1 package twooffive
2
3 import (
4 "image/color"
5 "testing"
6 )
7
8 func Test_AddCheckSum(t *testing.T) {
9 if sum, err := AddCheckSum("1234567"); err != nil || sum != "12345670" {
10 t.Fail()
11 }
12 if _, err := AddCheckSum("1ABC"); err == nil {
13 t.Fail()
14 }
15 if _, err := AddCheckSum(""); err == nil {
16 t.Fail()
17 }
18 }
19
20 func Test_Encode(t *testing.T) {
21 _, err := Encode("FOOBAR", false)
22 if err == nil {
23 t.Error("\"FOOBAR\" should not be encodable")
24 }
25
26 testEncode := func(interleaved bool, txt, testResult string) {
27 code, err := Encode(txt, interleaved)
28 if err != nil || code == nil {
29 t.Fail()
30 } else {
31 if code.Bounds().Max.X != len(testResult) {
32 t.Errorf("%v: length missmatch! %v != %v", txt, code.Bounds().Max.X, len(testResult))
33 } else {
34 for i, r := range testResult {
35 if (code.At(i, 0) == color.Black) != (r == '1') {
36 t.Errorf("%v: code missmatch on position %d", txt, i)
37 }
38 }
39 }
40 }
41 }
42
43 testEncode(false, "12345670", "1101101011101010101110101110101011101110111010101010101110101110111010111010101011101110101010101011101110101011101110101101011")
44 testEncode(true, "12345670", "10101110100010101110001110111010001010001110100011100010101010100011100011101101")
45 }
46
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