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phpunit断言-assertNan

发布时间：2021-10-05 13:19:52编辑：雪饮阅读（）

 assertNan断言用于断言一个NAN值，NAN这种值以前是在JavaScript中很常见，php中也是有，就是个人这里目前好像是还没有遇到过。

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

final class NanTest extends TestCase
{
    public function testFailure(): void
    {
        $this->assertNan(1);
    }
    public function testSuccess(): void
    {
        $this->assertNan(NAN);
    }
}
运行结果：
C:\Users\Administrator>D:\phpstudy_pro\Extensions\php\php7.4.3nts\php.exe C:\Users\Administrator\PhpstormProjects\untitled\vendor\phpunit\phpunit\phpunit -c C:\Users\Administrator\PhpstormProjects\untitled\organizing\phpunit.xml C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\NanTest.php
PHPUnit 9.5.8 by Sebastian Bergmann and contributors.
 
F.                                                                  2 / 2 (100%)
 
Time: 00:00.030, Memory: 6.00 MB
 
There was 1 failure:
 
1) NanTest::testFailure
Failed asserting that 1 is nan.
 
C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\NanTest.php:8
 
FAILURES!
Tests: 2, Assertions: 2, Failures: 1.