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// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package zip
import (
"bytes"
"io/ioutil"
"rand"
"testing"
)
// TODO(adg): a more sophisticated test suite
const testString = "Rabbits, guinea pigs, gophers, marsupial rats, and quolls."
func TestWriter(t *testing.T) {
largeData := make([]byte, 1<<17)
for i := range largeData {
largeData[i] = byte(rand.Int())
}
// write a zip file
buf := new(bytes.Buffer)
w := NewWriter(buf)
testCreate(t, w, "foo", []byte(testString), Store)
testCreate(t, w, "bar", largeData, Deflate)
if err := w.Close(); err != nil {
t.Fatal(err)
}
// read it back
r, err := NewReader(sliceReaderAt(buf.Bytes()), int64(buf.Len()))
if err != nil {
t.Fatal(err)
}
testReadFile(t, r.File[0], []byte(testString))
testReadFile(t, r.File[1], largeData)
}
func testCreate(t *testing.T, w *Writer, name string, data []byte, method uint16) {
header := &FileHeader{
Name: name,
Method: method,
}
f, err := w.CreateHeader(header)
if err != nil {
t.Fatal(err)
}
_, err = f.Write(data)
if err != nil {
t.Fatal(err)
}
}
func testReadFile(t *testing.T, f *File, data []byte) {
rc, err := f.Open()
if err != nil {
t.Fatal("opening:", err)
}
b, err := ioutil.ReadAll(rc)
if err != nil {
t.Fatal("reading:", err)
}
err = rc.Close()
if err != nil {
t.Fatal("closing:", err)
}
if !bytes.Equal(b, data) {
t.Errorf("File contents %q, want %q", b, data)
}
}
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