X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/2927c6b6becec5dd0a88383ddff08872009c4ba9..71cb2c50fcaf29e2b933fc981e40a00223d94d34:/test/models/relation_test.rb

diff --git a/test/models/relation_test.rb b/test/models/relation_test.rb
index 2aaaaed8a..575813ad5 100644
--- a/test/models/relation_test.rb
+++ b/test/models/relation_test.rb
@@ -230,4 +230,24 @@ class RelationTest < ActiveSupport::TestCase
     assert_equal 39, changeset.min_lat
     assert_equal 116, changeset.max_lat
   end
+
+  # Check that the preconditions fail when you are over the defined limit of
+  # the maximum number of members in a relation.
+  def test_max_members_per_relation_limit
+    # Speed up unit test by using a small relation member limit
+    with_settings(:max_number_of_relation_members => 20) do
+      user = create(:user)
+      changeset = create(:changeset, :user => user)
+      relation = create(:relation, :changeset => changeset)
+      node = create(:node, :longitude => 116, :latitude => 39)
+      # Create relation which exceeds the relation member limit by one
+      0.upto(Settings.max_number_of_relation_members) do |i|
+        create(:relation_member, :relation => relation, :member_type => "Node", :member_id => node.id, :sequence_id => i)
+      end
+
+      assert_raise OSM::APITooManyRelationMembersError do
+        relation.create_with_history user
+      end
+    end
+  end
 end