initial commit

vendor/golang.org/x/image/bmp/writer_test.go

@@ -0,0 +1,56 @@
+// Copyright 2013 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 bmp
+
+import (
+	"bytes"
+	"image"
+	"io/ioutil"
+	"os"
+	"testing"
+)
+
+func openImage(filename string) (image.Image, error) {
+	f, err := os.Open(testdataDir + filename)
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+	return Decode(f)
+}
+
+func TestEncode(t *testing.T) {
+	img0, err := openImage("video-001.bmp")
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	buf := new(bytes.Buffer)
+	err = Encode(buf, img0)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	img1, err := Decode(buf)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	compare(t, img0, img1)
+}
+
+// BenchmarkEncode benchmarks the encoding of an image.
+func BenchmarkEncode(b *testing.B) {
+	img, err := openImage("video-001.bmp")
+	if err != nil {
+		b.Fatal(err)
+	}
+	s := img.Bounds().Size()
+	b.SetBytes(int64(s.X * s.Y * 4))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		Encode(ioutil.Discard, img)
+	}
+}