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phpunit指明了要覆盖(covers)哪个方法的测试

发布时间：2021-09-25 17:41:09编辑：雪饮阅读（）

可以在某个方法上指定该方法体内的某个调用方法是被覆盖过的测试，也可以指定该方法内某几个调用方法是被覆盖过的测试。这里同样是使用上篇中所学习的covers标注。

BankAccountTest.php：

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

final class BankAccountTest extends TestCase
{
    private $ba;

    protected function setUp(): void
    {
        $this->ba = new BankAccount;
    }

    /**
     * @covers \BankAccount::getBalance
     */
    public function testBalanceIsInitiallyZero(): void
    {
        $this->assertSame(0, $this->ba->getBalance());
    }

    /**
     * @covers \BankAccount::withdrawMoney
     */
    public function testBalanceCannotBecomeNegative(): void
    {
        try {
            $this->ba->withdrawMoney(1);
        }

        catch (BankAccountException $e) {
            $this->assertSame(0, $this->ba->getBalance());

            return;
        }

        $this->fail();
    }

    /**
     * @covers \BankAccount::depositMoney
     */
    public function testBalanceCannotBecomeNegative2(): void
    {
        try {
            $this->ba->depositMoney(-1);
        }

        catch (BankAccountException $e) {
            $this->assertSame(0, $this->ba->getBalance());

            return;
        }

        $this->fail();
    }

    /**
     * @covers \BankAccount::getBalance
     * @covers \BankAccount::depositMoney
     * @covers \BankAccount::withdrawMoney
     */
    public function testDepositWithdrawMoney(): void
    {
        $this->assertSame(0, $this->ba->getBalance());
        $this->ba->depositMoney(1);
        $this->assertSame(1, $this->ba->getBalance());
        $this->ba->withdrawMoney(1);
        $this->assertSame(0, $this->ba->getBalance());
    }
}

其所依赖的BankAccountException.php：

<?php
class BankAccountException extends Exception {
    public function __construct($message, $code=0){
        parent::__construct($message, $code);
    }
}

以及BankAccount.php： <?php
class BankAccount{
    public function getBalance(){
        return 0;
    }
    public function withdrawMoney($a){
        throw new BankAccountException("withdrawMoney exception",$a);
    }
    public function depositMoney($a){
        throw new BankAccountException("depositMoney exception",$a);
    }
}

最后的运行结果：

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\BankAccountTest.php

PHPUnit 9.5.8 by Sebastian Bergmann and contributors.

...E 4 / 4 (100%)

Time: 00:00.005, Memory: 20.00 MB

There was 1 error:

1) BankAccountTest::testDepositWithdrawMoney

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:

0.0147 1571792 1. {main}() D:\phpstudy_pro\Extensions\php\php7.3.4nts\phpunit-9.5.8.phar:0

0.1336 18893800 2. PHPUnit\TextUI\Command::main(???) D:\phpstudy_pro\Extensions\php\php7.3.4nts\phpunit-9.5.8.phar:2249

0.1336 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

0.1389 19085800 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

0.1723 19138320 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

0.1725 19138344 6. PHPUnit\TextUI\DefaultResultPrinter->printErrors(class PHPUnit\Framework\TestResult) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:152

0.1725 19138344 7. PHPUnit\TextUI\DefaultResultPrinter->printDefects(array(1), string(5)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:295

0.1761 19138344 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

0.1765 19138344 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

0.1765 19138344 10. PHPUnit\Framework\ExceptionWrapper->__toString() phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/TextUI/DefaultResultPrinter.php:288

0.1765 19138424 11. PHPUnit\Util\Filter::getFilteredStacktrace(class PHPUnit\Framework\ExceptionWrapper) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Framework/ExceptionWrapper.php:50

0.1765 19139560 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

0.1766 19139672 13. PHPUnit\Util\Filter::fileIsExcluded(string(79), class PHPUnit\Util\ExcludeList) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/Filter.php:76

0.1766 19139672 14. PHPUnit\Util\ExcludeList->isExcluded(string(79)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/Filter.php:80

0.1766 19139672 15. PHPUnit\Util\ExcludeList->initialize() phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/ExcludeList.php:166

0.1766 19139672 16. class_exists(string(37)) phar://D:/phpstudy_pro/Extensions/php/php7.3.4nts/phpunit-9.5.8.phar/phpunit/Util/ExcludeList.php:182

0.1767 19139736 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

0.1767 19139800 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