mirror of
https://github.com/autc04/Retro68.git
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367 lines
40 KiB
Go
367 lines
40 KiB
Go
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// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package flate
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import (
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"bytes"
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"flag"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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"strings"
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"testing"
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)
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var update = flag.Bool("update", false, "update reference files")
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// TestBlockHuff tests huffman encoding against reference files
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// to detect possible regressions.
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// If encoding/bit allocation changes you can regenerate these files
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// by using the -update flag.
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func TestBlockHuff(t *testing.T) {
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// determine input files
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match, err := filepath.Glob("testdata/huffman-*.in")
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if err != nil {
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t.Fatal(err)
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}
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for _, in := range match {
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out := in // for files where input and output are identical
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if strings.HasSuffix(in, ".in") {
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out = in[:len(in)-len(".in")] + ".golden"
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}
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testBlockHuff(t, in, out)
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}
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}
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func testBlockHuff(t *testing.T, in, out string) {
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all, err := ioutil.ReadFile(in)
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if err != nil {
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t.Error(err)
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return
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}
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var buf bytes.Buffer
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bw := newHuffmanBitWriter(&buf)
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bw.writeBlockHuff(false, all)
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bw.flush()
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got := buf.Bytes()
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want, err := ioutil.ReadFile(out)
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if err != nil && !*update {
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t.Error(err)
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return
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}
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t.Logf("Testing %q", in)
