assertFileExists()

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

当 $filename 所指定的文件不存在时报告错误，错误讯息由 $message 指定。

assertFileNotExists() 是与之相反的断言，接受相同的参数。

Example A.20. assertFileExists() 的用法

<?php
class FileExistsTest extends PHPUnit_Framework_TestCase
{
    public function testFailure()
    {
        $this->assertFileExists("/path/to/file");
    }
}
?>

phpunit FileExistsTest

PHPUnit 5.0.0 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.