Add tests for changeset order + from..to queries

[rails.git] / 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 af5cabbaaa771b4ea9baa3500b22c242cba14fa4..fd1940d6b2b973814e2b92f7ee590bd8debc3629 100644 (file)
--- a/test/controllers/api/changesets_controller_test.rb
+++ b/test/controllers/api/changesets_controller_test.rb
@@ -151,7 +151,7 @@ module Api
       get changeset_show_path(changeset)
       assert_response :success, "cannot get first changeset"
 
       get changeset_show_path(changeset)
       assert_response :success, "cannot get first changeset"
 

-      assert_select "osm[version='#{Settings.api_version}'][generator='OpenStreetMap server']", 1
+      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1

       assert_select "osm>changeset[id='#{changeset.id}']", 1
       assert_select "osm>changeset>@open", "true"
       assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema
       assert_select "osm>changeset[id='#{changeset.id}']", 1
       assert_select "osm>changeset>@open", "true"
       assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema


@@ -161,7 +161,7 @@ module Api
       get changeset_show_path(changeset), :params => { :include_discussion => true }
       assert_response :success, "cannot get first changeset with comments"
 
       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='OpenStreetMap server']", 1
+      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1

       assert_select "osm>changeset[id='#{changeset.id}']", 1
       assert_select "osm>changeset>@open", "true"
       assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema
       assert_select "osm>changeset[id='#{changeset.id}']", 1
       assert_select "osm>changeset>@open", "true"
       assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema


@@ -175,7 +175,7 @@ module Api
       get changeset_show_path(changeset), :params => { :include_discussion => true }
       assert_response :success, "cannot get closed changeset with comments"
 
       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='OpenStreetMap server']", 1
+      assert_select "osm[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1

       assert_select "osm>changeset[id='#{changeset.id}']", 1
       assert_select "osm>changeset>@open", "false"
       assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema
       assert_select "osm>changeset[id='#{changeset.id}']", 1
       assert_select "osm>changeset>@open", "false"
       assert_select "osm>changeset>@created_at", changeset.created_at.xmlschema


@@ -194,7 +194,7 @@ module Api
       assert_not_nil js
 
       assert_equal Settings.api_version, js["version"]
       assert_not_nil js
 
       assert_equal Settings.api_version, js["version"]

-      assert_equal "OpenStreetMap server", js["generator"]
+      assert_equal Settings.generator, js["generator"]

       assert_equal changeset.id, js["changeset"]["id"]
       assert js["changeset"]["open"]
       assert_equal changeset.created_at.xmlschema, js["changeset"]["created_at"]
       assert_equal changeset.id, js["changeset"]["id"]
       assert js["changeset"]["open"]
       assert_equal changeset.created_at.xmlschema, js["changeset"]["created_at"]


@@ -210,7 +210,7 @@ module Api
       js = ActiveSupport::JSON.decode(@response.body)
       assert_not_nil js
       assert_equal Settings.api_version, js["version"]
       js = ActiveSupport::JSON.decode(@response.body)
       assert_not_nil js
       assert_equal Settings.api_version, js["version"]

-      assert_equal "OpenStreetMap server", js["generator"]
+      assert_equal Settings.generator, js["generator"]

       assert_equal changeset.id, js["changeset"]["id"]
       assert js["changeset"]["open"]
       assert_equal changeset.created_at.xmlschema, js["changeset"]["created_at"]
       assert_equal changeset.id, js["changeset"]["id"]
       assert js["changeset"]["open"]
       assert_equal changeset.created_at.xmlschema, js["changeset"]["created_at"]


@@ -247,7 +247,7 @@ module Api
 
       assert_not_nil js
       assert_equal Settings.api_version, js["version"]
 
       assert_not_nil js
       assert_equal Settings.api_version, js["version"]

-      assert_equal "OpenStreetMap server", js["generator"]
+      assert_equal Settings.generator, js["generator"]

       assert_equal changeset.id, js["changeset"]["id"]
       assert_not js["changeset"]["open"]
       assert_equal changeset.created_at.xmlschema, js["changeset"]["created_at"]
       assert_equal changeset.id, js["changeset"]["id"]
       assert_not js["changeset"]["open"]
       assert_equal changeset.created_at.xmlschema, js["changeset"]["created_at"]


@@ -272,7 +272,7 @@ module Api
       js = ActiveSupport::JSON.decode(@response.body)
       assert_not_nil js
       assert_equal(-5, js["changeset"]["min_lat"])
       js = ActiveSupport::JSON.decode(@response.body)
       assert_not_nil js
       assert_equal(-5, js["changeset"]["min_lat"])

-      assert_equal  5, js["changeset"]["min_lon"]
+      assert_equal 5, js["changeset"]["min_lon"]

       assert_equal 15, js["changeset"]["max_lat"]
       assert_equal 12, js["changeset"]["max_lon"]
     end
       assert_equal 15, js["changeset"]["max_lat"]
       assert_equal 12, js["changeset"]["max_lon"]
     end


@@ -521,7 +521,7 @@ module Api
                       "can't upload a simple valid creation to changeset: #{@response.body}"
 
