assertStringStartsWith()

assertStringStartsWith(string $prefix, string $string[, string $message = ""])

当 $string 不以 $prefix 开头时报告错误，错误讯息由 $message 指定。

assertStringStartsNotWith() 是与之相反的断言，并接受相同的参数。

Example A.41. assertStringStartsWith() 的用法

<?php
class StringStartsWithTest extends PHPUnit_Framework_TestCase
{
    public function testFailure()
    {
        $this->assertStringStartsWith("prefix", "foo");
    }
}
?>

phpunit StringStartsWithTest

PHPUnit 5.0.0 by Sebastian Bergmann and contributors.

F

Time: 0 seconds, Memory: 5.00Mb

There was 1 failure:

1) StringStartsWithTest::testFailure
Failed asserting that "foo" starts with "prefix".

/home/sb/StringStartsWithTest.php:6

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