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_subversion_test.rb

@@ -30,6 +30,7 @@ class RepositorySubversionTest < ActiveSupport::TestCase
     @repository = Repository::Subversion.create(:project => @project,
                     :url => self.class.subversion_repository_url)
     assert @repository
+    skip "SCM command is unavailable" unless @repository.class.scm_available
   end
 
   def test_invalid_url