Make maximising work properly again in Potlatch

[rails.git] / test / functional / changeset_controller_test.rb

diff --git a/test/functional/changeset_controller_test.rb b/test/functional/changeset_controller_test.rb
index a6eeaeeebd7911f02ae1c383a2e355af91bbc671..9ed9f295954ba3dc90382c4011933559c315f697 100644 (file)
--- a/test/functional/changeset_controller_test.rb
+++ b/test/functional/changeset_controller_test.rb
@@ -4,6 +4,79 @@ require 'changeset_controller'
 class ChangesetControllerTest < ActionController::TestCase
   api_fixtures
 
 class ChangesetControllerTest < ActionController::TestCase
   api_fixtures
 

+  ##
+  # test all routes which lead to this controller
+  def test_routes
+    assert_routing(
+      { :path => "/api/0.6/changeset/create", :method => :put },
+      { :controller => "changeset", :action => "create" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changeset/1/upload", :method => :post },
+      { :controller => "changeset", :action => "upload", :id => "1" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changeset/1/download", :method => :get },
+      { :controller => "changeset", :action => "download", :id => "1" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changeset/1/expand_bbox", :method => :post },
+      { :controller => "changeset", :action => "expand_bbox", :id => "1" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changeset/1", :method => :get },
+      { :controller => "changeset", :action => "read", :id => "1" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changeset/1", :method => :put },
+      { :controller => "changeset", :action => "update", :id => "1" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changeset/1/close", :method => :put },
+      { :controller => "changeset", :action => "close", :id => "1" }
+    )
+    assert_routing(
+      { :path => "/api/0.6/changesets", :method => :get },
+      { :controller => "changeset", :action => "query" }
+    )
+    assert_routing(
+      { :path => "/user/name/edits", :method => :get },
+      { :controller => "changeset", :action => "list", :display_name => "name" }
+    )
+    assert_routing(
+      { :path => "/user/name/edits/feed", :method => :get },
+      { :controller => "changeset", :action => "feed", :display_name => "name", :format => :atom }
+    )
+    assert_routing(
+      { :path => "/browse/friends", :method => :get },
+      { :controller => "changeset", :action => "list", :friends => true }
+    )
+    assert_routing(
+      { :path => "/browse/nearby", :method => :get },
+      { :controller => "changeset", :action => "list", :nearby => true }
+    )
+    assert_routing(
+      { :path => "/browse/changesets", :method => :get },
+      { :controller => "changeset", :action => "list" }
+    )
+    assert_routing(
+      { :path => "/browse/changesets/feed", :method => :get },
+      { :controller => "changeset", :action => "feed", :format => :atom }
+    )
+    assert_recognizes(
+      { :controller => "changeset", :action => "list" },
+      { :path => "/browse", :method => :get }
+    )
+    assert_recognizes(
+      { :controller => "changeset", :action => "list" },
+      { :path => "/history", :method => :get }
+    )
+    assert_recognizes(
+      { :controller => "changeset", :action => "feed", :format => :atom },
+      { :path => "/history/feed", :method => :get }
+    )
+  end
+

   # -----------------------
   # Test simple changeset creation
   # -----------------------
   # -----------------------
   # Test simple changeset creation
   # -----------------------


@@ -82,7 +155,7 @@ class ChangesetControllerTest < ActionController::TestCase
     post :create
     assert_response :method_not_allowed
   end
     post :create
     assert_response :method_not_allowed
   end

-    
+

   ##
   # check that the changeset can be read and returns the correct
   # document structure.
   ##
   # check that the changeset can be read and returns the correct
   # document structure.


@@ -95,6 +168,19 @@ class ChangesetControllerTest < ActionController::TestCase
     assert_select "osm>changeset[id=#{changeset_id}]", 1
   end
   
     assert_select "osm>changeset[id=#{changeset_id}]", 1
   end
   

+  ##
+  # check that a changeset that doesn't exist returns an appropriate message
+  def test_read_not_found
+    [0, -32, 233455644, "afg", "213"].each do |id|
+      begin
+        get :read, :id => id
+        assert_response :not_found, "should get a not found"
+      rescue ActionController::RoutingError => ex
+        assert_match /No route matches/, ex.to_s
+      end
+    end
+  end
+  