       # check the returned payload
                       "can't upload a simple valid creation to changeset: #{@response.body}"
 
       # check the returned payload

-      assert_select "diffResult[version='#{Settings.api_version}'][generator='OpenStreetMap server']", 1
+      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
       assert_select "diffResult>node", 1
       assert_select "diffResult>way", 1
       assert_select "diffResult>relation", 1


@@ -759,7 +759,7 @@ module Api
                       "can't do a conditional delete of in use objects: #{@response.body}"
 
       # check the returned payload
                       "can't do a conditional delete of in use objects: #{@response.body}"
 
       # check the returned payload

-      assert_select "diffResult[version='#{Settings.api_version}'][generator='OpenStreetMap server']", 1
+      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
       assert_select "diffResult>node", 1
       assert_select "diffResult>way", 1
       assert_select "diffResult>relation", 1


@@ -1116,6 +1116,90 @@ module Api
       post changeset_upload_path(changeset), :params => diff, :headers => auth_header
       assert_response :bad_request,
                       "shouldn't be able to re-use placeholder IDs"
       post changeset_upload_path(changeset), :params => diff, :headers => auth_header
       assert_response :bad_request,
                       "shouldn't be able to re-use placeholder IDs"

+
+      # placeholder_ids must be unique across all action blocks
+      diff = <<~CHANGESET
+        <osmChange>
+         <create>
+          <node id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+         </create>
+         <create>
+          <node id='-1' lon='1' lat='1' changeset='#{changeset.id}' version='1'/>
+         </create>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :bad_request,
+                      "shouldn't be able to re-use placeholder IDs"
+    end
+
+    def test_upload_process_order
+      changeset = create(:changeset)
+
+      auth_header = basic_authorization_header changeset.user.email, "test"
+
+      diff = <<~CHANGESET
+        <osmChange>
+        <create>
+          <node id="-1" lat="1" lon="2" changeset="#{changeset.id}"/>
+          <way id="-1" changeset="#{changeset.id}">
+              <nd ref="-1"/>
+              <nd ref="-2"/>
+          </way>
+          <node id="-2" lat="1" lon="2" changeset="#{changeset.id}"/>
+        </create>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :bad_request,
+                      "shouldn't refer elements behind it"
+    end
+
+    def test_upload_duplicate_delete
+      changeset = create(:changeset)
+
+      auth_header = basic_authorization_header changeset.user.email, "test"
+
+      diff = <<~CHANGESET
+        <osmChange>
+          <create>
+            <node id="-1" lat="39" lon="116" changeset="#{changeset.id}" />
+          </create>
+          <delete>
+            <node id="-1" version="1" changeset="#{changeset.id}" />
+            <node id="-1" version="1" changeset="#{changeset.id}" />
+          </delete>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :gone,
+                      "transaction should be cancelled by second deletion"
+
+      diff = <<~CHANGESET
+        <osmChange>
+          <create>
+            <node id="-1" lat="39" lon="116" changeset="#{changeset.id}" />
+          </create>
+          <delete if-unused="true">
+            <node id="-1" version="1" changeset="#{changeset.id}" />
+            <node id="-1" version="1" changeset="#{changeset.id}" />
+          </delete>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+
+      assert_select "diffResult>node", 3
+      assert_select "diffResult>node[old_id='-1']", 3
+      assert_select "diffResult>node[new_version='1']", 1
+      assert_select "diffResult>node[new_version='2']", 1

     end
 
     ##
     end
 
     ##


@@ -1346,11 +1430,158 @@ module Api
                       "failed to return error in XML format"
 
       # check the returned payload
                       "failed to return error in XML format"
 
       # check the returned payload

-      assert_select "osmError[version='#{Settings.api_version}'][generator='OpenStreetMap server']", 1
+      assert_select "osmError[version='#{Settings.api_version}'][generator='#{Settings.generator}']", 1

       assert_select "osmError>status", 1
       assert_select "osmError>message", 1
     end
 
       assert_select "osmError>status", 1
       assert_select "osmError>message", 1
     end
 

