assertContainsOnlyInstancesOf()

assertContainsOnlyInstancesOf(string $classname, Traversable|array $haystack[, string $message = ''])

当 $haystack 并非仅包含类 $classname 的实例时报告错误，错误讯息由 $message 指定。

例 A.9: assertContainsOnlyInstancesOf() 的用法

<?php
use PHPUnit\Framework\TestCase;
 
class ContainsOnlyInstancesOfTest extends TestCase
{
    public function testFailure()
    {
        $this->assertContainsOnlyInstancesOf(
            Foo::class,
            [new Foo, new Bar, new Foo]
        );
    }
}
?>

phpunit ContainsOnlyInstancesOfTest
PHPUnit 6.5.0 by Sebastian Bergmann and contributors.
 
F
 
Time: 0 seconds, Memory: 5.00Mb
 
There was 1 failure:
 
1) ContainsOnlyInstancesOfTest::testFailure
Failed asserting that Array ([0]=> Bar Object(...)) is an instance of class "Foo".
 
/home/sb/ContainsOnlyInstancesOfTest.php:6
 
FAILURES!
Tests: 1, Assertions: 1, Failures: 1.