   ##
   # test that the user who opened a change can close it
   def test_close
   ##
   # test that the user who opened a change can close it
   def test_close


@@ -119,7 +205,7 @@ class ChangesetControllerTest < ActionController::TestCase
     # test that it really is closed now
     cs = Changeset.find(cs_id)
     assert(!cs.is_open?, 
     # test that it really is closed now
     cs = Changeset.find(cs_id)
     assert(!cs.is_open?, 

-           "changeset should be closed now (#{cs.closed_at} > #{Time.now}.")
+           "changeset should be closed now (#{cs.closed_at} > #{Time.now.getutc}.")

   end
 
   ##
   end
 
   ##


@@ -131,6 +217,46 @@ class ChangesetControllerTest < ActionController::TestCase
     assert_response :conflict
     assert_equal "The user doesn't own that changeset", @response.body
   end
     assert_response :conflict
     assert_equal "The user doesn't own that changeset", @response.body
   end

+  
+  ##
+  # test that you can't close using another method
+  def test_close_method_invalid
+    basic_authorization users(:public_user).email, "test"
+    
+    cs_id = changesets(:public_user_first_change).id
+    get :close, :id => cs_id
+    assert_response :method_not_allowed
+    
+    post :close, :id => cs_id
+    assert_response :method_not_allowed
+  end
+  
+  ##
+  # check that you can't close a changeset that isn't found
+  def test_close_not_found
+    cs_ids = [0, -132, "123"]
+    
+    # First try to do it with no auth
+    cs_ids.each do |id|
+      begin
+        put :close, :id => id
+        assert_response :unauthorized, "Shouldn't be able close the non-existant changeset #{id}, when not authorized"
+      rescue ActionController::RoutingError => ex
+        assert_match /No route matches/, ex.to_s
+      end
+    end
+    
+    # Now try with auth
+    basic_authorization users(:public_user).email, "test"
+    cs_ids.each do |id|
+      begin
+        put :close, :id => id
+        assert_response :not_found, "The changeset #{id} doesn't exist, so can't be closed"
+      rescue ActionController::RoutingError => ex
+        assert_match /No route matches/, ex.to_s
+      end
+    end
+  end

 
   ##
   # upload something simple, but valid and check that it can 
 
   ##
   # upload something simple, but valid and check that it can 


@@ -378,6 +504,57 @@ EOF
     end
   end
 
     end
   end
 

+  def test_upload_large_changeset
+    basic_authorization users(:public_user).email, "test"
+
+    # create a changeset
+    content "<osm><changeset/></osm>"
+    put :create
+    assert_response :success, "Should be able to create a changeset: #{@response.body}"
+    changeset_id = @response.body.to_i
+    
+    # upload some widely-spaced nodes, spiralling positive and negative to cause 
+    # largest bbox over-expansion possible.
+    diff = <<EOF
+<osmChange>
+ <create>
+  <node id='-1' lon='-20' lat='-10' changeset='#{changeset_id}'/>
+  <node id='-10' lon='20'  lat='10' changeset='#{changeset_id}'/>
+  <node id='-2' lon='-40' lat='-20' changeset='#{changeset_id}'/>
+  <node id='-11' lon='40'  lat='20' changeset='#{changeset_id}'/>
+  <node id='-3' lon='-60' lat='-30' changeset='#{changeset_id}'/>
+  <node id='-12' lon='60'  lat='30' changeset='#{changeset_id}'/>
+  <node id='-4' lon='-80' lat='-40' changeset='#{changeset_id}'/>
+  <node id='-13' lon='80'  lat='40' changeset='#{changeset_id}'/>
+  <node id='-5' lon='-100' lat='-50' changeset='#{changeset_id}'/>
+  <node id='-14' lon='100'  lat='50' changeset='#{changeset_id}'/>
+  <node id='-6' lon='-120' lat='-60' changeset='#{changeset_id}'/>
+  <node id='-15' lon='120'  lat='60' changeset='#{changeset_id}'/>
+  <node id='-7' lon='-140' lat='-70' changeset='#{changeset_id}'/>
+  <node id='-16' lon='140'  lat='70' changeset='#{changeset_id}'/>
+  <node id='-8' lon='-160' lat='-80' changeset='#{changeset_id}'/>
+  <node id='-17' lon='160'  lat='80' changeset='#{changeset_id}'/>
+  <node id='-9' lon='-179.9' lat='-89.9' changeset='#{changeset_id}'/>
+  <node id='-18' lon='179.9'  lat='89.9' changeset='#{changeset_id}'/>
+ </create>
+</osmChange>
+EOF
+
+    # upload it, which used to cause an error like "PGError: ERROR: 
+    # integer out of range" (bug #2152). but shouldn't any more.
+    content diff
+    post :upload, :id => changeset_id
+    assert_response :success, 
+      "can't upload a spatially-large diff to changeset: #{@response.body}"
+
+    # check that the changeset bbox is within bounds
+    cs = Changeset.find(changeset_id)
+    assert cs.min_lon >= -180 * SCALE, "Minimum longitude (#{cs.min_lon / SCALE}) should be >= -180 to be valid."
+    assert cs.max_lon <=  180 * SCALE, "Maximum longitude (#{cs.max_lon / SCALE}) should be <= 180 to be valid."
+    assert cs.min_lat >=  -90 * SCALE, "Minimum latitude (#{cs.min_lat / SCALE}) should be >= -90 to be valid."
+    assert cs.max_lat >=   90 * SCALE, "Maximum latitude (#{cs.max_lat / SCALE}) should be <= 90 to be valid."
+  end
+