+    def test_upload_not_found
+      changeset = create(:changeset)
+
+      auth_header = basic_authorization_header changeset.user.email, "test"
+
+      # modify node
+      diff = <<~CHANGESET
+        <osmChange>
+        <modify>
+          <node id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+        </modify>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :not_found, "Node should not be found"
+
+      # modify way
+      diff = <<~CHANGESET
+        <osmChange>
+        <modify>
+          <way id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+        </modify>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :not_found, "Way should not be found"
+
+      # modify relation
+      diff = <<~CHANGESET
+        <osmChange>
+        <modify>
+          <relation id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+        </modify>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :not_found, "Relation should not be found"
+
+      # delete node
+      diff = <<~CHANGESET
+        <osmChange>
+        <delete>
+          <node id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+        </delete>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :not_found, "Node should not be deleted"
+
+      # delete way
+      diff = <<~CHANGESET
+        <osmChange>
+        <delete>
+          <way id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+        </delete>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :not_found, "Way should not be deleted"
+
+      # delete relation
+      diff = <<~CHANGESET
+        <osmChange>
+        <delete>
+          <relation id='-1' lon='0' lat='0' changeset='#{changeset.id}' version='1'/>
+        </delete>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff, :headers => auth_header
+      assert_response :not_found, "Relation should not be deleted"
+    end
+
+    def test_upload_relation_placeholder_not_fix
+      changeset = create(:changeset)
+
+      auth_header = basic_authorization_header changeset.user.email, "test"
+
+      # modify node
+      diff = <<~CHANGESET
+        <osmChange version='0.6'>
+          <create>
+            <relation id='-2' version='0' changeset='#{changeset.id}'>
+              <member type='relation' role='' ref='-4' />
+              <tag k='type' v='route' />
+              <tag k='name' v='AtoB' />
+            </relation>
+            <relation id='-3' version='0' changeset='#{changeset.id}'>
+              <tag k='type' v='route' />
+              <tag k='name' v='BtoA' />
+            </relation>
+            <relation id='-4' version='0' changeset='#{changeset.id}'>
+              <member type='relation' role='' ref='-2' />
+              <member type='relation' role='' ref='-3' />
+              <tag k='type' v='route_master' />
+              <tag k='name' v='master' />
+            </relation>
+          </create>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff.to_s, :headers => auth_header
+      assert_response :bad_request, "shouldn't be able to use reference -4 in relation -2: #{@response.body}"
+      assert_equal "Placeholder Relation not found for reference -4 in relation -2.", @response.body
+    end
+
+    def test_upload_multiple_delete_block
+      changeset = create(:changeset)
+
+      auth_header = basic_authorization_header changeset.user.email, "test"
+
+      node = create(:node)
+      way = create(:way)
+      create(:way_node, :way => way, :node => node)
+      alone_node = create(:node)
+
+      # modify node
+      diff = <<~CHANGESET
+        <osmChange version='0.6'>
+          <delete version="0.6">
+            <node id="#{node.id}" version="#{node.version}" changeset="#{changeset.id}"/>
+          </delete>
+          <delete version="0.6" if-unused="true">
+            <node id="#{alone_node.id}" version="#{alone_node.version}" changeset="#{changeset.id}"/>
+          </delete>
+        </osmChange>
+      CHANGESET
+
+      # upload it
+      post changeset_upload_path(changeset), :params => diff.to_s, :headers => auth_header
+      assert_response :precondition_failed,
+                      "shouldn't be able to upload a invalid deletion diff: #{@response.body}"
+      assert_equal "Precondition failed: Node #{node.id} is still used by ways #{way.id}.", @response.body
+    end
+

     ##
     # when we make some simple changes we get the same changes back from the
     # diff download.
     ##
     # when we make some simple changes we get the same changes back from the
     # diff download.


@@ -1537,7 +1768,7 @@ module Api
       get changeset_download_path(changeset)
 
       assert_response :success
       get changeset_download_path(changeset)
 
       assert_response :success

-      # print @response.body
+

       # FIXME: needs more assert_select tests
       assert_select "osmChange[version='#{Settings.api_version}'][generator='#{Settings.generator}']" do
         assert_select "create", :count => 5
       # FIXME: needs more assert_select tests
       assert_select "osmChange[version='#{Settings.api_version}'][generator='#{Settings.generator}']" do
         assert_select "create", :count => 5


@@ -1659,7 +1890,7 @@ module Api
       assert_not_nil js
 
       assert_equal Settings.api_version, js["version"]
       assert_not_nil js
 
       assert_equal Settings.api_version, js["version"]

-      assert_equal "OpenStreetMap server", js["generator"]
+      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
       assert_equal 2, js["changesets"].count
 
       # check that the correct error is given when we provide both UID and name


@@ -1707,6 +1938,117 @@ module Api
       assert_response :bad_request, "should be a bad request since changesets is empty"
     end
 
       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
     ##
     # check that errors are returned if garbage is inserted
     # into query strings


@@ -1734,6 +2076,9 @@ module Api
         get changesets_path(:user => uid)
         assert_response :bad_request, "'#{uid}' isn't a valid user ID"
       end
         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
 
     ##
     end
 
     ##


@@ -1987,8 +2332,7 @@ module Api
     private
 
     ##
     private
 
     ##

-    # boilerplate for checking that certain changesets exist in the
-    # output.
+    # check that certain changesets exist in the output

     def assert_changesets(changesets)
       assert_select "osm>changeset", changesets.size
       changesets.each do |changeset|
     def assert_changesets(changesets)
       assert_select "osm>changeset", changesets.size
       changesets.each do |changeset|


@@ -1996,6 +2340,15 @@ module Api
       end
     end
 
       end
     end
 

+    ##
+    # check that certain changesets exist in the output in the specified order
+    def assert_changesets_in_order(changesets)
+      assert_select "osm>changeset", changesets.size
+      changesets.each_with_index do |changeset, index|
+        assert_select "osm>changeset:nth-child(#{index + 1})[id='#{changeset.id}']", 1
+      end
+    end
+

     ##
     # update the changeset_id of a way element
     def update_changeset(xml, changeset_id)
     ##
     # update the changeset_id of a way element
     def update_changeset(xml, changeset_id)