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Traits are not supported (`Mockery::mock()`)

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Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
45/100
Issue type
Bug
Clarity
Mostly clear
Activity status
Stale
Tech stack
php
Domain
testing

Research direction

Start by reproducing the two Mockery::mock() examples, comparing a class-only mock with one that includes trait T. Trace how the extension handles Mockery::mock() arguments and verify that trait methods are represented while unknown methods remain rejected; the dumped type should no longer be NEVER.

Written by the indexing model from the issue text.

Description

Mockery::mock() allow to add traits into mocks:

<?php declare(strict_types = 1);

class C {
    public function helloClass(): string { return 'hello class'; }
}

trait T {
    public function helloTrait(): string { return 'hello trait'; }
}

$mock = Mockery::mock(C::class, T::class);
$mock->makePartial();

\PHPStan\dumpType($mock);

echo $mock->helloTrait();

will output hello trait. Unfortunately, it is not supported by this extension (and seems phpstan also cannot create intersections with traits?) so the dumped type will be *NEVER* -> the $mock->helloTrait() actually not validated at all... :(

Mockery::mock(C::class)->helloUnknown();           // Call to an undefined method C&Mockery\MockInterface::helloUnknown()
Mockery::mock(C::class, T::class)->helloUnknown(); // nothing

If we are on Level 10 and doing something like Mockery::mock(C::class)->getSomething()->method(); we also will get "Cannot call method method() on mixed.".

Dominant language
PHP
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Forks
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Avg merge
1h 41m
Merged PRs (30d)
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