# assertInfinite() >[info] ## assertInfinite(mixed $variable[, string $message = '']) 当 `$actual` 不是 `INF` 时报告错误，错误讯息由 `$message` 指定。 `assertFinite()` 是与之相反的断言，接受相同的参数。 **Example A.23. assertInfinite() 的用法** ~~~ <?php class InfiniteTest extends PHPUnit_Framework_TestCase { public function testFailure() { $this->assertInfinite(1); } } ?> ~~~ ~~~ phpunit InfiniteTest PHPUnit 5.0.0 by Sebastian Bergmann and contributors. F Time: 0 seconds, Memory: 5.00Mb There was 1 failure: 1) InfiniteTest::testFailure Failed asserting that 1 is infinite. /home/sb/InfiniteTest.php:6 FAILURES! Tests: 1, Assertions: 1, Failures: 1. ~~~