assertLessThan()函数是PHPUnit中的内置函数,用于断言实际获得的值是否小于期望值。如果实际值小于期望值,则此断言将返回true,否则返回false。如果为真,则通过断言的测试用例,否则测试用例失败。
用法:
assertLessThan(mixed $expected, mixed $actual [, string $message = ''])
参数:此函数接受上述和以下所述的三个参数:
- $expected:此参数可以是代表期望数据的任何类型的数值。
- $actual:此参数可以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,此字符串消息将显示为错误消息。
以下示例说明了PHPUnit中的assertLessThan()函数:
范例1:
PHP
<?php
use PHPUnit\Framework\TestCase;
class GeeksPhpunitTestCase extends TestCase
{
public function testNegativeTestcaseForassertLessThan()
{ $expected = 11;
$actual = 22;
// Assert function to test whether expected
// value is less than actual or not
$this->assertLessThan(
$expected,
$actual,
"actual value is not less than expected"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors. F 1 / 1 (100%) Time:88 ms, Memory:10.00 MB There was 1 failure: 1) GeeksPhpunitTestCase::testNegativeTestcaseForassertLessThan actual value is not less than expected Failed asserting that 22 is less than 11. /home/lovely/Documents/php/test.php:16 FAILURES! Tests:1, Assertions:1, Failures:1.
范例2:
PHP
<?php
use PHPUnit\Framework\TestCase;
class GeeksPhpunitTestCase extends TestCase
{
public function testPositiveTestcaseForassertLessThan()
{ $expected = 22;
$actual = 11;
// Assert function to test whether expected
// value is less than actual or not
$this->assertLessThan(
$expected,
$actual,
"actual value is not less than expected"
);
}
}
?>
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#assertlessthan
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注:本文由纯净天空筛选整理自shubham_singh大神的英文原创作品 PHPUnit assertLessThan() Function。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。