if err != nil {
			t.Fatalf("Failed to create new streaming signed HTTP request: <ERROR> %v.", err)
		}
		switch test.fault {
		case BadSignature:
			// Reset date field in header to make streaming signature fail.
			req.Header.Set("x-amz-date", "")
		case TooBigDecodedLength:
			// Set decoded length to a large value out of int64 range to simulate parse failure.