/usr/share/gocode/src/rsc.io/qr/coding/qr_test.go is in golang-rsc-qr-dev 0.0~git20161121.48b2ede-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 | // Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package coding
import (
"bytes"
"testing"
"rsc.io/qr/gf256"
"rsc.io/qr/libqrencode"
)
func test(t *testing.T, v Version, l Level, text ...Encoding) bool {
s := ""
ty := libqrencode.EightBit
switch x := text[0].(type) {
case String:
s = string(x)
case Alpha:
s = string(x)
ty = libqrencode.Alphanumeric
case Num:
s = string(x)
ty = libqrencode.Numeric
}
key, err := libqrencode.Encode(libqrencode.Version(v), libqrencode.Level(l), ty, s)
if err != nil {
t.Errorf("libqrencode.Encode(%v, %v, %d, %#q): %v", v, l, ty, s, err)
return false
}
mask := (^key.Pixel[8][2]&1)<<2 | (key.Pixel[8][3]&1)<<1 | (^key.Pixel[8][4] & 1)
p, err := NewPlan(v, l, Mask(mask))
if err != nil {
t.Errorf("NewPlan(%v, L, %d): %v", v, err, mask)
return false
}
if len(p.Pixel) != len(key.Pixel) {
t.Errorf("%v: NewPlan uses %dx%d, libqrencode uses %dx%d", v, len(p.Pixel), len(p.Pixel), len(key.Pixel), len(key.Pixel))
return false
}
c, err := p.Encode(text...)
if err != nil {
t.Errorf("Encode: %v", err)
return false
}
badpix := 0
Pixel:
for y, prow := range p.Pixel {
for x, pix := range prow {
pix &^= Black
if c.Black(x, y) {
pix |= Black
}
keypix := key.Pixel[y][x]
want := Pixel(0)
switch {
case keypix&libqrencode.Finder != 0:
want = Position.Pixel()
case keypix&libqrencode.Alignment != 0:
want = Alignment.Pixel()
case keypix&libqrencode.Timing != 0:
want = Timing.Pixel()
case keypix&libqrencode.Format != 0:
want = Format.Pixel()
want |= OffsetPixel(pix.Offset()) // sic
want |= pix & Invert
case keypix&libqrencode.PVersion != 0:
want = PVersion.Pixel()
case keypix&libqrencode.DataECC != 0:
if pix.Role() == Check || pix.Role() == Extra {
want = pix.Role().Pixel()
} else {
want = Data.Pixel()
}
want |= OffsetPixel(pix.Offset())
want |= pix & Invert
default:
want = Unused.Pixel()
}
if keypix&libqrencode.Black != 0 {
want |= Black
}
if pix != want {
t.Errorf("%v/%v: Pixel[%d][%d] = %v, want %v %#x", v, mask, y, x, pix, want, keypix)
if badpix++; badpix >= 100 {
t.Errorf("stopping after %d bad pixels", badpix)
break Pixel
}
}
}
}
return badpix == 0
}
var input = []Encoding{
String("hello"),
Num("1"),
Num("12"),
Num("123"),
Alpha("AB"),
Alpha("ABC"),
}
func TestVersion(t *testing.T) {
badvers := 0
Version:
for v := Version(1); v <= 40; v++ {
for l := L; l <= H; l++ {
for _, in := range input {
if !test(t, v, l, in) {
if badvers++; badvers >= 10 {
t.Errorf("stopping after %d bad versions", badvers)
break Version
}
}
}
}
}
}
func TestEncode(t *testing.T) {
data := []byte{0x10, 0x20, 0x0c, 0x56, 0x61, 0x80, 0xec, 0x11, 0xec, 0x11, 0xec, 0x11, 0xec, 0x11, 0xec, 0x11}
check := []byte{0xa5, 0x24, 0xd4, 0xc1, 0xed, 0x36, 0xc7, 0x87, 0x2c, 0x55}
rs := gf256.NewRSEncoder(Field, len(check))
out := make([]byte, len(check))
rs.ECC(data, out)
if !bytes.Equal(out, check) {
t.Errorf("have %x want %x", out, check)
}
}
|