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