Question

Is it possible to build object like this (implementing interface and using a trait at the same time) in PHPUnit mock builder?

<?php

class FooClassThatD implements BarInterface
{
    use BazTrait;
}

Answer 1

I don’t think this is possible with the native mock object methods because they use a specific template to mock a class with a trait that doesn’t allow any extension points. You can get around it easily with a test-specific class from which you build your mock.

abstract class BarWithBazTraitTestClass implements BarInterface
{
    use BazTrait;
}

Create a mock for this class as you would any other abstract class.

$mock = $this->getMockForAbstractClass('BarWithBazTraitTestClass');