PHPUnit assertNotNull()函数
assertNotNull()函数是 PHPUnit 中的内置函数,用于断言变量是否为 (Null)。如果变量为 Not (Null),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:
assertNotNull(mixed $variable[, string $message = ''])
参数:此函数接受两个参数,如下所述:
- $Variable:这个参数代表了任何类型的变量。
- $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 assertNotNull()函数:
示例 1:
PHP
assertNotNull(
$variable,
"variable is null or not"
);
}
}
?>
PHP
assertNotNull(
$variable,
"variable is null or not"
);
}
}
?>
输出:
PHPUnit 8.5.8 by Sebastian Bergmann and contributors.
F 1 / 1 (100%)
Time: 86 ms, Memory: 10.00 MB
There was 1 failure:
1) GeeksPhpunitTestCase::testPositiveTestcaseForassertNotNull
variable is null or not
Failed asserting that null is not null.
/home/lovely/Documents/php/test.php:15
FAILURES!
Tests: 1, Assertions: 1, Failures: 1.
示例 2:
PHP
assertNotNull(
$variable,
"variable is null 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)