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if !bytes.Equal(got, want) {
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if *update {
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if in != out {
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t.Logf("Updating %q", out)
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if err := ioutil.WriteFile(out, got, 0666); err != nil {
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t.Error(err)
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}
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return
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}
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// in == out: don't accidentally destroy input
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t.Errorf("WARNING: -update did not rewrite input file %s", in)
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}
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t.Errorf("%q != %q (see %q)", in, out, in+".got")
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if err := ioutil.WriteFile(in+".got", got, 0666); err != nil {
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t.Error(err)
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}
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return
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}
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t.Log("Output ok")
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// Test if the writer produces the same output after reset.
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buf.Reset()
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bw.reset(&buf)
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bw.writeBlockHuff(false, all)
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bw.flush()
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got = buf.Bytes()
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if !bytes.Equal(got, want) {
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t.Errorf("after reset %q != %q (see %q)", in, out, in+".reset.got")
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if err := ioutil.WriteFile(in+".reset.got", got, 0666); err != nil {
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t.Error(err)
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}
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return
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}
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t.Log("Reset ok")
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testWriterEOF(t, "huff", huffTest{input: in}, true)
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}
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type huffTest struct {
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tokens []token
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input string // File name of input data matching the tokens.
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want string // File name of data with the expected output with input available.
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wantNoInput string // File name of the expected output when no input is available.
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}
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const ml = 0x7fc00000 // Maximum length token. Used to reduce the size of writeBlockTests
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var writeBlockTests = []huffTest{
