mirror of
https://github.com/golang/go
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74 lines
1.5 KiB
Go
74 lines
1.5 KiB
Go
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// Copyright 2011 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 zip
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import (
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"bytes"
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"io/ioutil"
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"rand"
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"testing"
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)
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// TODO(adg): a more sophisticated test suite
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const testString = "Rabbits, guinea pigs, gophers, marsupial rats, and quolls."
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func TestWriter(t *testing.T) {
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largeData := make([]byte, 1<<17)
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for i := range largeData {
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largeData[i] = byte(rand.Int())
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}
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// write a zip file
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buf := new(bytes.Buffer)
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w := NewWriter(buf)
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testCreate(t, w, "foo", []byte(testString), Store)
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testCreate(t, w, "bar", largeData, Deflate)
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if err := w.Close(); err != nil {
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t.Fatal(err)
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}
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// read it back
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r, err := NewReader(sliceReaderAt(buf.Bytes()), int64(buf.Len()))
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if err != nil {
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t.Fatal(err)
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}
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testReadFile(t, r.File[0], []byte(testString))
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testReadFile(t, r.File[1], largeData)
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}
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func testCreate(t *testing.T, w *Writer, name string, data []byte, method uint16) {
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header := &FileHeader{
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Name: name,
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Method: method,
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}
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f, err := w.CreateHeader(header)
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if err != nil {
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t.Fatal(err)
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}
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_, err = f.Write(data)
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if err != nil {
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t.Fatal(err)
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}
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}
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func testReadFile(t *testing.T, f *File, data []byte) {
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rc, err := f.Open()
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if err != nil {
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t.Fatal("opening:", err)
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}
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b, err := ioutil.ReadAll(rc)
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if err != nil {
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t.Fatal("reading:", err)
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}
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err = rc.Close()
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if err != nil {
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t.Fatal("closing:", err)
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}
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if !bytes.Equal(b, data) {
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t.Errorf("File contents %q, want %q", b, data)
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}
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}
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