X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/183ffc78648938ca079f7ea5f899d3e71e829333..5449cf4adcc1fad4b9f43426e6d3e4a8f65e6fbb:/test/functional/changeset_controller_test.rb

diff --git a/test/functional/changeset_controller_test.rb b/test/functional/changeset_controller_test.rb
index 31ade9fce..932d685bb 100644
--- a/test/functional/changeset_controller_test.rb
+++ b/test/functional/changeset_controller_test.rb
@@ -4,14 +4,6 @@ require 'changeset_controller'
 class ChangesetControllerTest < ActionController::TestCase
   api_fixtures
 
-  def basic_authorization(user, pass)
-    @request.env["HTTP_AUTHORIZATION"] = "Basic %s" % Base64.encode64("#{user}:#{pass}")
-  end
-
-  def content(c)
-    @request.env["RAW_POST_DATA"] = c.to_s
-  end
-  
   # -----------------------
   # Test simple changeset creation
   # -----------------------
@@ -26,7 +18,19 @@ class ChangesetControllerTest < ActionController::TestCase
     put :create
     
     assert_response :success, "Creation of changeset did not return sucess status"
-    newid = @response.body
+    newid = @response.body.to_i
+
+    # check end time, should be an hour ahead of creation time
+    cs = Changeset.find(newid)
+    duration = cs.closed_at - cs.created_at
+    # the difference can either be a rational, or a floating point number
+    # of seconds, depending on the code path taken :-(
+    if duration.class == Rational
+      assert_equal Rational(1,24), duration , "initial idle timeout should be an hour (#{cs.created_at} -> #{cs.closed_at})"
+    else
+      # must be number of seconds...
+      assert_equal 3600, duration.round, "initial idle timeout should be an hour (#{cs.created_at} -> #{cs.closed_at})"
+    end
   end
   
   def test_create_invalid
@@ -36,12 +40,53 @@ class ChangesetControllerTest < ActionController::TestCase
     assert_response :bad_request, "creating a invalid changeset should fail"
   end
 
+  def test_create_invalid_no_content
+    basic_authorization "test@openstreetmap.org", "test"
+    put :create
+    assert_response :bad_request, "creating a changeset with no content should fail"
+  end
+  
+  def test_create_wrong_method
+    basic_authorization "test@openstreetmap.org", "test"
+    get :create
+    assert_response :method_not_allowed
+  end
+    
+  ##
+  # check that the changeset can be read and returns the correct
+  # document structure.
   def test_read
+    changeset_id = changesets(:normal_user_first_change).id
+    get :read, :id => changeset_id
+    assert_response :success, "cannot get first changeset"
     
+    assert_select "osm[version=#{API_VERSION}][generator=\"OpenStreetMap server\"]", 1
+    assert_select "osm>changeset[id=#{changeset_id}]", 1
   end
   
+  ##
+  # test that the user who opened a change can close it
   def test_close
-    
+    basic_authorization "test@openstreetmap.org", "test"
+
+    cs_id = changesets(:normal_user_first_change).id
+    put :close, :id => cs_id
+    assert_response :success
+
+    # 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}.")
+  end
+
+  ##
+  # test that a different user can't close another user's changeset
+  def test_close_invalid
+    basic_authorization "test@example.com", "test"
+
+    put :close, :id => changesets(:normal_user_first_change).id
+    assert_response :conflict
+    assert_equal "The user doesn't own that changeset", @response.body
   end
 
   ##
@@ -116,26 +161,26 @@ EOF
       "can't upload a simple valid creation to changeset: #{@response.body}"
 
     # check the returned payload
-    assert_select "osm[version=#{API_VERSION}][generator=\"OpenStreetMap server\"]", 1
-    assert_select "osm>node", 1
-    assert_select "osm>way", 1
-    assert_select "osm>relation", 1
+    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
 
     # inspect the response to find out what the new element IDs are
     doc = XML::Parser.string(@response.body).parse
-    new_node_id = doc.find("//osm/node").first["new_id"].to_i
-    new_way_id = doc.find("//osm/way").first["new_id"].to_i
-    new_rel_id = doc.find("//osm/relation").first["new_id"].to_i
+    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("//osm/node").first["old_id"].to_i
-    assert_equal -1, doc.find("//osm/way").first["old_id"].to_i
-    assert_equal -1, doc.find("//osm/relation").first["old_id"].to_i
+    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
 