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{
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input: "testdata/huffman-null-max.in",
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want: "testdata/huffman-null-max.%s.expect",
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wantNoInput: "testdata/huffman-null-max.%s.expect-noinput",
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tokens: []token{0x0, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, 0x0, 0x0},
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},
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{
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input: "testdata/huffman-pi.in",
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want: "testdata/huffman-pi.%s.expect",
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wantNoInput: "testdata/huffman-pi.%s.expect-noinput",
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tokens: []token{0x33, 0x2e, 0x31, 0x34, 0x31, 0x35, 0x39, 0x32, 0x36, 0x35, 0x33, 0x35, 0x38, 0x39, 0x37, 0x39, 0x33, 0x32, 0x33, 0x38, 0x34, 0x36, 0x32, 0x36, 0x34, 0x33, 0x33, 0x38, 0x33, 0x32, 0x37, 0x39, 0x35, 0x30, 0x32, 0x38, 0x38, 0x34, 0x31, 0x39, 0x37, 0x31, 0x36, 0x39, 0x33, 0x39, 0x39, 0x33, 0x37, 0x35, 0x31, 0x30, 0x35, 0x38, 0x32, 0x30, 0x39, 0x37, 0x34, 0x39, 0x34, 0x34, 0x35, 0x39, 0x32, 0x33, 0x30, 0x37, 0x38, 0x31, 0x36, 0x34, 0x30, 0x36, 0x32, 0x38, 0x36, 0x32, 0x30, 0x38, 0x39, 0x39, 0x38, 0x36, 0x32, 0x38, 0x30, 0x33, 0x34, 0x38, 0x32, 0x35, 0x33, 0x34, 0x32, 0x31, 0x31, 0x37, 0x30, 0x36, 0x37, 0x39, 0x38, 0x32, 0x31, 0x34, 0x38, 0x30, 0x38, 0x36, 0x35, 0x31, 0x33, 0x32, 0x38, 0x32, 0x33, 0x30, 0x36, 0x36, 0x34, 0x37, 0x30, 0x39, 0x33, 0x38, 0x34, 0x34, 0x36, 0x30, 0x39, 0x35, 0x35, 0x30, 0x35, 0x38, 0x32, 0x32, 0x33, 0x31, 0x37, 0x32, 0x35, 0x33, 0x35, 0x39, 0x34, 0x30, 0x38, 0x31, 0x32, 0x38, 0x34, 0x38, 0x31, 0x31, 0x31, 0x37, 0x34, 0x4040007e, 0x34, 0x31, 0x30, 0x32, 0x37, 0x30, 0x31, 0x39, 0x33, 0x38, 0x35, 0x32, 0x31, 0x31, 0x30, 0x35, 0x35, 0x35, 0x39, 0x36, 0x34, 0x34, 0x36, 0x32, 0x32, 0x39, 0x34, 0x38, 0x39, 0x35, 0x34, 0x39, 0x33, 0x30, 0x33, 0x38, 0x31, 0x40400012, 0x32, 0x38, 0x38, 0x31, 0x30, 0x39, 0x37, 0x35, 0x36, 0x36, 0x35, 0x39, 0x33, 0x33, 0x34, 0x34, 0x36, 0x40400047, 0x37, 0x35, 0x36, 0x34, 0x38, 0x32, 0x33, 0x33, 0x37, 0x38, 0x36, 0x37, 0x38, 0x33, 0x31, 0x36, 0x35, 0x32, 0x37, 0x31, 0x32, 0x30, 0x31, 0x39, 0x30, 0x39, 0x31, 0x34, 0x4040001a, 0x35, 0x36, 0x36, 0x39, 0x32, 0x33, 0x34, 0x36, 0x404000b2, 0x36, 0x31, 0x30, 0x34, 0x35, 0x34, 0x33, 0x32, 0x36, 0x40400032, 0x31, 0x33, 0x33, 0x39, 0x33, 0x36, 0x30, 0x37, 0x32, 0x36, 0x30, 0x32, 0x34, 0x39, 0x31, 0x34, 0x31, 0x32, 0x37, 0x33, 0x37, 0x32, 0x34, 0x35, 0x38, 0x37, 0x30, 0x30, 0x36, 0x36, 0x30, 0x36, 0x33, 0x31, 0x35, 0x35, 0x38, 0x38, 0x31, 0x37, 0x34, 0x38, 0x38, 0x31, 0x35, 0x32, 0x30, 0x39, 0x32, 0x30, 0x39, 0x36, 0x32, 0x38, 0x32, 0x39, 0x32, 0x35, 0x34, 0x30, 0x39, 0x31, 0x37, 0x31, 0x35, 0x33, 0x36, 0x34, 0x33, 0x36, 0x37, 0x38, 0x39, 0x32, 0x35, 0x39, 0x30, 0x33, 0x36, 0x30, 0x30, 0x31, 0x31, 0x33, 0x33, 0x30, 0x35, 0x33, 0x30, 0x35, 0x34, 0x38, 0x38, 0x32, 0x30, 0x34, 0x36, 0x36, 0x35, 0x32, 0x31, 0x33, 0x38, 0x34, 0x31, 0x34, 0x36, 0x39, 0x35, 0x31, 0x39, 0x34, 0x31, 0x35, 0x31, 0x31, 0x36, 0x30, 0x39, 0x34, 0x33, 0x33, 0x30, 0x35, 0x37, 0x32, 0x37, 0x30, 0x33, 0x36, 0x35, 0x37, 0x35, 0x39, 0x35, 0x39, 0x31, 0x39, 0x35, 0x33, 0x30, 0x39, 0x32, 0x31, 0x38, 0x36, 0x31, 0x31, 0x37, 0x404000e9, 0x33, 0x32, 0x40400009, 0x39, 0x33, 