public function testGetHeadersFromLastResponse()
 {
     $dummy = new Dummy();
     $this->assertNull($dummy->getHeadersFromLastResponse());
     $dummy->setLastHeaders($this->getTestHeaders());
     $headers = $dummy->getHeadersFromLastResponse();
     $this->assertCount(7, $headers);
     $this->assertCount(2, $headers['x-li-format']);
     $this->assertEquals('Foo', $headers['Server'][0]);
 }