Subversion Repositories openrisc

// 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"
        "math/rand"
        "os"
        "testing"
)

// TODO(adg): a more sophisticated test suite

type WriteTest struct {
        Name   string
        Data   []byte
        Method uint16
        Mode   os.FileMode
}

var writeTests = []WriteTest{
        {
                Name:   "foo",
                Data:   []byte("Rabbits, guinea pigs, gophers, marsupial rats, and quolls."),
                Method: Store,
                Mode:   0666,
        },
        {
                Name:   "bar",
                Data:   nil, // large data set in the test
                Method: Deflate,
                Mode:   0644,
        },
        {
                Name:   "setuid",
                Data:   []byte("setuid file"),
                Method: Deflate,
                Mode:   0755 | os.ModeSetuid,
        },
        {
                Name:   "setgid",
                Data:   []byte("setgid file"),
                Method: Deflate,
                Mode:   0755 | os.ModeSetgid,
        },
        {
                Name:   "symlink",
                Data:   []byte("../link/target"),
                Method: Deflate,
                Mode:   0755 | os.ModeSymlink,
        },
}

func TestWriter(t *testing.T) {
        largeData := make([]byte, 1<<17)
        for i := range largeData {
                largeData[i] = byte(rand.Int())
        }
        writeTests[1].Data = largeData
        defer func() {
                writeTests[1].Data = nil
        }()

        // write a zip file
        buf := new(bytes.Buffer)
        w := NewWriter(buf)

        for _, wt := range writeTests {
                testCreate(t, w, &wt)
        }

        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)
        }
        for i, wt := range writeTests {
                testReadFile(t, r.File[i], &wt)
        }
}

func testCreate(t *testing.T, w *Writer, wt *WriteTest) {
        header := &FileHeader{
                Name:   wt.Name,
                Method: wt.Method,
        }
        if wt.Mode != 0 {
                header.SetMode(wt.Mode)
        }
        f, err := w.CreateHeader(header)
        if err != nil {
                t.Fatal(err)
        }
        _, err = f.Write(wt.Data)
        if err != nil {
                t.Fatal(err)
        }
}

func testReadFile(t *testing.T, f *File, wt *WriteTest) {
        if f.Name != wt.Name {
                t.Fatalf("File name: got %q, want %q", f.Name, wt.Name)
        }
        testFileMode(t, f, wt.Mode)
        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, wt.Data) {
                t.Errorf("File contents %q, want %q", b, wt.Data)
        }
}