   ##
   # test that deleting stuff in a transaction doesn't bypass the checks
   # to ensure that used elements are not deleted.
   ##
   # test that deleting stuff in a transaction doesn't bypass the checks
   # to ensure that used elements are not deleted.


@@ -397,6 +574,7 @@ EOF
     post :upload, :id => 2
     assert_response :precondition_failed, 
       "shouldn't be able to upload a invalid deletion diff: #{@response.body}"
     post :upload, :id => 2
     assert_response :precondition_failed, 
       "shouldn't be able to upload a invalid deletion diff: #{@response.body}"

+    assert_equal "Precondition failed: Way 3 is still used by relations 1.", @response.body

 
     # check that nothing was, in fact, deleted
     assert_equal true, Node.find(current_nodes(:node_used_by_relationship).id).visible
 
     # check that nothing was, in fact, deleted
     assert_equal true, Node.find(current_nodes(:node_used_by_relationship).id).visible


@@ -404,6 +582,81 @@ EOF
     assert_equal true, Relation.find(current_relations(:visible_relation).id).visible
   end
 
     assert_equal true, Relation.find(current_relations(:visible_relation).id).visible
   end
 

+  ##
+  # test that a conditional delete of an in use object works.
+  def test_upload_delete_if_unused
+    basic_authorization users(:public_user).email, "test"
+
+    diff = XML::Document.new
+    diff.root = XML::Node.new "osmChange"
+    delete = XML::Node.new "delete"
+    diff.root << delete
+    delete["if-unused"] = ""
+    delete << current_relations(:public_used_relation).to_xml_node
+    delete << current_ways(:used_way).to_xml_node
+    delete << current_nodes(:node_used_by_relationship).to_xml_node
+
+    # upload it
+    content diff
+    post :upload, :id => 2
+    assert_response :success, 
+      "can't do a conditional delete of in use objects: #{@response.body}"
+
+    # check the returned payload
+    assert_select "diffResult[version=#{API_VERSION}][generator=\"OpenStreetMap server\"]", 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 current_nodes(:node_used_by_relationship).id, doc.find("//diffResult/node").first["old_id"].to_i
+    assert_equal current_ways(:used_way).id, doc.find("//diffResult/way").first["old_id"].to_i
+    assert_equal current_relations(:public_used_relation).id, doc.find("//diffResult/relation").first["old_id"].to_i
+
+    # check the new IDs are all present and unchanged
+    assert_equal current_nodes(:node_used_by_relationship).id, doc.find("//diffResult/node").first["new_id"].to_i
+    assert_equal current_ways(:used_way).id, doc.find("//diffResult/way").first["new_id"].to_i
+    assert_equal current_relations(:public_used_relation).id, doc.find("//diffResult/relation").first["new_id"].to_i
+
+    # check the new versions are all present and unchanged
+    assert_equal current_nodes(:node_used_by_relationship).version, doc.find("//diffResult/node").first["new_version"].to_i
+    assert_equal current_ways(:used_way).version, doc.find("//diffResult/way").first["new_version"].to_i
+    assert_equal current_relations(:public_used_relation).version, doc.find("//diffResult/relation").first["new_version"].to_i
+
+    # check that nothing was, in fact, deleted
+    assert_equal true, Node.find(current_nodes(:node_used_by_relationship).id).visible
+    assert_equal true, Way.find(current_ways(:used_way).id).visible
+    assert_equal true, Relation.find(current_relations(:public_used_relation).id).visible
+  end
+
+  ##
+  # upload an element with a really long tag value
+  def test_upload_invalid_too_long_tag
+    basic_authorization users(:public_user).email, "test"
+    cs_id = changesets(:public_user_first_change).id
+
+    # simple diff to create a node way and relation using placeholders
+    diff = <<EOF
+<osmChange>
+ <create>
+  <node id='-1' lon='0' lat='0' changeset='#{cs_id}'>
+   <tag k='foo' v='#{"x"*256}'/>
+  </node>
+ </create>
+</osmChange>
+EOF
+
+    # upload it
+    content diff
+    post :upload, :id => cs_id
+    assert_response :bad_request, 
+      "shoudln't be able to upload too long a tag to changeset: #{@response.body}"
+
+  end
+    