     # check the versions are present and equal one
-    assert_equal 1, doc.find("//osm/node").first["new_version"].to_i
-    assert_equal 1, doc.find("//osm/way").first["new_version"].to_i
-    assert_equal 1, doc.find("//osm/relation").first["new_version"].to_i
+    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 that the changes made it into the database
     assert_equal 2, Node.find(new_node_id).tags.size, "new node should have two tags"
@@ -164,6 +209,11 @@ EOF
     assert_response :success, 
       "can't upload a deletion diff to changeset: #{@response.body}"
 
+    # check the response is well-formed
+    assert_select "diffResult>node", 1
+    assert_select "diffResult>way", 1
+    assert_select "diffResult>relation", 2
+
     # check that everything was deleted
     assert_equal false, Node.find(current_nodes(:node_used_by_relationship).id).visible
     assert_equal false, Way.find(current_ways(:used_way).id).visible
@@ -171,6 +221,45 @@ EOF
     assert_equal false, Relation.find(current_relations(:used_relation).id).visible
   end
 
+  ##
+  # test uploading a delete with no lat/lon, as they are optional in
+  # the osmChange spec.
+  def test_upload_nolatlon_delete
+    basic_authorization "test@openstreetmap.org", "test"
+
+    node = current_nodes(:visible_node)
+    cs = changesets(:normal_user_first_change)
+    diff = "<osmChange><delete><node id='#{node.id}' version='#{node.version}' changeset='#{cs.id}'/></delete></osmChange>"
+
+    # upload it
+    content diff
+    post :upload, :id => cs.id
+    assert_response :success, 
+      "can't upload a deletion diff to changeset: #{@response.body}"
+
+    # check the response is well-formed
+    assert_select "diffResult>node", 1
+
+    # check that everything was deleted
+    assert_equal false, Node.find(node.id).visible
+  end
+
+  def test_repeated_changeset_create
+    30.times do
+      basic_authorization "test@openstreetmap.org", "test"
+    
+      # create a temporary changeset
+      content "<osm><changeset>" +
+        "<tag k='created_by' v='osm test suite checking changesets'/>" + 
+        "</changeset></osm>"
+      assert_difference('Changeset.count', 1) do
+        put :create
+      end
+      assert_response :success
+      changeset_id = @response.body.to_i
+    end
+  end
+
   ##
   # test that deleting stuff in a transaction doesn't bypass the checks
   # to ensure that used elements are not deleted.
@@ -233,14 +322,14 @@ EOF
       "can't upload a complex diff to changeset: #{@response.body}"
 
     # check the returned payload
-    assert_select "osm[version=#{API_VERSION}][generator=\"#{GENERATOR}\"]", 1
-    assert_select "osm>node", 1
-    assert_select "osm>way", 1
-    assert_select "osm>relation", 1
+    assert_select "diffResult[version=#{API_VERSION}][generator=\"#{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("//osm/node").first["new_id"].to_i
+    new_node_id = doc.find("//diffResult/node").first["new_id"].to_i
 
     # 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"
@@ -275,7 +364,7 @@ EOF
   </relation>
  </modify>
  <create>
-  <node id='-1' changeset='4'>
+  <node id='-1' lon='0' lat='0' changeset='4'>
    <tag k='foo' v='bar'/>
    <tag k='baz' v='bat'/>
   </node>
@@ -326,6 +415,11 @@ EOF
     post :upload, :id => 1
     assert_response :success, 
       "can't upload multiple versions of an element in a diff: #{@response.body}"
+    
+    # check the response is well-formed. its counter-intuitive, but the
+    # API will return multiple elements with the same ID and different
+    # version numbers for each change we made.
+    assert_select "diffResult>node", 8
   end
 
   ##
@@ -388,6 +482,193 @@ EOF
   assert_equal @response.body, "Unknown action ping, choices are create, modify, delete."
   end
 
