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package code128
import (
"image/color"
"testing"
)
func testEncode(t *testing.T, txt, testResult string) {
code, err := Encode(txt)
if err != nil || code == nil {
t.Error(err)
} else {
if code.Bounds().Max.X != len(testResult) {
t.Errorf("%v: length missmatch. Got %d expected %d", txt, code.Bounds().Max.X, len(testResult))
} else {
encoded := ""
failed := false
for i, r := range testResult {
if code.At(i, 0) == color.Black {
encoded += "1"
} else {
encoded += "0"
}
if (code.At(i, 0) == color.Black) != (r == '1') {
failed = true
t.Errorf("%v: code missmatch on position %d", txt, i)
}
}
if failed {
t.Log("Encoded: ", encoded)
}
}
}
}
func Test_EncodeFunctionChars(t *testing.T) {
encFNC1 := "11110101110"
encFNC2 := "11110101000"
encFNC3 := "10111100010"
encFNC4 := "10111101110"
encStartB := "11010010000"
encStop := "1100011101011"
// Special Case FC1 can also be encoded to C Table therefor using 123 as suffix might have unexpected results.
testEncode(t, string(FNC1)+"A23", encStartB+encFNC1+"10100011000"+"11001110010"+"11001011100"+"10100011110"+encStop)
testEncode(t, string(FNC2)+"123", encStartB+encFNC2+"10011100110"+"11001110010"+"11001011100"+"11100010110"+encStop)
testEncode(t, string(FNC3)+"123", encStartB+encFNC3+"10011100110"+"11001110010"+"11001011100"+"11101000110"+encStop)
testEncode(t, string(FNC4)+"123", encStartB+encFNC4+"10011100110"+"11001110010"+"11001011100"+"11100011010"+encStop)
}
func Test_Unencodable(t *testing.T) {
if _, err := Encode(""); err == nil {
t.Fail()
}
if _, err := Encode("รค"); err == nil {
t.Fail()
}
}
func Test_EncodeCTable(t *testing.T) {
testEncode(t, "HI345678H", "110100100001100010100011000100010101110111101000101100011100010110110000101001011110111011000101000111011000101100011101011")
testEncode(t, "334455", "11010011100101000110001000110111011101000110100100111101100011101011")
testEncode(t, string(FNC1)+"1234",
"11010011100"+ // Start C
"11110101110"+ // FNC1
"10110011100"+ // 12
"10001011000"+ // 34
"11101001100"+ // CheckSum == 24
"1100011101011") // Stop
}
func Test_shouldUseCTable(t *testing.T) {
if !shouldUseCTable([]rune{FNC1, '1', '2'}, startCSymbol) {
t.Error("[FNC1]12 failed")
}
if shouldUseCTable([]rune{FNC1, '1'}, startCSymbol) {
t.Error("[FNC1]1 failed")
}
if shouldUseCTable([]rune{'0', FNC1, '1'}, startCSymbol) {
t.Error("0[FNC1]1 failed")
}
if !shouldUseCTable([]rune{'0', '1', FNC1, '2', '3'}, startBSymbol) {
t.Error("01[FNC1]23 failed")
}
if shouldUseCTable([]rune{'0', '1', FNC1}, startBSymbol) {
t.Error("01[FNC1] failed")
}
}
func Test_Issue16(t *testing.T) {
if !shouldUseATable([]rune{'\r', 'A'}, 0) {
t.Error("Code should start with A-Table if the text start with \\r")
}
if !shouldUseATable([]rune{FNC1, '\r'}, 0) {
t.Error("Code should start with A-Table if the text start with <FNC1>\\r")
}
if shouldUseATable([]rune{FNC1, '1', '2', '3'}, 0) {
t.Error("Code should not start with A-Table if the text start with <FNC1>123")
}
testEncode(t, string(FNC3)+"$P\rI", "110100001001011110001010010001100111011101101111011101011000100010110001010001100011101011")
}
func Test_Datalogic(t *testing.T) {
// <Start A><FNC3>$P\r<checksum><STOP>
testEncode(t, string(FNC3)+"$P\r",
"11010000100"+ // <Start A>
"10111100010"+ // <FNC3>
"10010001100"+ // $
"11101110110"+ // P
"11110111010"+ // CR
"11000100010"+ // checksum = 'I'
"1100011101011") // STOP
// <Start B><FNC3>$P,Ae,P<CR><checksum><STOP>
testEncode(t, string(FNC3)+"$P,Ae,P\r",
"11010010000"+ // <Start B>
"10111100010"+ // <FNC3>
"10010001100"+ // $
"11101110110"+ // P
"10110011100"+ // ,
"10100011000"+ // A
"10110010000"+ // e
"10110011100"+ // ,
"11101110110"+ // P
"11101011110"+ // <Code A>
"11110111010"+ // <CR>
"10110001000"+ // checksum = 'D'
"1100011101011") // STOP
}
|
