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-rw-r--r--src/compress/gzip/example_test.go128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/compress/gzip/example_test.go b/src/compress/gzip/example_test.go
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+++ b/src/compress/gzip/example_test.go
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+// Copyright 2016 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 gzip_test
+
+import (
+ "bytes"
+ "compress/gzip"
+ "fmt"
+ "io"
+ "log"
+ "os"
+ "time"
+)
+
+func Example_writerReader() {
+ var buf bytes.Buffer
+ zw := gzip.NewWriter(&buf)
+
+ // Setting the Header fields is optional.
+ zw.Name = "a-new-hope.txt"
+ zw.Comment = "an epic space opera by George Lucas"
+ zw.ModTime = time.Date(1977, time.May, 25, 0, 0, 0, 0, time.UTC)
+
+ _, err := zw.Write([]byte("A long time ago in a galaxy far, far away..."))
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ if err := zw.Close(); err != nil {
+ log.Fatal(err)
+ }
+
+ zr, err := gzip.NewReader(&buf)
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ fmt.Printf("Name: %s\nComment: %s\nModTime: %s\n\n", zr.Name, zr.Comment, zr.ModTime.UTC())
+
+ if _, err := io.Copy(os.Stdout, zr); err != nil {
+ log.Fatal(err)
+ }
+
+ if err := zr.Close(); err != nil {
+ log.Fatal(err)
+ }
+
+ // Output:
+ // Name: a-new-hope.txt
+ // Comment: an epic space opera by George Lucas
+ // ModTime: 1977-05-25 00:00:00 +0000 UTC
+ //
+ // A long time ago in a galaxy far, far away...
+}
+
+func ExampleReader_Multistream() {
+ var buf bytes.Buffer
+ zw := gzip.NewWriter(&buf)
+
+ var files = []struct {
+ name string
+ comment string
+ modTime time.Time
+ data string
+ }{
+ {"file-1.txt", "file-header-1", time.Date(2006, time.February, 1, 3, 4, 5, 0, time.UTC), "Hello Gophers - 1"},
+ {"file-2.txt", "file-header-2", time.Date(2007, time.March, 2, 4, 5, 6, 1, time.UTC), "Hello Gophers - 2"},
+ }
+
+ for _, file := range files {
+ zw.Name = file.name
+ zw.Comment = file.comment
+ zw.ModTime = file.modTime
+
+ if _, err := zw.Write([]byte(file.data)); err != nil {
+ log.Fatal(err)
+ }
+
+ if err := zw.Close(); err != nil {
+ log.Fatal(err)
+ }
+
+ zw.Reset(&buf)
+ }
+
+ zr, err := gzip.NewReader(&buf)
+ if err != nil {
+ log.Fatal(err)
+ }
+
+ for {
+ zr.Multistream(false)
+ fmt.Printf("Name: %s\nComment: %s\nModTime: %s\n\n", zr.Name, zr.Comment, zr.ModTime.UTC())
+
+ if _, err := io.Copy(os.Stdout, zr); err != nil {
+ log.Fatal(err)
+ }
+
+ fmt.Print("\n\n")
+
+ err = zr.Reset(&buf)
+ if err == io.EOF {
+ break
+ }
+ if err != nil {
+ log.Fatal(err)
+ }
+ }
+
+ if err := zr.Close(); err != nil {
+ log.Fatal(err)
+ }
+
+ // Output:
+ // Name: file-1.txt
+ // Comment: file-header-1
+ // ModTime: 2006-02-01 03:04:05 +0000 UTC
+ //
+ // Hello Gophers - 1
+ //
+ // Name: file-2.txt
+ // Comment: file-header-2
+ // ModTime: 2007-03-02 04:05:06 +0000 UTC
+ //
+ // Hello Gophers - 2
+}