+  ##
+  # upload a valid changeset which has a mixture of whitespace
+  # to check a bug reported by ivansanchez (#1565).
+  def test_upload_whitespace_valid
+    basic_authorization "test@openstreetmap.org", "test"
+
+    diff = <<EOF
+<osmChange>
+ <modify><node id='1' lon='0' lat='0' changeset='1' 
+  version='1'></node>
+  <node id='1' lon='1' lat='1' changeset='1' version='2'><tag k='k' v='v'/></node></modify>
+ <modify>
+  <relation id='1' changeset='1' version='1'><member 
+   type='way' role='some' ref='3'/><member 
+    type='node' role='some' ref='5'/>
+   <member type='relation' role='some' ref='3'/>
+  </relation>
+ </modify></osmChange>
+EOF
+
+    # upload it
+    content diff
+    post :upload, :id => 1
+    assert_response :success, 
+      "can't upload a valid diff with whitespace variations to changeset: #{@response.body}"
+
+    # check the response is well-formed
+    assert_select "diffResult>node", 2
+    assert_select "diffResult>relation", 1
+
+    # check that the changes made it into the database
+    assert_equal 1, Node.find(1).tags.size, "node 1 should now have one tag"
+    assert_equal 0, Relation.find(1).tags.size, "relation 1 should now have no tags"
+  end
+
+  ##
+  # upload a valid changeset which has a mixture of whitespace
+  # to check a bug reported by ivansanchez.
+  def test_upload_reuse_placeholder_valid
+    basic_authorization "test@openstreetmap.org", "test"
+
+    diff = <<EOF
+<osmChange>
+ <create>
+  <node id='-1' lon='0' lat='0' changeset='1'>
+   <tag k="foo" v="bar"/>
+  </node>
+ </create>
+ <modify>
+  <node id='-1' lon='1' lat='1' changeset='1' version='1'/>
+ </modify>
+ <delete>
+  <node id='-1' lon='2' lat='2' changeset='1' version='2'/>
+ </delete>
+</osmChange>
+EOF
+
+    # upload it
+    content diff
+    post :upload, :id => 1
+    assert_response :success, 
+      "can't upload a valid diff with re-used placeholders to changeset: #{@response.body}"
+
+    # check the response is well-formed
+    assert_select "diffResult>node", 3
+    assert_select "diffResult>node[old_id=-1]", 3
+  end
+
+  ##
+  # test what happens if a diff upload re-uses placeholder IDs in an
+  # illegal way.
+  def test_upload_placeholder_invalid
+    basic_authorization "test@openstreetmap.org", "test"
+
+    diff = <<EOF
+<osmChange>
+ <create>
+  <node id='-1' lon='0' lat='0' changeset='1' version='1'/>
+  <node id='-1' lon='1' lat='1' changeset='1' version='1'/>
+  <node id='-1' lon='2' lat='2' changeset='1' version='2'/>
+ </create>
+</osmChange>
+EOF
+
+    # upload it
+    content diff
+    post :upload, :id => 1
+    assert_response :bad_request, 
+      "shouldn't be able to re-use placeholder IDs"
+  end
+
+  ##
+  # test what happens if a diff is uploaded containing only a node
+  # move.
+  def test_upload_node_move
+    basic_authorization "test@openstreetmap.org", "test"
+
+    content "<osm><changeset>" +
+      "<tag k='created_by' v='osm test suite checking changesets'/>" + 
+      "</changeset></osm>"
+    put :create
+    assert_response :success
+    changeset_id = @response.body.to_i
+
+    old_node = current_nodes(:visible_node)
+
+    diff = XML::Document.new
+    diff.root = XML::Node.new "osmChange"
+    modify = XML::Node.new "modify"
+    xml_old_node = old_node.to_xml_node
+    xml_old_node["lat"] = (2.0).to_s
+    xml_old_node["lon"] = (2.0).to_s
+    xml_old_node["changeset"] = changeset_id.to_s
+    modify << xml_old_node
+    diff.root << modify
+
+    # upload it
+    content diff
+    post :upload, :id => changeset_id
+    assert_response :success, 
+      "diff should have uploaded OK"
+
+    # check the bbox
+    changeset = Changeset.find(changeset_id)
+    assert_equal 1*SCALE, changeset.min_lon, "min_lon should be 1 degree"
+    assert_equal 2*SCALE, changeset.max_lon, "max_lon should be 2 degrees"
+    assert_equal 1*SCALE, changeset.min_lat, "min_lat should be 1 degree"
+    assert_equal 2*SCALE, changeset.max_lat, "max_lat should be 2 degrees"
+  end
+
+  ##
+  # test what happens if a diff is uploaded adding a node to a way.
+  def test_upload_way_extend
+    basic_authorization "test@openstreetmap.org", "test"
+
+    content "<osm><changeset>" +
+      "<tag k='created_by' v='osm test suite checking changesets'/>" + 
+      "</changeset></osm>"
+    put :create
+    assert_response :success
+    changeset_id = @response.body.to_i
+
+    old_way = current_ways(:visible_way)
+
+    diff = XML::Document.new
+    diff.root = XML::Node.new "osmChange"
+    modify = XML::Node.new "modify"
+    xml_old_way = old_way.to_xml_node
+    nd_ref = XML::Node.new "nd"
+    nd_ref["ref"] = current_nodes(:visible_node).id.to_s
+    xml_old_way << nd_ref
+    xml_old_way["changeset"] = changeset_id.to_s
+    modify << xml_old_way
+    diff.root << modify
+
+    # upload it
+    content diff
+    post :upload, :id => changeset_id
+    assert_response :success, 
+      "diff should have uploaded OK"
+
+    # check the bbox
+    changeset = Changeset.find(changeset_id)
+    assert_equal 1*SCALE, changeset.min_lon, "min_lon should be 1 degree"
+    assert_equal 3*SCALE, changeset.max_lon, "max_lon should be 3 degrees"
+    assert_equal 1*SCALE, changeset.min_lat, "min_lat should be 1 degree"
+    assert_equal 3*SCALE, changeset.max_lat, "max_lat should be 3 degrees"
+  end
+
+  ##
+  # test for more issues in #1568
+  def test_upload_empty_invalid
+    basic_authorization "test@openstreetmap.org", "test"
+
+    [ "<osmChange/>",
+      "<osmChange></osmChange>",
+      "<osmChange><modify/></osmChange>",
+      "<osmChange><modify></modify></osmChange>"
+    ].each do |diff|
+      # upload it
+      content diff
+      post :upload, :id => 1
+      assert_response(:success, "should be able to upload " +
+                      "empty changeset: " + diff)
+    end
+  end
+
   ##
   # when we make some simple changes we get the same changes back from the 
   # diff download.
@@ -432,6 +713,67 @@ EOF
     assert_select "osmChange>modify>node", 8
   end
   