   ##
   # upload something which creates new objects and inserts them into
   # existing containers using placeholders.
   ##
   # upload something which creates new objects and inserts them into
   # existing containers using placeholders.


@@ -603,7 +856,7 @@ EOF
   content diff
   post :upload, :id => cs_id
   assert_response :bad_request, "Shouldn't be able to upload a diff with the action ping"
   content diff
   post :upload, :id => cs_id
   assert_response :bad_request, "Shouldn't be able to upload a diff with the action ping"

-  assert_equal @response.body, "Unknown action ping, choices are create, modify, delete."
+  assert_equal @response.body, "Unknown action ping, choices are create, modify, delete"

   end
 
   ##
   end
 
   ##


@@ -906,6 +1159,32 @@ EOF
     end
   end
 
     end
   end
 

+  ##
+  # test that the X-Error-Format header works to request XML errors
+  def test_upload_xml_errors
+    basic_authorization users(:public_user).email, "test"
+
+    # try and delete a node that is in use
+    diff = XML::Document.new
+    diff.root = XML::Node.new "osmChange"
+    delete = XML::Node.new "delete"
+    diff.root << delete
+    delete << current_nodes(:node_used_by_relationship).to_xml_node
+
+    # upload it
+    content diff
+    error_format "xml"
+    post :upload, :id => 2
+    assert_response :success, 
+      "failed to return error in XML format"
+
+    # check the returned payload
+    assert_select "osmError[version=#{API_VERSION}][generator=\"OpenStreetMap server\"]", 1
+    assert_select "osmError>status", 1
+    assert_select "osmError>message", 1
+
+  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.


@@ -1080,6 +1359,21 @@ EOF
     assert_select "osmChange>modify>way", 1
   end
 
     assert_select "osmChange>modify>way", 1
   end
 

+  def test_changeset_download
+    get :download, :id => changesets(:normal_user_first_change).id
+    assert_response :success
+    assert_template nil
+    #print @response.body
+    # FIXME needs more assert_select tests
+    assert_select "osmChange[version='#{API_VERSION}'][generator='#{GENERATOR}']" do
+      assert_select "create", :count => 5
+      assert_select "create>node[id=#{nodes(:used_node_2).node_id}][visible=#{nodes(:used_node_2).visible?}][version=#{nodes(:used_node_2).version}]" do
+        assert_select "tag[k=#{node_tags(:t3).k}][v=#{node_tags(:t3).v}]"
+      end
+      assert_select "create>node[id=#{nodes(:visible_node).node_id}]"
+    end
+  end
+  

   ##
   # check that the bounding box of a changeset gets updated correctly
   ## FIXME: This should really be moded to a integration test due to the with_controller
   ##
   # check that the bounding box of a changeset gets updated correctly
   ## FIXME: This should really be moded to a integration test due to the with_controller


@@ -1161,6 +1455,37 @@ EOF
     check_after_include(changeset_id, -1, -1, [-1, -1,  4,  3])
     check_after_include(changeset_id, -2,  5, [-2, -1,  4,  5])
   end
     check_after_include(changeset_id, -1, -1, [-1, -1,  4,  3])
     check_after_include(changeset_id, -2,  5, [-2, -1,  4,  5])
   end

