SparkPost\Test\SparkPostResponseTest::testGetHeader PHP Method

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