data       []byte
		dataLen    int
		chunkSize  int64
		// expected output.
		expectedContent    []byte // expected response body.
		expectedRespStatus int    // expected response status body.
		// Access keys
		accessKey        string
		secretKey        string
		shouldPass       bool
		removeAuthHeader bool
		fault            streamFault
		// Custom content encoding.
		contentEncoding string
	}{