diff options
Diffstat (limited to 'vendor/golang.org/x/image/tiff/writer_test.go')
-rw-r--r-- | vendor/golang.org/x/image/tiff/writer_test.go | 95 |
1 files changed, 0 insertions, 95 deletions
diff --git a/vendor/golang.org/x/image/tiff/writer_test.go b/vendor/golang.org/x/image/tiff/writer_test.go deleted file mode 100644 index c8fb7bf37..000000000 --- a/vendor/golang.org/x/image/tiff/writer_test.go +++ /dev/null @@ -1,95 +0,0 @@ -// Copyright 2012 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 tiff - -import ( - "bytes" - "image" - "io/ioutil" - "os" - "testing" -) - -var roundtripTests = []struct { - filename string - opts *Options -}{ - {"video-001.tiff", nil}, - {"video-001-16bit.tiff", nil}, - {"video-001-gray.tiff", nil}, - {"video-001-gray-16bit.tiff", nil}, - {"video-001-paletted.tiff", nil}, - {"bw-packbits.tiff", nil}, - {"video-001.tiff", &Options{Predictor: true}}, - {"video-001.tiff", &Options{Compression: Deflate}}, - {"video-001.tiff", &Options{Predictor: true, Compression: Deflate}}, -} - -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 TestRoundtrip(t *testing.T) { - for _, rt := range roundtripTests { - img, err := openImage(rt.filename) - if err != nil { - t.Fatal(err) - } - out := new(bytes.Buffer) - err = Encode(out, img, rt.opts) - if err != nil { - t.Fatal(err) - } - - img2, err := Decode(&buffer{buf: out.Bytes()}) - if err != nil { - t.Fatal(err) - } - compare(t, img, img2) - } -} - -// TestRoundtrip2 tests that encoding and decoding an image whose -// origin is not (0, 0) gives the same thing. -func TestRoundtrip2(t *testing.T) { - m0 := image.NewRGBA(image.Rect(3, 4, 9, 8)) - for i := range m0.Pix { - m0.Pix[i] = byte(i) - } - out := new(bytes.Buffer) - if err := Encode(out, m0, nil); err != nil { - t.Fatal(err) - } - m1, err := Decode(&buffer{buf: out.Bytes()}) - if err != nil { - t.Fatal(err) - } - compare(t, m0, m1) -} - -func benchmarkEncode(b *testing.B, name string, pixelSize int) { - img, err := openImage(name) - if err != nil { - b.Fatal(err) - } - s := img.Bounds().Size() - b.SetBytes(int64(s.X * s.Y * pixelSize)) - b.ResetTimer() - for i := 0; i < b.N; i++ { - Encode(ioutil.Discard, img, nil) - } -} - -func BenchmarkEncode(b *testing.B) { benchmarkEncode(b, "video-001.tiff", 4) } -func BenchmarkEncodePaletted(b *testing.B) { benchmarkEncode(b, "video-001-paletted.tiff", 1) } -func BenchmarkEncodeGray(b *testing.B) { benchmarkEncode(b, "video-001-gray.tiff", 1) } -func BenchmarkEncodeGray16(b *testing.B) { benchmarkEncode(b, "video-001-gray-16bit.tiff", 2) } -func BenchmarkEncodeRGBA(b *testing.B) { benchmarkEncode(b, "video-001.tiff", 4) } -func BenchmarkEncodeRGBA64(b *testing.B) { benchmarkEncode(b, "video-001-16bit.tiff", 8) } |