Not Calling the Original Constructor¶

When creating generated partial test doubles, Mockery mocks out only the method which we specifically told it to. This means that the original constructor of the class we are mocking will be called.

In some cases this is not a desired behavior, as the constructor might issue calls to other methods, or other object collaborators, and as such, can create undesired side-effects in the application’s environment when running the tests.

If this happens, we need to use runtime partial test doubles, as they don’t call the original constructor.

class MyClass
{
    public function __construct()
    {
        echo "Original constructor called." . PHP_EOL;
        // Other side-effects can happen...
    }
}

// This will print "Original constructor called."
$mock = \Mockery::mock('MyClass[foo]');

A better approach is to use runtime partial doubles:

class MyClass
{
    public function __construct()
    {
        echo "Original constructor called." . PHP_EOL;
        // Other side-effects can happen...
    }
}

// This will not print anything
$mock = \Mockery::mock('MyClass')->makePartial();
$mock->shouldReceive('foo');

This is one of the reason why we don’t recommend using generated partial test doubles, but if possible, always use the runtime partials.