1 files changed, 65 insertions, 0 deletions
diff --git a/src/pkg/compress/gzip/gzip_test.go b/src/pkg/compress/gzip/gzip_test.go
new file mode 100644
index 000000000..292e2b691
--- /dev/null
+++ b/src/pkg/compress/gzip/gzip_test.go
@@ -0,0 +1,65 @@
+// Copyright 2010 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
+
+import (
+	"io"
+	"io/ioutil"
+	"strings"
+	"testing"
+)
+
+// Tests that gzipping and then gunzipping is the identity function.
+func TestWriter(t *testing.T) {
+	// Set up the Pipe to do the gzip and gunzip.
+	piper, pipew := io.Pipe()
+	defer piper.Close()
+	go func() {
+		defer pipew.Close()
+		deflater, err := NewDeflater(pipew)
+		if err != nil {
+			t.Errorf("%v", err)
+			return
+		}
+		defer deflater.Close()
+		deflater.Comment = "comment"
+		deflater.Extra = strings.Bytes("extra")
+		deflater.Mtime = 1e8
+		deflater.Name = "name"
+		_, err = deflater.Write(strings.Bytes("payload"))
+		if err != nil {
+			t.Errorf("%v", err)
+			return
+		}
+	}()
+	inflater, err := NewInflater(piper)
+	if err != nil {
+		t.Errorf("%v", err)
+		return
+	}
+	defer inflater.Close()
+
+	// Read and compare to the original input.
+	b, err := ioutil.ReadAll(inflater)
+	if err != nil {
+		t.Errorf(": %v", err)
+		return
+	}
+	if string(b) != "payload" {
+		t.Fatalf("payload is %q, want %q", string(b), "payload")
+	}
+	if inflater.Comment != "comment" {
+		t.Fatalf("comment is %q, want %q", inflater.Comment, "comment")
+	}
+	if string(inflater.Extra) != "extra" {
+		t.Fatalf("extra is %q, want %q", inflater.Extra, "extra")
+	}
+	if inflater.Mtime != 1e8 {
+		t.Fatalf("mtime is %d, want %d", inflater.Mtime, uint32(1e8))
+	}
+	if inflater.Name != "name" {
+		t.Fatalf("name is %q, want %q", inflater.Name, "name")
+	}
+}