public function testRemove()
 {
     $data = ['abc' => '123', 'foo' => 'bar'];
     $this->property->setValue($this->bag, $data);
     $this->bag->remove('foo');
     $this->assertEquals(['abc' => '123'], $this->property->getValue($this->bag));
 }
 /**
  * Remove header from collection
  *
  * @param  string $key The case-insensitive header name
  */
 public function remove($key)
 {
     parent::remove($this->normalizeKey($key));
 }