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phpunit生命周期(钩子)assertPreConditions、assertPostConditions和onNotSuccessfulTest

发布时间：2021-09-19 19:44:54编辑：雪饮阅读（）

 前番了解了setUpBeforeClass() 与 tearDownAfterClass()以及setUp与tearDown。

那么接下来了解下assertPreConditions是在断言前调用，也就是在某个测试方法之前调用，严格来说是在setUp之后测试方法之前调用，而同样的有对应的assertPostConditions是断言后调用，也就是在测试方法之后调用，严格来说是在测试方法之后并且在tearDown之前调用（如果某个测试断言失败则不执行assertPostConditions，取而代之的是onNotSuccessfulTest于assertPostConditions的执行时机进行执行）。
那么具体的实例：
StackTest.php:
<?php declare(strict_types=1);
use PHPUnit\Framework\TestCase;
final class StackTest extends TestCase
{
    protected function setUp(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
    }
    protected function tearDown(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
    }
    public static function setUpBeforeClass(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
    }
    public static function tearDownAfterClass(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
    }
    //断言前调用
    protected function assertPreConditions(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
    }
    //断言后调用
    protected function assertPostConditions(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
    }
    protected function onNotSuccessfulTest(Throwable $t): void
    {
        //某个测试断言不正确就触发一次该方法
        fwrite(STDOUT, __METHOD__ . "\n");
        throw $t;
    }
    public function testOne(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
        $this->assertTrue(false);
    }
    public function testTwo(): void
    {
        fwrite(STDOUT, __METHOD__ . "\n");
        $this->assertTrue(true);
    }
}
运行效果如：
C:\Users\Administrator>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\StackTest.php
PHPUnit 9.5.8 by Sebastian Bergmann and contributors.
 
StackTest::setUpBeforeClass
StackTest::setUp
StackTest::assertPreConditions
StackTest::testOne
StackTest::tearDown
StackTest::onNotSuccessfulTest
FStackTest::setUp
StackTest::assertPreConditions
StackTest::testTwo
StackTest::assertPostConditions
StackTest::tearDown
.                                                                  2 / 2 (100%)StackTest::tearDownAfterClass
 
 
Time: 00:00.016, Memory: 20.00 MB
 
There was 1 failure:
 
1) StackTest::testOne
Failed asserting that false is true.
 
C:\Users\Administrator\PhpstormProjects\untitled\StackTest.php:37
 
FAILURES!
Tests: 2, Assertions: 2, Failures: 1.