1 files changed, 91 insertions, 0 deletions
diff --git a/vendor/golang.org/x/image/bmp/writer_test.go b/vendor/golang.org/x/image/bmp/writer_test.go
new file mode 100644
index 000000000..9e5a32741
--- /dev/null
+++ b/vendor/golang.org/x/image/bmp/writer_test.go
@@ -0,0 +1,91 @@
+// 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"
+	"fmt"
+	"image"
+	"io/ioutil"
+	"os"
+	"testing"
+	"time"
+)
+
+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)
+}
+
+// TestZeroWidthVeryLargeHeight tests that encoding and decoding a degenerate
+// image with zero width but over one billion pixels in height is faster than
+// naively calling an io.Reader or io.Writer method once per row.
+func TestZeroWidthVeryLargeHeight(t *testing.T) {
+	c := make(chan error, 1)
+	go func() {
+		b := image.Rect(0, 0, 0, 0x3fffffff)
+		var buf bytes.Buffer
+		if err := Encode(&buf, image.NewRGBA(b)); err != nil {
+			c <- err
+			return
+		}
+		m, err := Decode(&buf)
+		if err != nil {
+			c <- err
+			return
+		}
+		if got := m.Bounds(); got != b {
+			c <- fmt.Errorf("bounds: got %v, want %v", got, b)
+			return
+		}
+		c <- nil
+	}()
+	select {
+	case err := <-c:
+		if err != nil {
+			t.Fatal(err)
+		}
+	case <-time.After(3 * time.Second):
+		t.Fatalf("timed out")
+	}
+}
+
+// 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)
+	}
+}