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Add TestDecodeRow1D

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This commit is contained in:
nkryuchkov 2019-02-09 22:32:28 +03:00
parent a1c5dd23d3
commit 600ed85a45
1 changed files with 241 additions and 6 deletions
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247
pdf/core/ccittfaxdecode/decode_test.go
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@ -1,23 +1,258 @@
package ccittfaxdecode
import "testing"
import (
"log"
"testing"
)
/*func TestDecodeRow1D(t *testing.T) {
func TestDecodeRow1D(t *testing.T) {
type testResult struct {
PixelsRow []byte
BitPos int
}
tests := []struct {
type testData struct {
Encoder *Encoder
Encoded []byte
BitPos int
}{
Want testResult
}
tests := []testData{
{
Encoder: &Encoder{}
Encoder: &Encoder{
Columns: 17,
},
Encoded: []byte{160, 199},
BitPos: 0,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white},
BitPos: 16,
},
},
{
Encoder: &Encoder{
Columns: 17,
},
Encoded: []byte{40, 49, 192},
BitPos: 2,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white},
BitPos: 18,
},
},
{
Encoder: &Encoder{
Columns: 17,
},
Encoded: []byte{40, 49, 192, 0},
BitPos: 2,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white},
BitPos: 18,
},
},
{
Encoder: &Encoder{
Columns: 17,
},
Encoded: []byte{160, 199, 0},
BitPos: 0,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white},
BitPos: 16,
},
},
{
Encoder: &Encoder{
Columns: 17,
},
Encoded: []byte{160, 199, 7},
BitPos: 0,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white},
BitPos: 16,
},
},
{
Encoder: &Encoder{
Columns: 17,
},
Encoded: []byte{40, 49, 193, 192},
BitPos: 2,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white},
BitPos: 18,
},
},
{
Encoder: &Encoder{
Columns: 31,
},
Encoded: []byte{40, 49, 193, 192},
BitPos: 2,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white, black, black, black,
black, black, black, black, black, black, black, black, black, black, black},
BitPos: 26,
},
},
{
Encoder: &Encoder{
Columns: 31,
},
Encoded: []byte{160, 199, 7},
BitPos: 0,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white, black, black, black,
black, black, black, black, black, black, black, black, black, black, black},
BitPos: 24,
},
},
{
Encoder: &Encoder{
Columns: 31,
},
Encoded: []byte{160, 199, 7, 0},
BitPos: 0,
Want: testResult{
PixelsRow: []byte{white, white, white, white, white, white, white, white, white,
black, black, black, black, black, black, black, white, black, black, black,
black, black, black, black, black, black, black, black, black, black, black},
BitPos: 24,
},
},
{
Encoder: &Encoder{
Columns: 40,
},
Encoded: []byte{},
BitPos: 0,
Want: testResult{
PixelsRow: nil,
BitPos: 0,
},
},
{
Encoder: &Encoder{
Columns: 40,
},
Encoded: []byte{},
BitPos: 2,
Want: testResult{
PixelsRow: nil,
BitPos: 2,
},
},
{
Encoder: &Encoder{
Columns: 40,
},
Encoded: nil,
BitPos: 0,
Want: testResult{
PixelsRow: nil,
BitPos: 0,
},
},
{
Encoder: &Encoder{
Columns: 40,
},
Encoded: nil,
BitPos: 2,
Want: testResult{
PixelsRow: nil,
BitPos: 2,
},
},
}
resultsPixels := drawPixels(nil, true, 0)
resultsPixels = drawPixels(resultsPixels, false, 2486)
resultsPixels = drawPixels(resultsPixels, true, 6338)
resultsPixels = drawPixels(resultsPixels, false, 1)
tests = append(tests, testData{
Encoder: &Encoder{
Columns: 8825,
},
Encoded: []byte{53, 1, 208, 56, 1, 240, 31, 108, 58},
BitPos: 0,
Want: testResult{
PixelsRow: resultsPixels,
BitPos: 72,
},
})
tests = append(tests, testData{
Encoder: &Encoder{
Columns: 8825,
},
Encoded: []byte{53, 1, 208, 56, 1, 240, 31, 108, 58, 0},
BitPos: 0,
Want: testResult{
PixelsRow: resultsPixels,
BitPos: 72,
},
})
tests = append(tests, testData{
Encoder: &Encoder{
Columns: 8825,
},
Encoded: []byte{13, 64, 116, 14, 0, 124, 7, 219, 14, 128},
BitPos: 2,
Want: testResult{
PixelsRow: resultsPixels,
BitPos: 74,
},
})
tests = append(tests, testData{
Encoder: &Encoder{
Columns: 8825,
},
Encoded: []byte{13, 64, 116, 14, 0, 124, 7, 219, 14, 128, 0},
BitPos: 2,
Want: testResult{
PixelsRow: resultsPixels,
BitPos: 74,
},
})
for i, test := range tests {
gotPixelsRow, gotBitPos := test.Encoder.decodeRow1D(test.Encoded, test.BitPos)
if i == 6 {
log.Println()
}
if len(gotPixelsRow) != len(test.Want.PixelsRow) {
t.Errorf("Wrong pixels row len. Got %v, want %v\n",
len(gotPixelsRow), len(test.Want.PixelsRow))
} else {
for i := range gotPixelsRow {
if gotPixelsRow[i] != test.Want.PixelsRow[i] {
t.Errorf("Wrong value at %v. Got %v, want %v\n",
i, gotPixelsRow[i], test.Want.PixelsRow[i])
}
}
}
if gotBitPos != test.Want.BitPos {
t.Errorf("Wrong bit pos. Got %v, want %v\n", gotBitPos, test.Want.BitPos)
}
}
}*/
}
func TestTryFetchEOFB(t *testing.T) {
type testResult struct {