scm: git: add unit adapter test of diff invalid revision (#8767).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@6192 e93f8b46-1217-0410-a6f0-8f06a7374b81

diff --git a/test/unit/lib/redmine/scm/adapters/git_adapter_test.rb b/test/unit/lib/redmine/scm/adapters/git_adapter_test.rb
index 7316c99ccfc2122d73a61a3be6422e36259dc076..20401fe5ae18a6b33d98c5934043ad5e34cfd3fc 100644 (file)
--- a/test/unit/lib/redmine/scm/adapters/git_adapter_test.rb
+++ b/test/unit/lib/redmine/scm/adapters/git_adapter_test.rb
@@ -374,6 +374,12 @@ begin
         assert_equal [], @adapter.diff('invalid', '713f4944648826f5')
       end
 
+      def test_diff_revision_invalid
+        assert_nil @adapter.diff(nil, 'abcd1234efgh')
+        assert_nil @adapter.diff(nil, '713f4944648826f5', 'abcd1234efgh')
+        assert_nil @adapter.diff(nil, 'abcd1234efgh', '713f4944648826f5')
+      end
+
       private
 
       def test_scm_version_for(scm_command_version, version)