public function testIsReversing() { $string = new String('Lorem ipsum Dolor amet lore'); $result = $string->reverse(); $this->assertInstanceOf('Simple\\Type\\String', $result); $this->assertEquals('erol tema roloD muspi meroL', $result->toString()); $normal = $result->reverse(); $this->assertInstanceOf('Simple\\Type\\String', $normal); $this->assertEquals('Lorem ipsum Dolor amet lore', $normal->toString()); }