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phpunit断言方法参数为某特定对象(identicalTo的使用)

发布时间：2021-09-23 21:04:33编辑：雪饮阅读（）

Phpunit中with可以断言的类型实在是挺多的，上篇了解了通过匿名函数的自定义断言。

那么这次了解下identicalTo，identicalTo可以断言一个方法所接收的参数是某个特定对象。

具体实例：

SubjectTest.php：

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

final class SubjectTest extends TestCase
{
    public function testIdenticalObjectPassed(): void
    {
        $expectedObject = new stdClass;
        $expectedObject2 = new stdClass;

        $mock = $this->getMockBuilder(stdClass::class)
            ->setMethods(['foo'])
            ->getMock();
        //断言foo方法是以stdClass的实例$expectedObject做为参数进行调用的
        $mock->expects($this->once())
            ->method('foo')
            ->with($this->identicalTo($expectedObject));

        $mock->foo($expectedObject2);
    }
}

这里运行肯定是断言失败了，因为我断言的是foo方法接收的参数是$expectedObject，那么实际上foo方法接收的参数是$expectedObject2：

C:\Users\Administrator\PhpstormProjects\untitled\organizing>D:\phpstudy_pro\Extensions\php\php7.3.4nts\php.exe D:\phpstudy_pro\Extensions\php\php7.3.4nts\phpunit-9.5.8.phar C:\Users\Administrator\PhpstormProjects\untitled\organizing\tests\SubjectTest.php

PHPUnit 9.5.8 by Sebastian Bergmann and contributors.

F 1 / 1 (100%)

Time: 00:00.006, Memory: 20.00 MB

There was 1 failure:

1) SubjectTest::testIdenticalObjectPassed

Warning: include(PHPUnit\Composer\Autoload\ClassLoader.php): failed to open stream: No such file or directory in C:\Users\Administrator\PhpstormProjects\untitled\organizing\src\autoload.php on line 3

Call Stack:

0.0148 1571792 1. {main}() D:\phpstudy_pro\Extensions\php\php7.3.4nts\phpunit-9.5.8.phar:0

0.1359 18893800 2. PHPUnit\TextUI\Command::main(???) D:\phpstudy_pro\Extensions\php\php7.3.4nts\phpunit-9.5.8.phar:2249

0.1359 18893912 3. PHPUnit\TextUI\Command->run(array(2), true) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/Command.php:93

0.1407 19070016 4. PHPUnit\TextUI\TestRunner->run(class PHPUnit\Framework\TestSuite, array(15), array(0), true) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/Command.php:124

0.1827 19145792 5. PHPUnit\TextUI\DefaultResultPrinter->printResult(class PHPUnit\Framework\TestResult) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/TestRunner.php:496

0.1829 19145816 6. PHPUnit\TextUI\DefaultResultPrinter->printFailures(class PHPUnit\Framework\TestResult) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:154

0.1829 19145816 7. PHPUnit\TextUI\DefaultResultPrinter->printDefects(array(1), string(7)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:299

0.1833 19145816 8. PHPUnit\TextUI\DefaultResultPrinter->printDefect(class PHPUnit\Framework\TestFailure, long) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:272

0.1870 19145816 9. PHPUnit\TextUI\DefaultResultPrinter->printDefectTrace(class PHPUnit\Framework\TestFailure) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:279

0.1870 19145816 10. PHPUnit\Framework\ExpectationFailedException->__toString() phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:288

0.1870 19146072 11. PHPUnit\Util\Filter::getFilteredStacktrace(class PHPUnit\Framework\ExpectationFailedException) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Framework/Exception/Exception.php:58

0.1871 19147208 12. PHPUnit\Util\Filter::shouldPrintFrame(array(2), string(25), class PHPUnit\Util\ExcludeList) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/Filter.php:57

0.1871 19147352 13. PHPUnit\Util\Filter::fileIsExcluded(string(109), class PHPUnit\Util\ExcludeList) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/Filter.php:76

0.1871 19147352 14. PHPUnit\Util\ExcludeList->isExcluded(string(109)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/Filter.php:80

0.1871 19147352 15. PHPUnit\Util\ExcludeList->initialize() phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/ExcludeList.php:166

0.1871 19147352 16. class_exists(string(37)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/ExcludeList.php:182

0.1871 19147416 17. spl_autoload_call(string(37)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/ExcludeList.php:182

0.1871 19147480 18. autoload(string(37)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/ExcludeList.php:182

Warning: include(): Failed opening 'PHPUnit\Composer\Autoload\ClassLoader.php' for inclusion (include_path='.;C:\php\pear') in C:\Users\Administrator\PhpstormProjects\untitled\organizing\src\autoload.php on line 3