+  ##
+  # culled this from josm to ensure that nothing in the way that josm
+  # is formatting the request is causing it to fail.
+  #
+  # NOTE: the error turned out to be something else completely!
+  def test_josm_upload
+    basic_authorization(users(:normal_user).email, "test")
+
+    # create a temporary changeset
+    content "<osm><changeset>" +
+      "<tag k='created_by' v='osm test suite checking changesets'/>" + 
+      "</changeset></osm>"
+    put :create
+    assert_response :success
+    changeset_id = @response.body.to_i
+
+    diff = <<OSM
+<osmChange version="0.6" generator="JOSM">
+<create version="0.6" generator="JOSM">
+  <node id='-1' visible='true' changeset='#{changeset_id}' lat='51.49619982187321' lon='-0.18722061869438314' />
+  <node id='-2' visible='true' changeset='#{changeset_id}' lat='51.496359883909605' lon='-0.18653093576241928' />
+  <node id='-3' visible='true' changeset='#{changeset_id}' lat='51.49598132358285' lon='-0.18719613290981638' />
+  <node id='-4' visible='true' changeset='#{changeset_id}' lat='51.4961591711078' lon='-0.18629015888084607' />
+  <node id='-5' visible='true' changeset='#{changeset_id}' lat='51.49582126021711' lon='-0.18708186591517145' />
+  <node id='-6' visible='true' changeset='#{changeset_id}' lat='51.49591018437858' lon='-0.1861432441734455' />
+  <node id='-7' visible='true' changeset='#{changeset_id}' lat='51.49560784152179' lon='-0.18694719410005425' />
+  <node id='-8' visible='true' changeset='#{changeset_id}' lat='51.49567389979617' lon='-0.1860289771788006' />
+  <node id='-9' visible='true' changeset='#{changeset_id}' lat='51.49543761398892' lon='-0.186820684213126' />
+  <way id='-10' action='modiy' visible='true' changeset='#{changeset_id}'>
+    <nd ref='-1' />
+    <nd ref='-2' />
+    <nd ref='-3' />
+    <nd ref='-4' />
+    <nd ref='-5' />
+    <nd ref='-6' />
+    <nd ref='-7' />
+    <nd ref='-8' />
+    <nd ref='-9' />
+    <tag k='highway' v='residential' />
+    <tag k='name' v='Foobar Street' />
+  </way>
+</create>
+</osmChange>
+OSM
+
+    # upload it
+    content diff
+    post :upload, :id => changeset_id
+    assert_response :success, 
+      "can't upload a diff from JOSM: #{@response.body}"
+    
+    get :download, :id => changeset_id
+    assert_response :success
+
+    assert_select "osmChange", 1
+    assert_select "osmChange>create>node", 9
+    assert_select "osmChange>create>way", 1
+    assert_select "osmChange>create>way>nd", 9
+    assert_select "osmChange>create>way>tag", 2
+  end
+
   ##
   # when we make some complex changes we get the same changes back from the 
   # diff download.
@@ -487,5 +829,331 @@ EOF
     assert_select "osmChange>modify>node", 1
     assert_select "osmChange>modify>way", 1
   end
+
+  ##
+  # check that the bounding box of a changeset gets updated correctly
+  def test_changeset_bbox
+    basic_authorization "test@openstreetmap.org", "test"
+
+    # create a new changeset
+    content "<osm><changeset/></osm>"
+    put :create
+    assert_response :success, "Creating of changeset failed."
+    changeset_id = @response.body.to_i
+    
+    # add a single node to it
+    with_controller(NodeController.new) do
+      content "<osm><node lon='1' lat='2' changeset='#{changeset_id}'/></osm>"
+      put :create
+      assert_response :success, "Couldn't create node."
+    end
+
+    # get the bounding box back from the changeset
+    get :read, :id => changeset_id
+    assert_response :success, "Couldn't read back changeset."
+    assert_select "osm>changeset[min_lon=1.0]", 1
+    assert_select "osm>changeset[max_lon=1.0]", 1
+    assert_select "osm>changeset[min_lat=2.0]", 1
+    assert_select "osm>changeset[max_lat=2.0]", 1
+
+    # add another node to it
+    with_controller(NodeController.new) do
+      content "<osm><node lon='2' lat='1' changeset='#{changeset_id}'/></osm>"
