PHPUnit assertLessThanOrEqual()函数

assertLessThanOrEqual()函数是 PHPUnit 中的内置函数，用于断言实际获取的值是否小于或等于期望值。如果实际值小于或等于预期值，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：

assertLessThanOrEqual(mixed $expected, mixed $actual
[, string $message = ''])

参数：此函数接受三个参数，如上所述，如下所述：

• $expected：此参数是表示预期数据的任何类型的数值。
• $actual：此参数是代表实际数据的任何类型的数值。
• $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 assertLessThanOrEqual()函数：

示例 1：

PHP

assertLessThanOrEqual( 
            $expected, 
            $actual, 
            "actual value is Less than or equal to expected"
        );
          
    }
   
  
      
    public function testNegativeForassertLessThanOrEqualWithLessVal()
    {  
     $expected = 22; 
        $actual = 220;
        // Assert function to test whether expected 
        // value is less than actual or not 
          
        $this->assertLessThanOrEqual( 
            $expected, 
            $actual, 
            "actual value is Less than or equal to expected"
        ); 
    }  
 } 
?>

输出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

FF                                                          2 / 2 (100%)

Time: 91 ms, Memory: 10.00 MB

There were 2 failures:

1) GeeksPhpunitTestCase::testNegativeForassertLessThanOrEqualWithEqualVal
actual value is Less than or equal to expected
Failed asserting that 420 is equal to 22 or is less than 22.

/home/lovely/Documents/php/test.php:15

2) GeeksPhpunitTestCase::testNegativeForassertLessThanOrEqualWithLessVal
actual value is Less than or equal to expected
Failed asserting that 220 is equal to 22 or is less than 22.

/home/lovely/Documents/php/test.php:32

FAILURES!
Tests: 2, Assertions: 4, Failures: 2.

示例 2：

PHP

assertLessThanOrEqual( 
            $expected, 
            $actual, 
            "actual value is greater than or equal to expected"
        );
          
    }
   
  
      
    public function testPositiveForassertLessThanOrEqualWithLessVal()
    {  
     $expected = 22; 
        $actual = 22;
        // Assert function to test whether expected 
        // value is less than actual or not 
          
        $this->assertLessThanOrEqual( 
            $expected, 
            $actual, 
            "actual value is greater than or equal to expected"
        ); 
    }  
 } 
?> 

输出：

PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

..                                                 2 / 2 (100%)

Time: 87 ms, Memory: 10.00 MB

OK (2 tests, 4 assertions)
lovely@lovely:~/Documents/php$ ./phpunit test.php


PHPUnit 8.5.8 by Sebastian Bergmann and contributors.

..                                                 2 / 2 (100%)

Time: 87 ms, Memory: 10.00 MB

OK (2 tests, 4 assertions)

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