Nelmio\Alice\Definition\PropertyBagTest::testWithersReturnNewModifiedInstance PHP Method

    public function testWithersReturnNewModifiedInstance()
    {
        $property = new Property('username', 'alice');
        $bag = new PropertyBag();
        $newBag = $bag->with($property);
        $this->assertInstanceOf(PropertyBag::class, $newBag);
        $this->assertSame([], $this->propRefl->getValue($bag));
        $this->assertSame(['username' => $property], $this->propRefl->getValue($newBag));
    }