0x31, 0x30, 0x35, 0x31, 0x31, 0x38, 0x35, 0x34, 0x38, 0x30, 0x37, 0x4040010e, 0x33, 0x37, 0x39, 0x39, 0x36, 0x32, 0x37, 0x34, 0x39, 0x35, 0x36, 0x37, 0x33, 0x35, 0x31, 0x38, 0x38, 0x35, 0x37, 0x35, 0x32, 0x37, 0x32, 0x34, 0x38, 0x39, 0x31, 0x32, 0x32, 0x37, 0x39, 0x33, 0x38, 0x31, 0x38, 0x33, 0x30, 0x31, 0x31, 0x39, 0x34, 0x39, 0x31, 0x32, 0x39, 0x38, 0x33, 0x33, 0x36, 0x37, 0x33, 0x33, 0x36, 0x32, 0x34, 0x34, 0x30, 0x36, 0x35, 0x36, 0x36, 0x34, 0x33, 0x30, 0x38, 0x36, 0x30, 0x32, 0x31, 0x33, 0x39, 0x34, 0x39, 0x34, 0x36, 0x33, 0x39, 0x35, 0x32, 0x32, 0x34, 0x37, 0x33, 0x37, 0x31, 0x39, 0x30, 0x37, 0x30, 0x32, 0x31, 0x37, 0x39, 0x38, 0x40800099, 0x37, 0x30, 0x32, 0x37, 0x37, 0x30, 0x35, 0x33, 0x39, 0x32, 0x31, 0x37, 0x31, 0x37, 0x36, 0x32, 0x39, 0x33, 0x31, 0x37, 0x36, 0x37, 0x35, 0x40800232, 0x37, 0x34, 0x38, 0x31, 0x40400006, 0x36, 0x36, 0x39, 0x34, 0x30, 0x404001e7, 0x30, 0x30, 0x30, 0x35, 0x36, 0x38, 0x31, 0x32, 0x37, 0x31, 0x34, 0x35, 0x32, 0x36, 0x33, 0x35, 0x36, 0x30, 0x38, 0x32, 0x37, 0x37, 0x38, 0x35, 0x37, 0x37, 0x31, 0x33, 0x34, 0x32, 0x37, 0x35, 0x37, 0x37, 0x38, 0x39, 0x36, 0x40400129, 0x33, 0x36, 0x33, 0x37, 0x31, 0x37, 0x38, 0x37, 0x32, 0x31, 0x34, 0x36, 0x38, 0x34, 0x34, 0x30, 0x39, 0x30, 0x31, 0x32, 0x32, 0x34, 0x39, 0x35, 0x33, 0x34, 0x33, 0x30, 0x31, 0x34, 0x36, 0x35, 0x34, 0x39, 0x35, 0x38, 0x35, 0x33, 0x37, 0x31, 0x30, 0x35, 0x30, 0x37, 0x39, 0x404000ca, 0x36, 0x40400153, 0x38, 0x39, 0x32, 0x33, 0x35, 0x34, 0x404001c9, 0x39, 0x35, 0x36, 0x31, 0x31, 0x32, 0x31, 0x32
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},
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{
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input: "testdata/huffman-rand-1k.in",
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want: "testdata/huffman-rand-1k.%s.expect",
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wantNoInput: "testdata/huffman-rand-1k.%s.expect-noinput",
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|
tokens: []token{0xf8, 0x8b, 0x96, 0x76, 0x48, 0xd, 0x85, 0x94, 0x25, 0x80, 0xaf, 0xc2, 0xfe, 0x8d, 0xe8, 0x20, 0xeb, 0x17, 0x86, 0xc9, 0xb7, 0xc5, 0xde, 0x6, 0xea, 0x7d, 0x18, 0x8b, 0xe7, 0x3e, 0x7, 0xda, 0xdf, 0xff, 0x6c, 0x73, 0xde, 0xcc, 0xe7, 0x6d, 0x8d, 0x4, 0x19, 0x49, 0x7f, 0x47, 0x1f, 0x48, 0x15, 0xb0, 0xe8, 0x9e, 0xf2, 0x31, 0x59, 0xde, 0x34, 0xb4, 0x5b, 0xe5, 0xe0, 0x9, 0x11, 0x30, 0xc2, 0x88, 0x5b, 0x7c, 0x5d, 0x14, 0x13, 0x6f, 0x23, 0xa9, 0xd, 0xbc, 0x2d, 0x23, 0xbe, 0xd9, 0xed, 0x75, 0x4, 0x6c, 0x99, 0xdf, 0xfd, 0x70, 0x66, 0xe6, 0xee, 0xd9, 0xb1, 0x9e, 0x6e, 0x83, 0x59, 0xd5, 0xd4, 0x80, 0x59, 0x98, 0x77, 0x89, 0x43, 0x38, 0xc9, 0xaf, 0x30, 0x32, 0x9a, 0x20, 0x1b, 0x46, 0x3d, 0x67, 0x6e, 0xd7, 0x72, 0x9e, 0x4e, 0x21, 0x4f, 0xc6, 0xe0, 0xd4, 0x7b, 0x4, 0x8d, 0xa5, 0x3, 0xf6, 0x5, 0x9b, 0x6b, 0xdc, 0x2a, 0x93, 0x77, 0x28, 0xfd, 0xb4, 0x62, 0xda, 0x20, 0xe7, 0x1f, 0xab, 0x6b, 0x51, 0x43, 0x39, 0x2f, 0xa0, 0x92, 0x1, 0x6c, 0x75, 0x3e, 0xf4, 0x35, 0xfd, 0x43, 0x2e, 0xf7, 0xa4, 0x75, 0xda, 0xea, 0x9b, 0xa, 0x64, 0xb, 0xe0, 0x23, 0x29, 0xbd, 0xf7, 0xe7, 0x83, 0x3c, 0xfb, 0xdf, 0xb3, 0xae, 0x4f, 0xa4, 0x47, 0x55, 0x99, 0xde, 0x2f, 0x96, 0x6e, 0x1c, 0x43, 0x4c, 0x87, 0xe2, 0x7c, 0xd9, 0x5f, 0x4c, 0x7c, 0xe8, 0x90, 0x3, 0xdb, 0x30, 0x95, 0xd6, 0x22, 0xc, 0x47, 0xb8, 0x4d, 0x6b, 0xbd, 0x24, 0x11, 0xab, 0x2c, 0xd7, 0xbe, 0x6e, 0x7a, 0xd6, 0x8, 0xa3, 0x98, 0xd8, 0xdd, 0x15, 0x6a, 0xfa, 0x93, 0x30, 0x1, 0x25, 0x1d, 0xa2, 0x74, 0x86, 0x4b, 0x6a, 0x95, 0xe8, 0xe1, 0x4e, 0xe, 0x76, 0xb9, 0x49, 0xa9, 0x5f, 0xa0, 0xa6, 0x63, 