README

它是一个单元测试工具，用于验证可调用对象是否抛出（或不抛出）异常。

安装

composer require --dev sophie-spec/throws

需要 PHP >= 7.4。

使用

根据上下文，throws() 和 throws_not() 可以抛出 ShouldHaveThrownException 或 ShouldHaveNotThrownException。

$legal_age = function ($age) {
    if ($age < 18) {
        throw new UnderLegalAgeException("Not a legal age");
    }
};

// It does not throw an exception since
// $legal_age throws an exception, as expected.
throws(fn() => $legal_age(5));

// Here, it throws a ShouldHaveThrownException.
throws(fn() => $legal_age(20));

// We can specify what exception we're expecting:
// since we tell to throws() to catch UnderLegalAgeException exceptions
// it won't throw an exception itself.
throws(fn() => $legal_age(5), UnderLegalAgeException::class);

// Of course, we can tell it to catch Exception exceptions,
// and it would catch UnderLegalAgeException as expected.
throws(fn() => $legal_age(5), Exception::class);

// Here, it would throw a ShouldHaveNotThrownException
// because we're catching SomeOtherException and nothing more.
throws(fn() => $legal_age(5), SomeOtherException::class);

// And, of course, you can catch several exception types.
throws(
    fn() => $legal_age(5),
    SomeOtherException::class,
    UnderLegalAgeException::class
);

// Here's the opposite of throws(), in this example
// it throws a ShouldHaveNotThrownException.
throws_not(fn() => $legal_age(5));

// Yay! $legal_age(20) does not throw an exception!
throws_not(fn() => $legal_age(20));

// Like throws(), we can specify some exception classes to not catch.
// Here, $legal_age(5) still throws an exception and since we're just
// verifying that it does not throw an InvalidArgumentException, so
// throws_not() does not throw a ShouldHaveNotThrownException.
throws_not(fn() => $legal_age(5), InvalidArgumentException::class);

// Now, it throws a ShouldHaveNotThrownException.
throws_not(fn() => $legal_age(5), UnderLegalAgeException::class);

请注意，这是非常重要的，throws_not() 可能会导致假阳性。当你试图捕获特定异常时，如果发生另一个异常，它将被忽略。因此，在使用 throws_not() 进行特定异常捕获时，请确保你了解自己在做什么！

许可证

MIT.