PHPUnit assertFileExists()函数
assertFileExists()函数是 PHPUnit 中的内置函数,用于检查文件路径是否存在。如果给定的文件路径存在,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:
assertFileExists(string $filename[, string $message = ''])
参数:该函数接受上面提到的两个参数,如下所述:
- $filename:此参数是一个字符串,表示文件路径。
- $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。
下面的程序说明了 PHPUnit 中的 assertFileExists()函数:
示例 1:
PHP
assertFileExists(
$filename,
"given filename doesn't exists"
);
}
}
?>
PHP
assertFileExists(
$filename,
"filename doesn't exists"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors.
F 1 / 1 (100%)
Time: 391 ms, Memory: 10.00 MB
There was 1 failure:
1) GeeksPhpunitTestCase::testNegativeTestcaseForAssertFileExists
given filename doesn't exists
Failed asserting that file "/home/Documents/geeksDoesNotExist/" exists.
/home/lovely/Documents/php/test.php:15
FAILURES!
Tests: 1, Assertions: 1, Failures: 1.
示例 2:
PHP
assertFileExists(
$filename,
"filename doesn't exists"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors.
. 1 / 1 (100%)
Time: 88 ms, Memory: 10.00 MB
OK (1 test, 1 assertion)
参考: https://phpunit.readthedocs.io/en/8.2/assertions.html#assertfileexists