0x3c, 0x7e, 0x7e, 0x20, 0x13, 0x4f, 0xbb, 0x66, 0x92, 0xb8, 0x2e, 0xa4, 0xfa, 0x48, 0xcb, 0xae, 0xb9, 0x3c, 0xaf, 0xd3, 0x1f, 0xe1, 0xd5, 0x8d, 0x42, 0x6d, 0xf0, 0xfc, 0x8c, 0xc, 0x0, 0xde, 0x40, 0xab, 0x8b, 0x47, 0x97, 0x4e, 0xa8, 0xcf, 0x8e, 0xdb, 0xa6, 0x8b, 0x20, 0x9, 0x84, 0x7a, 0x66, 0xe5, 0x98, 0x29, 0x2, 0x95, 0xe6, 0x38, 0x32, 0x60, 0x3, 0xe3, 0x9a, 0x1e, 0x54, 0xe8, 0x63, 0x80, 0x48, 0x9c, 0xe7, 0x63, 0x33, 0x6e, 0xa0, 0x65, 0x83, 0xfa, 0xc6, 0xba, 0x7a, 0x43, 0x71, 0x5, 0xf5, 0x68, 0x69, 0x85, 0x9c, 0xba, 0x45, 0xcd, 0x6b, 0xb, 0x19, 0xd1, 0xbb, 0x7f, 0x70, 0x85, 0x92, 0xd1, 0xb4, 0x64, 0x82, 0xb1, 0xe4, 0x62, 0xc5, 0x3c, 0x46, 0x1f, 0x92, 0x31, 0x1c, 0x4e, 0x41, 0x77, 0xf7, 0xe7, 0x87, 0xa2, 0xf, 0x6e, 0xe8, 0x92, 0x3, 0x6b, 0xa, 0xe7, 0xa9, 0x3b, 0x11, 0xda, 0x66, 0x8a, 0x29, 0xda, 0x79, 0xe1, 0x64, 0x8d, 0xe3, 0x54, 0xd4, 0xf5, 0xef, 0x64, 0x87, 0x3b, 0xf4, 0xc2, 0xf4, 0x71, 0x13, 0xa9, 0xe9, 0xe0, 0xa2, 0x6, 0x14, 0xab, 0x5d, 0xa7, 0x96, 0x0, 0xd6, 0xc3, 0xcc, 0x57, 0xed, 0x39, 0x6a, 0x25, 0xcd, 0x76, 0xea, 0xba, 0x3a, 0xf2, 0xa1, 0x95, 0x5d, 0xe5, 0x71, 0xcf, 0x9c, 0x62, 0x9e, 0x6a, 0xfa, 0xd5, 0x31, 0xd1, 0xa8, 0x66, 0x30, 0x33, 0xaa, 0x51, 0x17, 0x13, 0x82, 0x99, 0xc8, 0x14, 0x60, 0x9f, 0x4d, 0x32, 0x6d, 0xda, 0x19, 0x26, 0x21, 0xdc, 0x7e, 0x2e, 0x25, 0x67, 0x72, 0xca, 0xf, 0x92, 0xcd, 0xf6, 0xd6, 0xcb, 0x97, 0x8a, 0x33, 0x58, 0x73, 0x70, 0x91, 0x1d, 0xbf, 0x28, 0x23, 0xa3, 0xc, 0xf1, 0x83, 0xc3, 0xc8, 0x56, 0x77, 0x68, 0xe3, 0x82, 0xba, 0xb9, 0x57, 0x56, 0x57, 0x9c, 0xc3, 0xd6, 0x14, 0x5, 0x3c, 0xb1, 0xaf, 0x93, 0xc8, 0x8a, 0x57, 0x7f, 0x53, 0xfa, 0x2f, 0xaa, 0x6e, 0x66, 0x83, 0xfa, 0x33, 0xd1, 0x21, 0xab, 0x1b, 0x71, 0xb4, 0x7c, 0xda, 0xfd, 0xfb, 0x7f, 0x20, 0xab, 0x5e, 0xd5, 0xca, 0xfd, 0xdd, 0xe0, 0xee, 0xda, 0xba, 0xa8, 0x27, 0x99, 0x97, 0x69, 0xc1, 0x3c, 0x82, 0x8c, 0xa, 0x5c, 0x2d, 0x5b, 0x88, 0x3e, 0x34, 0x35, 0x86, 0x37, 0x46, 0x79, 0xe1, 0xaa, 0x19, 0xfb, 0xaa, 0xde, 0x15, 0x9, 0xd, 0x1a, 0x57, 0xff, 0xb5, 0xf, 0xf3, 0x2b, 0x5a, 0x6a, 0x4d, 0x19, 0x77, 0x71, 0x45, 0xdf, 0x4f, 0xb3, 0xec, 0xf1, 0xeb, 0x18, 0x53, 0x3e, 0x3b, 0x47, 0x8, 0x9a, 0x73, 0xa0, 0x5c, 0x8c, 0x5f, 0xeb, 0xf, 0x3a, 0xc2, 0x43, 0x67, 0xb4, 0x66, 0x67, 0x80, 0x58, 0xe, 0xc1, 0xec, 0x40, 0xd4, 0x22, 0x94, 0xca, 0xf9, 0xe8, 0x92, 0xe4, 0x69, 0x38, 0xbe, 0x67, 0x64, 0xca, 0x50, 0xc7, 0x6, 0x67, 0x42, 0x6e, 0xa3, 0xf0, 0xb7, 0x6c, 0xf2, 0xe8, 0x5f, 0xb1, 0xaf, 0xe7, 0xdb, 0xbb, 0x77, 0xb5, 0xf8, 0xcb, 0x8, 0xc4, 0x75, 0x7e, 0xc0, 0xf9, 0x1c, 0x7f, 0x3c, 0x89, 0x2f, 0xd2, 0x58, 0x3a, 0xe2, 0xf8, 0x91, 0xb6
|
||
|
},
|
||
|
{
|
||
|
input: "testdata/huffman-rand-limit.in",
|
||
|
want: "testdata/huffman-rand-limit.%s.expect",
|
||
|
wantNoInput: "testdata/huffman-rand-limit.%s.expect-noinput",
|
||
|
tokens: []token{0x61, 0x51c00000, 0xa, 0xf8, 0x8b, 0x96, 0x76, 0x48, 0xa, 0x85, 0x94, 0x25, 0x80, 0xaf, 0xc2, 0xfe, 0x8d, 0xe8, 0x20, 0xeb, 0x17, 0x86, 0xc9, 0xb7, 0xc5, 0xde, 0x6, 0xea, 0x7d, 0x18, 0x8b, 0xe7, 0x3e, 0x7, 0xda, 0xdf, 0xff, 0x6c, 0x73, 0xde, 0xcc, 0xe7, 0x6d, 0x8d, 0x4, 0x19, 0x49, 0x7f, 0x47, 0x1f, 0x48, 0x15, 0xb0, 0xe8, 0x9e, 0xf2, 0x31, 0x59, 0xde, 0x34, 0xb4, 0x5b, 0xe5, 0xe0, 0x9, 0x11, 0x30, 0xc2, 0x88, 0x5b, 0x7c, 0x5d, 0x14, 0x13, 0x6f, 0x23, 0xa9, 0xa, 0xbc, 0x2d, 0x23, 0xbe, 0xd9, 0xed, 0x75, 0x4, 0x6c, 0x99, 0xdf, 0xfd, 0x70, 0x66, 0xe6, 0xee, 0xd9, 0xb1, 0x9e, 0x6e, 0x83, 0x59, 0xd5, 0xd4, 0x80, 0x59, 0x98, 0x77, 0x89, 0x43, 0x38, 0xc9, 0xaf, 0x30, 0x32, 0x9a, 0x20, 0x1b, 0x46, 0x3d, 0x67, 0x6e, 0xd7, 0x72, 0x9e, 0x4e, 0x21, 0x4f, 0xc6, 0xe0, 0xd4, 0x7b, 0x4, 0x8d, 0xa5, 0x3, 0xf6, 0x5, 0x9b, 0x6b, 0xdc, 0x2a, 0x93, 0x77, 0x28, 0xfd, 0xb4, 0x62, 0xda, 0x20, 0xe7, 0x1f, 0xab, 0x6b, 0x51, 0x43, 0x39, 0x2f, 0xa0, 0x92, 0x1, 0x6c, 0x75, 0x3e, 0xf4, 0x35, 0xfd, 0x43, 0x2e, 0xf7, 0xa4, 0x75, 0xda, 0xea, 0x9b, 0xa},
