Skip repository tests when the SCM client command is unavailable (#42500).

Patch by Go MAEDA (user:maeda).


git-svn-id: https://svn.redmine.org/redmine/trunk@23618 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/unit/repository_git_test.rb

@@ -41,6 +41,7 @@ class RepositoryGitTest < ActiveSupport::TestCase
         :path_encoding => 'ISO-8859-1'
       )
     assert @repository
+    skip "SCM command is unavailable" unless @repository.class.scm_available
   end
 
   def test_nondefault_repo_with_blank_identifier_destruction