mirror of
https://github.com/golang/go
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5a1d3323fe
parsing and printing to new syntax.
Use -oldparser to parse the old syntax,
use -oldprinter to print the old syntax.
2) Change default gofmt formatting settings
to use tabs for indentation only and to use
spaces for alignment. This will make the code
alignment insensitive to an editor's tabwidth.
Use -spaces=false to use tabs for alignment.
3) Manually changed src/exp/parser/parser_test.go
so that it doesn't try to parse the parser's
source files using the old syntax (they have
new syntax now).
4) gofmt -w src misc test/bench
1st set of files.
R=rsc
CC=agl, golang-dev, iant, ken2, r
https://golang.org/cl/180047
107 lines
2.5 KiB
Go
107 lines
2.5 KiB
Go
// Copyright 2009 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 zlib
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import (
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"io"
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"io/ioutil"
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"os"
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"testing"
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)
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var filenames = []string{
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"testdata/e.txt",
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"testdata/pi.txt",
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}
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// Tests that compressing and then decompressing the given file at the given compression level
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// yields equivalent bytes to the original file.
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func testFileLevel(t *testing.T, fn string, level int) {
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// Read the file, as golden output.
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golden, err := os.Open(fn, os.O_RDONLY, 0444)
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if err != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err)
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return
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}
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defer golden.Close()
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// Read the file again, and push it through a pipe that compresses at the write end, and decompresses at the read end.
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raw, err := os.Open(fn, os.O_RDONLY, 0444)
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if err != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err)
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return
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}
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piper, pipew := io.Pipe()
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defer piper.Close()
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go func() {
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defer raw.Close()
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defer pipew.Close()
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zlibw, err := NewDeflaterLevel(pipew, level)
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if err != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err)
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return
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}
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defer zlibw.Close()
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var b [1024]byte
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for {
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n, err0 := raw.Read(&b)
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if err0 != nil && err0 != os.EOF {
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t.Errorf("%s (level=%d): %v", fn, level, err0)
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return
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}
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_, err1 := zlibw.Write(b[0:n])
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if err1 == os.EPIPE {
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// Fail, but do not report the error, as some other (presumably reportable) error broke the pipe.
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return
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}
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if err1 != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err1)
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return
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}
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if err0 == os.EOF {
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break
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}
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}
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}()
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zlibr, err := NewInflater(piper)
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if err != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err)
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return
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}
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defer zlibr.Close()
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// Compare the two.
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b0, err0 := ioutil.ReadAll(golden)
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b1, err1 := ioutil.ReadAll(zlibr)
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if err0 != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err0)
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return
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}
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if err1 != nil {
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t.Errorf("%s (level=%d): %v", fn, level, err1)
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return
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}
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if len(b0) != len(b1) {
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t.Errorf("%s (level=%d): length mismatch %d versus %d", fn, level, len(b0), len(b1))
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return
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}
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for i := 0; i < len(b0); i++ {
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if b0[i] != b1[i] {
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t.Errorf("%s (level=%d): mismatch at %d, 0x%02x versus 0x%02x\n", fn, level, i, b0[i], b1[i])
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return
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}
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}
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}
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func TestWriter(t *testing.T) {
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for _, fn := range filenames {
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testFileLevel(t, fn, DefaultCompression)
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testFileLevel(t, fn, NoCompression)
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for level := BestSpeed; level <= BestCompression; level++ {
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testFileLevel(t, fn, level)
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}
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}
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}
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