[ 'Test', 'Test', false, 'mergehistory-fail-self-merge' ],
[ 'Nonexistant', 'Test2', false, 'mergehistory-fail-invalid-source' ],
[ 'Test', 'Nonexistant', false, 'mergehistory-fail-invalid-dest' ],
[ 'Test', 'Test', false, 'mergehistory-fail-self-merge' ],
[ 'Nonexistant', 'Test2', false, 'mergehistory-fail-invalid-source' ],
[ 'Test', 'Nonexistant', false, 'mergehistory-fail-invalid-dest' ],