PHPUnit9.0 断言-assertFileExists()

assertFileExists(string $filename[, string $message = ''])

PHPUnit9.0 断言集合

当 ​$filename​ 所指定的文件不存在时报告错误，错误讯息由 ​$message​ 指定。
​assertFileDoesNotExist()​ 是与之相反的断言，接受相同的参数。
示例 1.25 assertFileExists() 的用法

<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;

final class FileExistsTest extends TestCase
{
    public function testFailure(): void
    {
        $this->assertFileExists('/path/to/file');
    }
}

$ phpunit FileExistsTest
PHPUnit latest.0 by Sebastian Bergmann and contributors.

F

Time: 0 seconds, Memory: 4.75Mb

There was 1 failure:

1) FileExistsTest::testFailure
Failed asserting that file "/path/to/file" exists.

/home/sb/FileExistsTest.php:6

FAILURES!
Tests: 1, Assertions: 1, Failures: 1.