changeset = create(:changeset, :closed)
       changeset.subscribers.push(user)
 
@@ -2638,7 +2666,7 @@ module Api
       end
       assert_response :unauthorized
 
-      auth_header = basic_authorization_header create(:user).email, "test"
+      auth_header = bearer_authorization_header
 
       # bad changeset id
       assert_no_difference "changeset.subscribers.count" do
@@ -2658,16 +2686,20 @@ module Api
 
     ##
     # check that the output consists of one specific changeset
-    def assert_single_changeset(changeset)
-      assert_select "osm>changeset", 1
-      assert_select "osm>changeset>@id", changeset.id.to_s
-      assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema
-      if changeset.open?
-        assert_select "osm>changeset>@open", "true"
-        assert_select "osm>changeset>@closed_at", 0
-      else
-        assert_select "osm>changeset>@open", "false"
-        assert_select "osm>changeset>@closed_at", changeset.closed_at.xmlschema
+    def assert_single_changeset(changeset, &)
+      assert_dom "> changeset", 1 do
+        assert_dom "> @id", changeset.id.to_s
+        assert_dom "> @created_at", changeset.created_at.xmlschema
+        if changeset.open?
+          assert_dom "> @open", "true"
+          assert_dom "> @closed_at", 0
+        else
+          assert_dom "> @open", "false"
+          assert_dom "> @closed_at", changeset.closed_at.xmlschema
+        end
+        assert_dom "> @comments_count", changeset.comments.length.to_s
+        assert_dom "> @changes_count", changeset.num_changes.to_s
+        yield if block_given?
       end
     end
 
@@ -2681,15 +2713,8 @@ module Api
         assert_not js["changeset"]["open"]
         assert_equal changeset.closed_at.xmlschema, js["changeset"]["closed_at"]
       end
-    end
-
-    ##
-    # check that certain changesets exist in the output
-    def assert_changesets(changesets)
-      assert_select "osm>changeset", changesets.size
-      changesets.each do |changeset|
-        assert_select "osm>changeset[id='#{changeset.id}']", 1
-      end
+      assert_equal changeset.comments.length, js["changeset"]["comments_count"]
+      assert_equal changeset.num_changes, js["changeset"]["changes_count"]
     end
 
     ##