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// Copyright 2015 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 zipfs
package zipfs
import (
"archive/zip"
"bytes"
"fmt"
"io"
"io/ioutil"
"os"
"reflect"
"testing"
"golang.org/x/tools/godoc/vfs"
)
var (
// files to use to build zip used by zipfs in testing; maps path : contents
files = map[string]string{"foo": "foo", "bar/baz": "baz", "a/b/c": "c"}
// expected info for each entry in a file system described by files
tests = []struct {
Path string
IsDir bool
IsRegular bool
Name string
Contents string
Files map[string]bool
}{
{"/", true, false, "", "", map[string]bool{"foo": true, "bar": true, "a": true}},
{"//", true, false, "", "", map[string]bool{"foo": true, "bar": true, "a": true}},
{"/foo", false, true, "foo", "foo", nil},
{"/foo/", false, true, "foo", "foo", nil},
{"/foo//", false, true, "foo", "foo", nil},
{"/bar", true, false, "bar", "", map[string]bool{"baz": true}},
{"/bar/", true, false, "bar", "", map[string]bool{"baz": true}},
{"/bar/baz", false, true, "baz", "baz", nil},
{"//bar//baz", false, true, "baz", "baz", nil},
{"/a/b", true, false, "b", "", map[string]bool{"c": true}},
}
// to be initialized in setup()
fs vfs.FileSystem
statFuncs []statFunc
)
type statFunc struct {
Name string
Func func(string) (os.FileInfo, error)
}
func TestMain(t *testing.M) {
if err := setup(); err != nil {
fmt.Fprintf(os.Stderr, "Error setting up zipfs testing state: %v.\n", err)
os.Exit(1)
}
os.Exit(t.Run())
}
// setups state each of the tests uses
func setup() error {
// create zipfs
b := new(bytes.Buffer)
zw := zip.NewWriter(b)
for file, contents := range files {
w, err := zw.Create(file)
if err != nil {
return err
}
_, err = io.WriteString(w, contents)
if err != nil {
return err
}
}
zw.Close()
zr, err := zip.NewReader(bytes.NewReader(b.Bytes()), int64(b.Len()))
if err != nil {
return err
}
rc := &zip.ReadCloser{
Reader: *zr,
}
fs = New(rc, "foo")
// pull out different stat functions
statFuncs = []statFunc{
{"Stat", fs.Stat},
{"Lstat", fs.Lstat},
}
return nil
}
func TestZipFSReadDir(t *testing.T) {
for _, test := range tests {
if test.IsDir {
infos, err := fs.ReadDir(test.Path)
if err != nil {
t.Errorf("Failed to read directory %v\n", test.Path)
continue
}
got := make(map[string]bool)
for _, info := range infos {
got[info.Name()] = true
}
if want := test.Files; !reflect.DeepEqual(got, want) {
t.Errorf("ReadDir %v got %v\nwanted %v\n", test.Path, got, want)
}
}
}
}
func TestZipFSStatFuncs(t *testing.T) {
for _, test := range tests {
for _, statFunc := range statFuncs {
// test can stat
info, err := statFunc.Func(test.Path)
if err != nil {
t.Errorf("Unexpected error using %v for %v: %v\n", statFunc.Name, test.Path, err)
continue
}
// test info.Name()
if got, want := info.Name(), test.Name; got != want {
t.Errorf("Using %v for %v info.Name() got %v wanted %v\n", statFunc.Name, test.Path, got, want)
}
// test info.IsDir()
if got, want := info.IsDir(), test.IsDir; got != want {
t.Errorf("Using %v for %v info.IsDir() got %v wanted %v\n", statFunc.Name, test.Path, got, want)
}
// test info.Mode().IsDir()
if got, want := info.Mode().IsDir(), test.IsDir; got != want {
t.Errorf("Using %v for %v info.Mode().IsDir() got %v wanted %v\n", statFunc.Name, test.Path, got, want)
}
// test info.Mode().IsRegular()
if got, want := info.Mode().IsRegular(), test.IsRegular; got != want {
t.Errorf("Using %v for %v info.Mode().IsRegular() got %v wanted %v\n", statFunc.Name, test.Path, got, want)
}
// test info.Size()
if test.IsRegular {
if got, want := info.Size(), int64(len(test.Contents)); got != want {
t.Errorf("Using %v for %v inf.Size() got %v wanted %v", statFunc.Name, test.Path, got, want)
}
}
}
}
}
func TestZipFSNotExist(t *testing.T) {
_, err := fs.Open("/does-not-exist")
if err == nil {
t.Fatalf("Expected an error.\n")
}
if !os.IsNotExist(err) {
t.Errorf("Expected an error satisfying os.IsNotExist: %v\n", err)
}
}
func TestZipFSOpenSeek(t *testing.T) {
for _, test := range tests {
if test.IsRegular {
// test Open()
f, err := fs.Open(test.Path)
if err != nil {
t.Error(err)
return
}
defer f.Close()
// test Seek() multiple times
for i := 0; i < 3; i++ {
all, err := ioutil.ReadAll(f)
if err != nil {
t.Error(err)
return
}
if got, want := string(all), test.Contents; got != want {
t.Errorf("File contents for %v got %v wanted %v\n", test.Path, got, want)
}
f.Seek(0, 0)
}
}
}
}
func TestRootType(t *testing.T) {
tests := []struct {
path string
fsType vfs.RootType
}{
{"/src/net/http", vfs.RootTypeGoRoot},
{"/src/badpath", ""},
{"/", vfs.RootTypeGoRoot},
}
for _, item := range tests {
if fs.RootType(item.path) != item.fsType {
t.Errorf("unexpected fsType. Expected- %v, Got- %v", item.fsType, fs.RootType(item.path))
}
}
}
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