20 lines
594 B
PHP
20 lines
594 B
PHP
<?php
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namespace demo\Creational\Singleton\Tests;
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use demo\Creational\Singleton\Singleton;
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use PHPUnit\Framework\TestCase;
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class SingletonTest extends TestCase
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{
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public function testUniqueness()
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{
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$firstCall = Singleton::getInstance();
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$secondCall = Singleton::getInstance();
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// 断言变量属于给定类型
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$this->assertInstanceOf(Singleton::class, $firstCall);
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// 断言两个变量具有相同的类型和值。 用于对象，它断言两个变量引用同一个对象
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$this->assertSame($firstCall, $secondCall);
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}
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} |