Sokil\Mongo\StructureTest::testUnset_InvalidFieldWithDots PHP Method

    public function testUnset_InvalidFieldWithDots()
    {
        $structure = new Structure();
        $structure->merge(array('a' => array('a1' => array('a11' => 1, 'a12' => 2), 'a2' => array('a21' => 1, 'a22' => 2))));
        $structure->unsetField('a.zzz.a21');
        $this->assertEquals(array('a' => array('a1' => array('a11' => 1, 'a12' => 2), 'a2' => array('a21' => 1, 'a22' => 2))), $structure->toArray());
    }