|
||
|
},
|
||
|
{
|
||
|
input: "testdata/huffman-shifts.in",
|
||
|
want: "testdata/huffman-shifts.%s.expect",
|
||
|
wantNoInput: "testdata/huffman-shifts.%s.expect-noinput",
|
||
|
tokens: []token{0x31, 0x30, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x52400001, 0xd, 0xa, 0x32, 0x33, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7fc00001, 0x7f400001},
|
||
|
},
|
||
|
{
|
||
|
input: "testdata/huffman-text-shift.in",
|
||
|
want: "testdata/huffman-text-shift.%s.expect",
|
||
|
wantNoInput: "testdata/huffman-text-shift.%s.expect-noinput",
|
||
|
tokens: []token{0x2f, 0x2f, 0x43, 0x6f, 0x70, 0x79, 0x72, 0x69, 0x67, 0x68, 0x74, 0x32, 0x30, 0x30, 0x39, 0x54, 0x68, 0x47, 0x6f, 0x41, 0x75, 0x74, 0x68, 0x6f, 0x72, 0x2e, 0x41, 0x6c, 0x6c, 0x40800016, 0x72, 0x72, 0x76, 0x64, 0x2e, 0xd, 0xa, 0x2f, 0x2f, 0x55, 0x6f, 0x66, 0x74, 0x68, 0x69, 0x6f, 0x75, 0x72, 0x63, 0x63, 0x6f, 0x64, 0x69, 0x67, 0x6f, 0x76, 0x72, 0x6e, 0x64, 0x62, 0x79, 0x42, 0x53, 0x44, 0x2d, 0x74, 0x79, 0x6c, 0x40400020, 0x6c, 0x69, 0x63, 0x6e, 0x74, 0x68, 0x74, 0x63, 0x6e, 0x62, 0x66, 0x6f, 0x75, 0x6e, 0x64, 0x69, 0x6e, 0x74, 0x68, 0x4c, 0x49, 0x43, 0x45, 0x4e, 0x53, 0x45, 0x66, 0x69, 0x6c, 0x2e, 0xd, 0xa, 0xd, 0xa, 0x70, 0x63, 0x6b, 0x67, 0x6d, 0x69, 0x6e, 0x4040000a, 0x69, 0x6d, 0x70, 0x6f, 0x72, 0x74, 0x22, 0x6f, 0x22, 0x4040000c, 0x66, 0x75, 0x6e, 0x63, 0x6d, 0x69, 0x6e, 0x28, 0x29, 0x7b, 0xd, 0xa, 0x9, 0x76, 0x72, 0x62, 0x3d, 0x6d, 0x6b, 0x28, 0x5b, 0x5d, 0x62, 0x79, 0x74, 0x2c, 0x36, 0x35, 0x35, 0x33, 0x35, 0x29, 0xd, 0xa, 0x9, 0x66, 0x2c, 0x5f, 0x3a, 0x3d, 0x6f, 0x2e, 0x43, 0x72, 0x74, 0x28, 0x22, 0x68, 0x75, 0x66, 0x66, 0x6d, 0x6e, 0x2d, 0x6e, 0x75, 0x6c, 0x6c, 0x2d, 0x6d, 0x78, 0x2e, 0x69, 0x6e, 0x22, 0x40800021, 0x2e, 0x57, 0x72, 0x69, 0x74, 0x28, 0x62, 0x29, 0xd, 0xa, 0x7d, 0xd, 0xa, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x58, 0x78, 0x79, 0x7a, 0x21, 0x22, 0x23, 0xc2, 0xa4, 0x25, 0x26, 0x2f, 0x3f, 0x22},
|
||
|
},
|
||
|
{
|
||
|
input: "testdata/huffman-text.in",
|
||
|
want: "testdata/huffman-text.%s.expect",
|
||
|
wantNoInput: "testdata/huffman-text.%s.expect-noinput",
|
||
|
tokens: []token{0x2f, 0x2f, 0x20, 0x43, 0x6f, 0x70, 0x79, 0x72, 0x69, 0x67, 0x68, 0x74, 0x20, 0x32, 0x30, 0x30, 0x39, 0x20, 0x54, 0x68, 0x65, 0x20, 0x47, 0x6f, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f, 0x72, 0x73, 0x2e, 0x20, 0x41, 0x6c, 0x6c, 0x20, 0x4080001e, 0x73, 0x20, 0x72, 0x65, 0x73, 0x65, 0x72, 0x76, 0x65, 0x64, 0x2e, 0xd, 0xa, 0x2f, 0x2f, 0x20, 0x55, 0x73, 0x65, 0x20, 0x6f, 0x66, 0x20, 0x74, 0x68, 0x69, 0x73, 0x20, 0x73, 0x6f, 0x75, 0x72, 0x63, 0x65, 0x20, 0x63, 0x6f, 0x64, 0x65, 0x20, 0x69, 0x73, 0x20, 0x67, 0x6f, 0x76, 0x65, 0x72, 0x6e, 0x65, 0x64, 0x20, 0x62, 0x79, 0x20, 0x61, 0x20, 0x42, 0x53, 0x44, 0x2d, 0x73, 0x74, 0x79, 0x6c, 0x65, 0x40800036, 0x6c, 0x69, 0x63, 0x65, 0x6e, 0x73, 0x65, 0x20, 0x74, 0x68, 0x61, 0x74, 0x20, 0x63, 0x61, 0x6e, 0x20, 0x62, 0x65, 0x20, 0x66, 0x6f, 0x75, 0x6e, 0x64, 0x20, 0x69, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x4c, 0x49, 0x43, 0x45, 0x4e, 0x53, 0x45, 0x20, 0x66, 0x69, 0x6c, 0x65, 0x2e, 0xd, 0xa, 0xd, 0xa, 0x70, 0x61, 0x63, 0x6b, 0x61, 0x67, 0x65, 0x20, 0x6d, 0x61, 0x69, 0x6e, 0x4040000f, 0x69, 0x6d, 0x70, 0x6f, 0x72, 0x74, 0x20, 0x22, 0x6f, 0x73, 