<?php

use PHPUnit\Framework\TestCase;

class MockmapTest extends TestCase
{
    public function testMethodMap() : void
    {
        $mock = Mockery::mock(Fooable::CLASS);
        $mock->shouldReceive([
            'foo' => 1,
            'bar' => 2,
            'baz' => new ArrayObject(),
        ])->once();
        
        $this->assertSame(1, $mock->foo(null));
        $this->assertSame(2, $mock->bar());
        $this->assertInstanceOf('ArrayObject', $mock->baz());
    }
    
    protected function tearDown() : void
    {
        Mockery::close();
    }
}

interface Fooable
{
    public function foo($foo);
    public function bar();
    public function baz();
}

Time: 00:00.008, Memory: 18.00 MB

OK (1 test, 0 assertions)

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PHP 8.3, Laminas MVC 3.2, Symfony 5.2, Laravel 8.28, PHPUnit 9.5, Doctrine ORM 2.8