SparkPost\Test\SparkPostResponseTest::testGetHeaderLine PHP Method

    public function testGetHeaderLine()
    {
        $param = 'header';
        $this->responseMock->shouldReceive('getHeaderLine')->andReturn($this->returnValue);
        $sparkpostResponse = new SparkPostResponse($this->responseMock);
        $this->assertEquals($this->responseMock->getHeaderLine($param), $sparkpostResponse->getHeaderLine($param));
    }