0x22, 0x4040000e, 0x66, 0x75, 0x6e, 0x63, 0x4080001b, 0x28, 0x29, 0x20, 0x7b, 0xd, 0xa, 0x9, 0x76, 0x61, 0x72, 0x20, 0x62, 0x20, 0x3d, 0x20, 0x6d, 0x61, 0x6b, 0x65, 0x28, 0x5b, 0x5d, 0x62, 0x79, 0x74, 0x65, 0x2c, 0x20, 0x36, 0x35, 0x35, 0x33, 0x35, 0x29, 0xd, 0xa, 0x9, 0x66, 0x2c, 0x20, 0x5f, 0x20, 0x3a, 0x3d, 0x20, 0x6f, 0x73, 0x2e, 0x43, 0x72, 0x65, 0x61, 0x74, 0x65, 0x28, 0x22, 0x68, 0x75, 0x66, 0x66, 0x6d, 0x61, 0x6e, 0x2d, 0x6e, 0x75, 0x6c, 0x6c, 0x2d, 0x6d, 0x61, 0x78, 0x2e, 0x69, 0x6e, 0x22, 0x4080002a, 0x2e, 0x57, 0x72, 0x69, 0x74, 0x65, 0x28, 0x62, 0x29, 0xd, 0xa, 0x7d, 0xd, 0xa},
|
||
|
},
|
||
|
{
|
||
|
input: "testdata/huffman-zero.in",
|
||
|
want: "testdata/huffman-zero.%s.expect",
|
||
|
wantNoInput: "testdata/huffman-zero.%s.expect-noinput",
|
||
|
tokens: []token{0x30, ml, 0x4b800000},
|
||
|
},
|
||
|
{
|
||
|
input: "",
|
||
|
want: "",
|
||
|
wantNoInput: "testdata/null-long-match.%s.expect-noinput",
|
||
|
tokens: []token{0x0, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, ml, 0x41400000},
|
||
|
},
|
||
|
}
|
||
|
|
||
|
// TestWriteBlock tests if the writeBlock encoding has changed.
|
||
|
// To update the reference files use the "-update" flag on the test.
|
||
|
func TestWriteBlock(t *testing.T) {
|
||
|
for _, test := range writeBlockTests {
|
||
|
testBlock(t, test, "wb")
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// TestWriteBlockDynamic tests if the writeBlockDynamic encoding has changed.
|
||
|
// To update the reference files use the "-update" flag on the test.
|
||
|
func TestWriteBlockDynamic(t *testing.T) {
|
||
|
for _, test := range writeBlockTests {
|
||
|
testBlock(t, test, "dyn")
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// testBlock tests a block against its references,
|
||
|
// or regenerate the references, if "-update" flag is set.
|
||
|
func testBlock(t *testing.T, test huffTest, ttype string) {
|
||
|
if test.want != "" {
|
||
|
test.want = fmt.Sprintf(test.want, ttype)
|
||
|
}
|
||
|
test.wantNoInput = fmt.Sprintf(test.wantNoInput, ttype)
|
||
|
if *update {
|
||
|
if test.input != "" {
|
||
|
t.Logf("Updating %q", test.want)
|
||
|
input, err := ioutil.ReadFile(test.input)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
f, err := os.Create(test.want)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
defer f.Close()
|
||
|
bw := newHuffmanBitWriter(f)
|
||
|
writeToType(t, ttype, bw, test.tokens, input)
|
||
|
}
|
||
|
|
||
|
t.Logf("Updating %q", test.wantNoInput)
|
||
|
f, err := os.Create(test.wantNoInput)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
defer f.Close()
|
||
|
bw := newHuffmanBitWriter(f)
|
||
|
writeToType(t, ttype, bw, test.tokens, nil)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
if test.input != "" {
|
||
|
t.Logf("Testing %q", test.want)
|
||
|
input, err := ioutil.ReadFile(test.input)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
want, err := ioutil.ReadFile(test.want)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
var buf bytes.Buffer
|
||
|
bw := newHuffmanBitWriter(&buf)
|
||
|
writeToType(t, ttype, bw, test.tokens, input)
|
||
|
|
||
|
got := buf.Bytes()
|
||
|
if !bytes.Equal(got, want) {
|
||
|
t.Errorf("writeBlock did not yield expected result for file %q with input. See %q", test.want, test.want+".got")
|
||
|
if err := ioutil.WriteFile(test.want+".got", got, 0666); err != nil {
|
||
|
t.Error(err)
|
||
|
}
|
||
|
}
|
||
|
t.Log("Output ok")
|
||
|
|
||
|
// Test if the writer produces the same output after reset.
