diff --git a/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb b/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb
index 6c9bdd580..5c423f0c3 100644
--- a/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb
+++ b/test/unit/lib/redmine/scm/adapters/mercurial_adapter_test.rb
@@ -277,6 +277,36 @@ begin
         end      
       end
 
+      def test_nodes_in_branch
+         [
+            'default',
+            @branch_char_1,
+            'branch (1)[2]&,%.-3_4',
+            @branch_char_0,
+            'test_branch.latin-1',
+            'test-branch-00',
+               ].each do |bra|
+          nib0 = @adapter.nodes_in_branch(bra, '', bra, 0)
+          assert nib0
+          nib1 = @adapter.nodes_in_branch(bra, '', bra, 0, :limit => 1)
+          assert_equal 1, nib1.size
+          case bra
+            when 'branch (1)[2]&,%.-3_4'
+              assert_equal 3, nib0.size
+              assert_equal nib0[0], 'afc61e85bde7'
+              nib2 = @adapter.nodes_in_branch(bra, '', bra, 0, :limit => 2)
+              assert_equal 2, nib2.size
+              assert_equal nib2[1], '933ca60293d7'
+            when @branch_char_1
+              assert_equal 2, nib0.size
+              assert_equal nib0[1], '08ff3227303e'
+              nib2 = @adapter.nodes_in_branch(bra, '', bra, 0, :limit => 1)
+              assert_equal 1, nib2.size
+              assert_equal nib2[0], '7bbf4c738e71'
+          end
+        end
+      end
+
       private
 
       def test_hgversion_for(hgversion, version)