+  
+  ##
+  # test that a not found, wrong method with the expand bbox works as expected
+  def test_changeset_expand_bbox_error
+    basic_authorization users(:public_user).display_name, "test"
+    
+    # create a new changeset
+    content "<osm><changeset/></osm>"
+    put :create
+    assert_response :success, "Creating of changeset failed."
+    changeset_id = @response.body.to_i
+    
+    lon=58.2
+    lat=-0.45
+    
+    # Try and put
+    content "<osm><node lon='#{lon}' lat='#{lat}'/></osm>"
+    put :expand_bbox, :id => changeset_id
+    assert_response :method_not_allowed, "shouldn't be able to put a bbox expand"
+
+    # Try to get the update
+    content "<osm><node lon='#{lon}' lat='#{lat}'/></osm>"
+    get :expand_bbox, :id => changeset_id
+    assert_response :method_not_allowed, "shouldn't be able to get a bbox expand"
+    
+    # Try to use a hopefully missing changeset
+    content "<osm><node lon='#{lon}' lat='#{lat}'/></osm>"
+    post :expand_bbox, :id => changeset_id+13245
+    assert_response :not_found, "shouldn't be able to do a bbox expand on a nonexistant changeset"
+
+  end

 
   ##
   # test the query functionality of changesets
 
   ##
   # test the query functionality of changesets


@@ -1173,16 +1498,32 @@ EOF
     assert_response :success, "can't get changesets in bbox"
     assert_changesets [1]
 
     assert_response :success, "can't get changesets in bbox"
     assert_changesets [1]
 

+    # not found when looking for changesets of non-existing users
+    get :query, :user => User.maximum(:id) + 1
+    assert_response :not_found
+    get :query, :display_name => " "
+    assert_response :not_found
+

     # can't get changesets of user 1 without authenticating
     get :query, :user => users(:normal_user).id
     # can't get changesets of user 1 without authenticating
     get :query, :user => users(:normal_user).id

-    assert_response :not_found, "shouldn't be able to get changesets by non-public user"
+    assert_response :not_found, "shouldn't be able to get changesets by non-public user (ID)"
+    get :query, :display_name => users(:normal_user).display_name
+    assert_response :not_found, "shouldn't be able to get changesets by non-public user (name)"

 
     # but this should work
     basic_authorization "test@openstreetmap.org", "test"
     get :query, :user => users(:normal_user).id
 
     # but this should work
     basic_authorization "test@openstreetmap.org", "test"
     get :query, :user => users(:normal_user).id

-    assert_response :success, "can't get changesets by user"
+    assert_response :success, "can't get changesets by user ID"

     assert_changesets [1,3,6]
 
     assert_changesets [1,3,6]
 

+    get :query, :display_name => users(:normal_user).display_name
+    assert_response :success, "can't get changesets by user name"
+    assert_changesets [1,3,6]
+
+    # check that the correct error is given when we provide both UID and name
+    get :query, :user => users(:normal_user).id, :display_name => users(:normal_user).display_name
+    assert_response :bad_request, "should be a bad request to have both ID and name specified"
+

     get :query, :user => users(:normal_user).id, :open => true
     assert_response :success, "can't get changesets by user and open"
     assert_changesets [1]
     get :query, :user => users(:normal_user).id, :open => true
     assert_response :success, "can't get changesets by user and open"
     assert_changesets [1]


@@ -1197,11 +1538,23 @@ EOF
 
     get :query, :time => '2007-12-31T23:59Z,2008-01-01T00:01Z'
     assert_response :success, "can't get changesets by time-range"
 
     get :query, :time => '2007-12-31T23:59Z,2008-01-01T00:01Z'
     assert_response :success, "can't get changesets by time-range"

-    assert_changesets [1,4,5,6]
+    assert_changesets [1,5,6]

 
     get :query, :open => 'true'
     assert_response :success, "can't get changesets by open-ness"
     assert_changesets [1,2,4]
 
     get :query, :open => 'true'
     assert_response :success, "can't get changesets by open-ness"
     assert_changesets [1,2,4]

