PHPUnit assertFileIsWritable()函数
assertFileIsWritable()函数是 PHPUnit 的内置函数,用于断言指定的文件是否为可写文件。如果给定的文件名存在且可写,则此断言将返回 true,否则返回 false。如果为真,则断言的测试用例通过,否则测试用例失败。
句法:
assertFileIsWritable(string $filename[, string $message = ''])
参数:此函数接受两个参数,如上所述,如下所述:
- $filename:这个参数是一个字符串,表示文件名。
- $message:此参数采用字符串值。当测试用例失败时,此字符串消息显示为错误消息。
下面的例子说明了 PHPUnit 中的 assertFileIsWritable()函数:
示例 1:
PHP
assertFileIsWritable(
$filename,
"filename exists and writable"
);
}
}
?>
PHP
assertFileIsWritable(
$filename,
"filename exists and writable"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors.
F 1 / 1 (100%)
Time: 90 ms, Memory: 10.00 MB
There was 1 failure:
1) GeeksPhpunitTestCase::testNegativeTestcaseForassertFileIsWritable
filename exists and writable
Failed asserting that file "/home/lovely/Documents/phptest" exists.
/home/lovely/Documents/php/test.php:15
FAILURES!
Tests: 1, Assertions: 1, Failures: 1.
示例 2:
PHP
assertFileIsWritable(
$filename,
"filename exists and writable"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors.
. 1 / 1 (100%)
Time: 94 ms, Memory: 10.00 MB
OK (1 test, 2 assertions)