Function TestEncodeMultipleRecordsDraft03

go/signedexchange/mice/mice_test.go:178–237

https://tools.ietf.org/html/draft-thomson-http-mice-03#section-4.2

(t *testing.T)

// https://tools.ietf.org/html/draft-thomson-http-mice-03#section-4.2
func TestEncodeMultipleRecordsDraft03(t *testing.T) {
	var buf bytes.Buffer
	message := []byte("When I grow up, I want to be a watermelon")
	mi, err := Draft03Encoding.Encode(&buf, message, 16)
	if err != nil {
		t.Fatal(err)
	}
	wantMI := "mi-sha256-03=IVa9shfs0nyKEhHqtB3WVNANJ2Njm5KjQLjRtnbkYJ4="
	if mi != wantMI {
		t.Errorf("e.MI(); got %v, want %v", mi, wantMI)
	}

	b := buf.Bytes()
	if len(b) != 113 {
		t.Errorf("unexpected buf length %d", len(b))
	}

	cases := []struct {
		begin int
		end   int
		want  []byte
	}{
		{
			begin: 0,
			end:   8,
			want:  []byte{0, 0, 0, 0, 0, 0, 0, 16},
		},
		{
			begin: 8,
			end:   24,
			want:  message[0:16],
		},
		{
			begin: 24,
			end:   56,
			want:  mustStdEncodeBase64("OElbplJlPK+Rv6JNK6p5/515IaoPoZo+2elWL7OQ60A="),
		},
		{
			begin: 56,
			end:   72,
			want:  message[16:32],
		},
		{
			begin: 72,
			end:   104,
			want:  mustStdEncodeBase64("iPMpmgExHPrbEX3/RvwP4d16fWlK4l++p75PUu/KyN0="),
		},
		{
			begin: 104,
			end:   len(b),
			want:  message[32:],
		},
	}
	for _, c := range cases {
		gotBytes := b[c.begin:c.end]
		if !bytes.Equal(gotBytes, c.want) {
			t.Errorf("b[%d:%d]: got %v, want %v", c.begin, c.end, gotBytes, c.want)
		}