public function tryToTestGetArray(UnitTester $I) { $array = ['key_level_1' => ['key_level_2' => ['data_1_2', 'mix', 'fix']]]; $expected = ["data_1_2", "mix", "fix"]; $I->assertEquals($expected, \Modvert\Helper\ArrayHelper::get($array, 'key_level_1.key_level_2')); }