|
||
|
buf.Reset()
|
||
|
bw.reset(&buf)
|
||
|
writeToType(t, ttype, bw, test.tokens, input)
|
||
|
bw.flush()
|
||
|
got = buf.Bytes()
|
||
|
if !bytes.Equal(got, want) {
|
||
|
t.Errorf("reset: writeBlock did not yield expected result for file %q with input. See %q", test.want, test.want+".reset.got")
|
||
|
if err := ioutil.WriteFile(test.want+".reset.got", got, 0666); err != nil {
|
||
|
t.Error(err)
|
||
|
}
|
||
|
return
|
||
|
}
|
||
|
t.Log("Reset ok")
|
||
|
testWriterEOF(t, "wb", test, true)
|
||
|
}
|
||
|
t.Logf("Testing %q", test.wantNoInput)
|
||
|
wantNI, err := ioutil.ReadFile(test.wantNoInput)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
var buf bytes.Buffer
|
||
|
bw := newHuffmanBitWriter(&buf)
|
||
|
writeToType(t, ttype, bw, test.tokens, nil)
|
||
|
|
||
|
got := buf.Bytes()
|
||
|
if !bytes.Equal(got, wantNI) {
|
||
|
t.Errorf("writeBlock did not yield expected result for file %q with input. See %q", test.wantNoInput, test.wantNoInput+".got")
|
||
|
if err := ioutil.WriteFile(test.want+".got", got, 0666); err != nil {
|
||
|
t.Error(err)
|
||
|
}
|
||
|
} else if got[0]&1 == 1 {
|
||
|
t.Error("got unexpected EOF")
|
||
|
return
|
||
|
}
|
||
|
|
||
|
t.Log("Output ok")
|
||
|
|
||
|
// Test if the writer produces the same output after reset.
|
||
|
buf.Reset()
|
||
|
bw.reset(&buf)
|
||
|
writeToType(t, ttype, bw, test.tokens, nil)
|
||
|
bw.flush()
|
||
|
got = buf.Bytes()
|
||
|
if !bytes.Equal(got, wantNI) {
|
||
|
t.Errorf("reset: writeBlock did not yield expected result for file %q without input. See %q", test.want, test.want+".reset.got")
|
||
|
if err := ioutil.WriteFile(test.want+".reset.got", got, 0666); err != nil {
|
||
|
t.Error(err)
|
||
|
}
|
||
|
return
|
||
|
}
|
||
|
t.Log("Reset ok")
|
||
|
testWriterEOF(t, "wb", test, false)
|
||
|
}
|
||
|
|
||
|
func writeToType(t *testing.T, ttype string, bw *huffmanBitWriter, tok []token, input []byte) {
|
||
|
switch ttype {
|
||
|
case "wb":
|
||
|
bw.writeBlock(tok, false, input)
|
||
|
case "dyn":
|
||
|
bw.writeBlockDynamic(tok, false, input)
|
||
|
default:
|
||
|
panic("unknown test type")
|
||
|
}
|
||
|
|
||
|
if bw.err != nil {
|
||
|
t.Error(bw.err)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
bw.flush()
|
||
|
if bw.err != nil {
|
||
|
t.Error(bw.err)
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// testWriterEOF tests if the written block contains an EOF marker.
|
||
|
func testWriterEOF(t *testing.T, ttype string, test huffTest, useInput bool) {
|
||
|
if useInput && test.input == "" {
|
||
|
return
|
||
|
}
|
||
|
var input []byte
|
||
|
if useInput {
|
||
|
var err error
|
||
|
input, err = ioutil.ReadFile(test.input)
|
||
|
if err != nil {
|
||
|
t.Error(err)
|
||
|
return
|
||
|
}
|
||
|
}
|
||
|
var buf bytes.Buffer
|
||
|
bw := newHuffmanBitWriter(&buf)
|
||
|
switch ttype {
|
||
|
case "wb":
|
||
|
bw.writeBlock(test.tokens, true, input)
|
||
|
case "dyn":
|
||
|
bw.writeBlockDynamic(test.tokens, true, input)
|
||
|
case "huff":
|
||
|
bw.writeBlockHuff(true, input)
|
||
|
default:
|
||
|
panic("unknown test type")
|
||
|
}
|
||
|
if bw.err != nil {
|
||
|
t.Error(bw.err)
|
||
|
return
|
||
|
}
|
||
|
|
||
|
bw.flush()
|
||
|
if bw.err != nil {
|
||
|
t.Error(bw.err)
|
||
|
return
|
||
|
}
|
||
|
b := buf.Bytes()
|
||
|
if len(b) == 0 {
|
||
|
t.Error("no output received")
|
||
|
return
|
||
|
}
|
||
|
if b[0]&1 != 1 {
|
||
|
t.Errorf("block not marked with EOF for input %q", test.input)
|
||
|
return
|
||
|
}
|
||
|
t.Log("EOF ok")
|
||
|
}
|