assertFileIsReadable()函数是PHPUnit中的内置函数,用于断言指定的assertfile是否是可读取的文件名。如果给定的文件名存在且可读,则此断言将返回true。否则返回false。如果为真,则通过断言的测试用例,否则测试用例失败。
用法:
assertFileIsReadable(string $filename[, string $message = ''])
参数:此函数接受上述和以下描述的两个参数:
- $filename:此参数是表示文件名的字符串。
- $message:此参数采用字符串值。当测试用例失败时,此字符串消息将显示为错误消息。
以下示例说明了PHPUnit中的assertFileIsReadable()函数:
范例1:
PHP
<?php
use PHPUnit\Framework\TestCase;
class GeeksPhpunitTestCase extends TestCase
{
public function testNegativeTestcaseForAssertFileIsReadable()
{
$filename = "/home/lovely/Documents/phpunit";
// Assert function to test whether the given
// file name either exists and readable
$this->assertFileIsReadable(
$filename,
"File name exists and readable"
);
}
}
?>
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::testNegativeTestcaseForAssertFileIsReadable File name exists and readable Failed asserting that file "/home/lovely/Documents/phpunit" exists. /home/lovely/Documents/php/test.php:15 FAILURES! Tests:1, Assertions:1, Failures:1.
范例2:
PHP
<?php
use PHPUnit\Framework\TestCase;
class GeeksPhpunitTestCase extends TestCase
{
public function testPositiveTestcaseForAssertFileIsReadable()
{
$filename = "/home/lovely/Documents/php";
// Assert function to test whether the given
// file name either exists and readable
$this->assertFileIsReadable(
$filename,
"File name exists and readable"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors. . 1 / 1 (100%) Time:87 ms, Memory:10.00 MB OK (1 test, 2 assertions)
参考:https://phpunit.readthedocs.io/en/9.2/assertions.html#assertfileisreadable
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注:本文由纯净天空筛选整理自shubham_singh大神的英文原创作品 PHPUnit assertFileIsReadable() Function。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。