nction test_invalid_percentage(value) {
  test_invalid_value('margin-left', value);
}

// Syntax checking
test_invalid_percentage('min()');
test_invalid_percentage('min( )');
test_invalid_percentage('min(,)');
test_invalid_percentage('min(1#)');
test_invalid_percentage('min(%1)');
test_invalid_percentage('min(1%, )');
test_invalid_percentage('min(, 1%)');
test_invalid_percentage('min(1% + )');
test_invalid_percentage('min(1% - )');
test_invalid_percentage('min(1% * )');
test_invalid_percentage('min(1% / )')