📜  PHPUnit assertStringStartsWith()函数

📅  最后修改于: 2022-05-13 01:56:28.155000             🧑  作者: Mango

PHPUnit assertStringStartsWith()函数

assertStringStartsWith()函数是 PHPUnit 中的内置函数,用于断言实际字符串是否以预期的前缀字符串开头。如果实际字符串以预期的前缀字符串开头,则此断言将返回 true,否则返回 false。如果为真,则断言的测试用例通过,否则测试用例失败。

句法:

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

参数:此函数接受三个参数,如上所述,如下所述:

  • $expectedprefix:这个参数是代表期望前缀字符串的任何类型。
  • $actualstring:这个参数是代表实际字符串的任何类型。
  • $message:此参数采用字符串值。当测试用例失败时,此字符串消息显示为错误消息。

下面的例子说明了 PHPUnit 中的 assertStringStartsWith()函数:

示例 1:

PHP
assertStringStartsWith(
            $expectedprefix,
            $actualstring, 
            "actual string content start with expected 
             prefix content or not"
        ); 
    } 
} 
    
?>


PHP
assertStringStartsWith(
            $expectedprefix,
            $actualstring, 
            "actual string content start with expected 
             prefix content or not"
        ); 
    } 
} 
    
?>


输出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

F                                                         1 / 1 (100%)

Time: 89 ms, Memory: 10.00 MB

There was 1 failure:

1) GeeksPhpunitTestCase::testNegativeTestcaseForassertStringStartsWith
actual string content start with expected prefix content or not
Failed asserting that 'agreedis' starts with "dis".

/home/lovely/Documents/php/test.php:17

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

示例 2:

PHP

assertStringStartsWith(
            $expectedprefix,
            $actualstring, 
            "actual string content start with expected 
             prefix content or not"
        ); 
    } 
} 
    
?>

输出:

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

.                                                 1 / 1 (100%)

Time: 88 ms, Memory: 10.00 MB

OK (1 test, 1 assertion)

参考: https://phpunit.readthedocs.io/en/9.2/assertions.html#assertstringstartswith