+      put :create
+      assert_response :success, "Couldn't create second node."
+    end
+
+    # get the bounding box back from the changeset
+    get :read, :id => changeset_id
+    assert_response :success, "Couldn't read back changeset for the second time."
+    assert_select "osm>changeset[min_lon=1.0]", 1
+    assert_select "osm>changeset[max_lon=2.0]", 1
+    assert_select "osm>changeset[min_lat=1.0]", 1
+    assert_select "osm>changeset[max_lat=2.0]", 1
+
+    # add (delete) a way to it, which contains a point at (3,3)
+    with_controller(WayController.new) do
+      content update_changeset(current_ways(:visible_way).to_xml,
+                               changeset_id)
+      put :delete, :id => current_ways(:visible_way).id
+      assert_response :success, "Couldn't delete a way."
+    end
+
+    # get the bounding box back from the changeset
+    get :read, :id => changeset_id
+    assert_response :success, "Couldn't read back changeset for the third time."
+    # note that the 3.1 here is because of the bbox overexpansion
+    assert_select "osm>changeset[min_lon=1.0]", 1
+    assert_select "osm>changeset[max_lon=3.1]", 1
+    assert_select "osm>changeset[min_lat=1.0]", 1
+    assert_select "osm>changeset[max_lat=3.1]", 1    
+  end
+
+  ##
+  # test that the changeset :include method works as it should
+  def test_changeset_include
+    basic_authorization "test@openstreetmap.org", "test"
+
+    # create a new changeset
+    content "<osm><changeset/></osm>"
+    put :create
+    assert_response :success, "Creating of changeset failed."
+    changeset_id = @response.body.to_i
+
+    # NOTE: the include method doesn't over-expand, like inserting
+    # a real method does. this is because we expect the client to 
+    # know what it is doing!
+    check_after_include(changeset_id,  1,  1, [ 1,  1,  1,  1])
+    check_after_include(changeset_id,  3,  3, [ 1,  1,  3,  3])
+    check_after_include(changeset_id,  4,  2, [ 1,  1,  4,  3])
+    check_after_include(changeset_id,  2,  2, [ 1,  1,  4,  3])
+    check_after_include(changeset_id, -1, -1, [-1, -1,  4,  3])
+    check_after_include(changeset_id, -2,  5, [-2, -1,  4,  5])
+  end
+
+  ##
+  # test the query functionality of changesets
+  def test_query
+    get :query, :bbox => "-10,-10, 10, 10"
+    assert_response :success, "can't get changesets in bbox"
+    assert_changesets [1,4,6]
+
+    get :query, :bbox => "4.5,4.5,4.6,4.6"
+    assert_response :success, "can't get changesets in bbox"
+    assert_changesets [1]
+
+    # 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"
+
+    # 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_changesets [1,3,4,6]
+
+    get :query, :user => users(:normal_user).id, :open => true
+    assert_response :success, "can't get changesets by user and open"
+    assert_changesets [1,4]
+
+    get :query, :time => '2007-12-31'
+    assert_response :success, "can't get changesets by time-since"
+    assert_changesets [1,2,4,5,6]
+
+    get :query, :time => '2008-01-01T12:34Z'
+    assert_response :success, "can't get changesets by time-since with hour"
+    assert_changesets [1,2,4,5,6]
+
+    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]
+
+    get :query, :open => 'true'
+    assert_response :success, "can't get changesets by open-ness"
+    assert_changesets [1,2,4]
+  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 :query, :bbox => bbox
+      assert_response :bad_request, "'#{bbox}' isn't a bbox"
+    end
+
+    [ "now()",
+      "00-00-00",
+      ";drop table users;",
+      ",",
+      "-,-"
+      ].each do |time|
+      get :query, :time => time
+      assert_response :bad_request, "'#{time}' isn't a valid time range"
+    end
+
+    [ "me",
+      "foobar",
+      "-1",
+      "0"
+      ].each do |uid|
+      get :query, :user => uid
+      assert_response :bad_request, "'#{uid}' isn't a valid user ID"
