function AssertSameNullExpectedRule::processNode

File

vendor/phpstan/phpstan-phpunit/src/Rules/PHPUnit/AssertSameNullExpectedRule.php, line 24

Class

AssertSameNullExpectedRule

@implements Rule<NodeAbstract>

Namespace

PHPStan\Rules\PHPUnit

Code

public function processNode(Node $node, Scope $scope) : array {
    if (!AssertRuleHelper::isMethodOrStaticCallOnAssert($node, $scope)) {
        return [];
    }
    if (count($node->getArgs()) < 2) {
        return [];
    }
    if (!$node->name instanceof Node\Identifier || $node->name
        ->toLowerString() !== 'assertsame') {
        return [];
    }
    $expectedArgumentValue = $node->getArgs()[0]->value;
    if (!$expectedArgumentValue instanceof ConstFetch) {
        return [];
    }
    if ($expectedArgumentValue->name
        ->toLowerString() === 'null') {
        return [
            RuleErrorBuilder::message('You should use assertNull() instead of assertSame(null, $actual).')->identifier('phpunit.assertNull')
                ->build(),
        ];
    }
    return [];
}