NsplTest\ArgsTest::testExpectsArrayKeyOrCallable_Positive PHP Метод

    public function testExpectsArrayKeyOrCallable_Positive()
    {
        function expectsArrayKeyOrCallablePositiveTest($arg1)
        {
            expects([arrayKey, callable_], $arg1);
        }
        $this->assertNull(expectsArrayKeyOrCallablePositiveTest(42));
        $this->assertNull(expectsArrayKeyOrCallablePositiveTest('answer'));
        $this->assertNull(expectsArrayKeyOrCallablePositiveTest(function () {
            return 'answer 42';
        }));
    }