+    end
+  end
+
+  ##
+  # check updating tags on a changeset
+  def test_changeset_update
+    changeset = changesets(:normal_user_first_change)
+    new_changeset = changeset.to_xml
+    new_tag = XML::Node.new "tag"
+    new_tag['k'] = "tagtesting"
+    new_tag['v'] = "valuetesting"
+    new_changeset.find("//osm/changeset").first << new_tag
+    content new_changeset
+
+    # try without any authorization
+    put :update, :id => changeset.id
+    assert_response :unauthorized
+
+    # try with the wrong authorization
+    basic_authorization "test@example.com", "test"
+    put :update, :id => changeset.id
+    assert_response :conflict
+
+    # now this should work...
+    basic_authorization "test@openstreetmap.org", "test"
+    put :update, :id => changeset.id
+    assert_response :success
+
+    assert_select "osm>changeset[id=#{changeset.id}]", 1
+    assert_select "osm>changeset>tag", 2
+    assert_select "osm>changeset>tag[k=tagtesting][v=valuetesting]", 1
+  end
+  
+  ##
+  # check that a user different from the one who opened the changeset
+  # can't modify it.
+  def test_changeset_update_invalid
+    basic_authorization "test@example.com", "test"
+
+    changeset = changesets(:normal_user_first_change)
+    new_changeset = changeset.to_xml
+    new_tag = XML::Node.new "tag"
+    new_tag['k'] = "testing"
+    new_tag['v'] = "testing"
+    new_changeset.find("//osm/changeset").first << new_tag
+
+    content new_changeset
+    put :update, :id => changeset.id
+    assert_response :conflict
+  end
+
+  ##
+  # check that a changeset can contain a certain max number of changes.
+  def test_changeset_limits
+    basic_authorization "test@openstreetmap.org", "test"
+
+    # open a new changeset
+    content "<osm><changeset/></osm>"
+    put :create
+    assert_response :success, "can't create a new changeset"
+    cs_id = @response.body.to_i
+
+    # start the counter just short of where the changeset should finish.
+    offset = 10
+    # alter the database to set the counter on the changeset directly, 
+    # otherwise it takes about 6 minutes to fill all of them.
+    changeset = Changeset.find(cs_id)
+    changeset.num_changes = Changeset::MAX_ELEMENTS - offset
+    changeset.save!
+
+    with_controller(NodeController.new) do
+      # create a new node
+      content "<osm><node changeset='#{cs_id}' lat='0.0' lon='0.0'/></osm>"
+      put :create
+      assert_response :success, "can't create a new node"
+      node_id = @response.body.to_i
+
+      get :read, :id => node_id
+      assert_response :success, "can't read back new node"
+      node_doc = XML::Parser.string(@response.body).parse
+      node_xml = node_doc.find("//osm/node").first
+
+      # loop until we fill the changeset with nodes
+      offset.times do |i|
+        node_xml['lat'] = rand.to_s
+        node_xml['lon'] = rand.to_s
+        node_xml['version'] = (i+1).to_s
+
+        content node_doc
+        put :update, :id => node_id
+        assert_response :success, "attempt #{i} should have succeeded"
+      end
+
+      # trying again should fail
+      node_xml['lat'] = rand.to_s
+      node_xml['lon'] = rand.to_s
+      node_xml['version'] = offset.to_s
+      
+      content node_doc
+      put :update, :id => node_id
+      assert_response :conflict, "final attempt should have failed"
+    end
+
+    changeset = Changeset.find(cs_id)
+    assert_equal Changeset::MAX_ELEMENTS + 1, changeset.num_changes
+
+    # check that the changeset is now closed as well
+    assert(!changeset.is_open?, 
+           "changeset should have been auto-closed by exceeding " + 
+           "element limit.")
+  end
+  
+  # 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
+    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|
+      # FIXME this test needs rewriting - test for table contents
+    end
+  end
   
