assertCount()

assertCount($expectedCount, $haystack[, string $message = ''])

当 $haystack 中的元素数量不是 $expectedCount 时报告错误，错误讯息由 $message 指定。

assertNotCount() 是与之相反的断言，接受相同的参数。

Example A.10. assertCount() 的用法

<?php
class CountTest extends PHPUnit_Framework_TestCase
{
    public function testFailure()
    {
        $this->assertCount(0, array('foo'));
    }
}
?>

phpunit CountTest

PHPUnit 5.0.0 by Sebastian Bergmann and contributors.

F

Time: 0 seconds, Memory: 4.75Mb

There was 1 failure:

1) CountTest::testFailure
Failed asserting that actual size 1 matches expected size 0.

/home/sb/CountTest.php:6

FAILURES!
Tests: 1, Assertions: 1, Failures: 1.