+
+    get :query, :closed => 'true'
+    assert_response :success, "can't get changesets by closed-ness"
+    assert_changesets [3,5,6,7]
+
+    get :query, :closed => 'true', :user => users(:normal_user).id
+    assert_response :success, "can't get changesets by closed-ness and user"
+    assert_changesets [3,6]
+
+    get :query, :closed => 'true', :user => users(:public_user).id
+    assert_response :success, "can't get changesets by closed-ness and user"
+    assert_changesets [7]

   end
 
   ##
   end
 
   ##


@@ -1372,21 +1725,89 @@ EOF
            "element limit.")
   end
   
            "element limit.")
   end
   

+  ##

   # This should display the last 20 changesets closed.
   def test_list
   # This should display the last 20 changesets closed.
   def test_list

-    @changesets = Changeset.find(:all, :order => "created_at DESC", :conditions => ['min_lat IS NOT NULL'], :limit=> 20)
-    assert @changesets.size <= 20
-    get :list
+    changesets = Changeset.find(:all, :order => "created_at DESC", :conditions => ['num_changes > 0'], :limit=> 20)
+    assert changesets.size <= 20
+    get :list, {:format => "html"}

     assert_response :success
     assert_template "list"
     # Now check that all 20 (or however many were returned) changesets are in the html
     assert_response :success
     assert_template "list"
     # Now check that all 20 (or however many were returned) changesets are in the html

-    assert_select "h1", :text => "Recent Changes", :count => 1
-    assert_select "table[id='keyvalue'] tr", :count => @changesets.size + 1
-    @changesets.each do |changeset|
+    assert_select "h1", :text => "Changesets", :count => 1
+    assert_select "div[id='changeset_list'] ul", :count => changesets.size
+    changesets.each do |changeset|

       # FIXME this test needs rewriting - test for table contents
     end
   end
   
       # FIXME this test needs rewriting - test for table contents
     end
   end
   

+  ##
+  # Checks the display of the user changesets listing
+  def test_list_user
+    user = users(:public_user)
+    get :list, {:format => "html", :display_name => user.display_name}
+    assert_response :success
+    assert_template "changeset/_user"
+    ## FIXME need to add more checks to see which if edits are actually shown if your data is public
+  end
+  
+  ##
+  # Check the not found of the list user changesets
+  def test_list_user_not_found
+    get :list, {:format => "html", :display_name => "Some random user"}
+    assert_response :not_found
+    assert_template 'user/no_such_user'
+  end
+      
+  ##
+  # This should display the last 20 changesets closed.
+  def test_feed
+    changesets = Changeset.find(:all, :order => "created_at DESC", :conditions => ['num_changes > 0'], :limit=> 20)
+    assert changesets.size <= 20
+    get :feed, {:format => "atom"}
+    assert_response :success
+    assert_template "list"
+    # Now check that all 20 (or however many were returned) changesets are in the html
+    assert_select "feed", :count => 1
+    assert_select "entry", :count => changesets.size
+    changesets.each do |changeset|
+      # FIXME this test needs rewriting - test for feed contents
+    end
+  end
+
+  ##
+  # Checks the display of the user changesets feed
+  def test_feed_user
+    user = users(:public_user)
+    get :feed, {:format => "atom", :display_name => user.display_name}
+    assert_response :success
+    assert_template "changeset/_user"
+    ## FIXME need to add more checks to see which if edits are actually shown if your data is public
+  end
+
+  ##
+  # Check the not found of the user changesets feed
+  def test_feed_user_not_found
+    get :feed, {:format => "atom", :display_name => "Some random user"}
+    assert_response :not_found
+  end
+  
+  ##
+  # check that the changeset download for a changeset with a redacted
+  # element in it doesn't contain that element.
+  def test_diff_download_redacted
+    changeset_id = changesets(:public_user_first_change).id
+
+    get :download, :id => changeset_id
+    assert_response :success
+
+    assert_select "osmChange", 1
+    # this changeset contains node 17 in versions 1 & 2, but 1 should
+    # be hidden.
+    assert_select "osmChange node[id=17]", 1
+    assert_select "osmChange node[id=17][version=1]", 0
+  end
+

   #------------------------------------------------------------
   # utility functions
   #------------------------------------------------------------
   #------------------------------------------------------------
   # utility functions
   #------------------------------------------------------------