CODEWITHSUNDEEP
exceptionphpunitassertioninvalidargumentexception
Jimmix
Jimmix

Reputation: 6506

phpunit expectException() wrong exception name

When I run PHPUnit 6.5.13. and have a test method following this example PHPUnit Testing Exceptions Documentation

public function testSetRowNumberException()
{
    $this->expectException(\InvalidArgumentException::class);
    $result = $this->tableCell->setRowNumber('text');

}

that tests this method:

public function setRowNumber(int $number) : TableCell
{
    if (!is_int($number)) {
        throw new \InvalidArgumentException('Input must be an int.');
    }
    $this->rowNumber = $number;

    return $this;
}

I got this failure:

Failed asserting that exception of type "TypeError" matches expected exception "InvalidArgumentException".

the question is why "TypeError" is taken to assertion and how to make assertion use InvalidArgumentException?

Upvotes: 2

Views: 2827

Answers (1)

Jimmix
Jimmix

Reputation: 6506

Got it. The thing is I used typing set to int that's why the code didn't even reach the thow command.

it works if tested method is without set typing to int:

public function setRowNumber($number) : TableCell
{
    if (!is_int($number)) {
        throw new \InvalidArgumentException('Input must be an int.');
    }
    $this->rowNumber = $number;

    return $this;
}

or when the test has TypeError 

public function testSetRowNumberException()
{
    $this->expectException(\TypeError::class);
    $result = $this->tableCell->setRowNumber('text');
}

I'll stay with the second example.

Upvotes: 2

Related Questions