+  #------------------------------------------------------------
+  # utility functions
+  #------------------------------------------------------------
+
+  ##
+  # boilerplate for checking that certain changesets exist in the
+  # output.
+  def assert_changesets(ids)
+    assert_select "osm>changeset", ids.size
+    ids.each do |id|
+      assert_select "osm>changeset[id=#{id}]", 1
+    end
+  end
+
+  ##
+  # call the include method and assert properties of the bbox
+  def check_after_include(changeset_id, lon, lat, bbox)
+    content "<osm><node lon='#{lon}' lat='#{lat}'/></osm>"
+    post :expand_bbox, :id => changeset_id
+    assert_response :success, "Setting include of changeset failed: #{@response.body}"
+
+    # check exactly one changeset
+    assert_select "osm>changeset", 1
+    assert_select "osm>changeset[id=#{changeset_id}]", 1
+
+    # check the bbox
+    doc = XML::Parser.string(@response.body).parse
+    changeset = doc.find("//osm/changeset").first
+    assert_equal bbox[0], changeset['min_lon'].to_f, "min lon"
+    assert_equal bbox[1], changeset['min_lat'].to_f, "min lat"
+    assert_equal bbox[2], changeset['max_lon'].to_f, "max lon"
+    assert_equal bbox[3], changeset['max_lat'].to_f, "max lat"
+  end
+
+  ##
+  # update the changeset_id of a way element
+  def update_changeset(xml, changeset_id)
+    xml_attr_rewrite(xml, 'changeset', changeset_id)
+  end
+
+  ##
+  # update an attribute in a way element
+  def xml_attr_rewrite(xml, name, value)
+    xml.find("//osm/way").first[name] = value.to_s
+    return xml
+  end
+
 end