Illuminate\Testing\PendingCommand::doesntExpectOutput() does not accept patterns

[raszi]

• Laravel Version: v8.58.0
• PHP Version: 7.4.16
• Database Driver & Version: does not matter

Description:

If in your console command you are writing multiple lines to the output then the only chance to write a proper test for it is to use the Mockery::pattern() method to create and match patterns:

Working code

public function test(): void
{
    $this->artisan('command')->expectsOutput(Mockery::pattern('/foo.*?bar/s'));
}

It works as expected but Illuminate\Testing\PendingCommand::doesntExpectOutput() uses the not expected value as the key of an associative array which makes it impossible to use Mockery::pattern().

Steps To Reproduce:

Example code:

public function test(): void
{
    $this->artisan('command')->doesntExpectOutput(Mockery::pattern('/foo.*?bar/s'));
}

This will throw an error like:

ErrorException: Illegal offset type

/path/to/source/vendor/laravel/framework/src/Illuminate/Testing/PendingCommand.php:144
/path/to/source/tests/ExampleTest.php:15

[raszi]

I reported it as a bug since I expected that expectsOutput() and doesntExpectOutput() behaves similarly.

But we can of course see it differently and say that expectsOutput() and doesntExpectOutput() should officially support patterns.