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-rw-r--r--vendor/golang.org/x/image/bmp/reader_test.go75
1 files changed, 75 insertions, 0 deletions
diff --git a/vendor/golang.org/x/image/bmp/reader_test.go b/vendor/golang.org/x/image/bmp/reader_test.go
new file mode 100644
index 0000000..fd6ff64
--- /dev/null
+++ b/vendor/golang.org/x/image/bmp/reader_test.go
@@ -0,0 +1,75 @@
+// 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 bmp
+
+import (
+ "fmt"
+ "image"
+ "os"
+ "testing"
+
+ _ "image/png"
+)
+
+const testdataDir = "../testdata/"
+
+func compare(t *testing.T, img0, img1 image.Image) error {
+ b := img1.Bounds()
+ if !b.Eq(img0.Bounds()) {
+ return fmt.Errorf("wrong image size: want %s, got %s", img0.Bounds(), b)
+ }
+ for y := b.Min.Y; y < b.Max.Y; y++ {
+ for x := b.Min.X; x < b.Max.X; x++ {
+ c0 := img0.At(x, y)
+ c1 := img1.At(x, y)
+ r0, g0, b0, a0 := c0.RGBA()
+ r1, g1, b1, a1 := c1.RGBA()
+ if r0 != r1 || g0 != g1 || b0 != b1 || a0 != a1 {
+ return fmt.Errorf("pixel at (%d, %d) has wrong color: want %v, got %v", x, y, c0, c1)
+ }
+ }
+ }
+ return nil
+}
+
+// TestDecode tests that decoding a PNG image and a BMP image result in the
+// same pixel data.
+func TestDecode(t *testing.T) {
+ testCases := []string{
+ "video-001",
+ "yellow_rose-small",
+ }
+
+ for _, tc := range testCases {
+ f0, err := os.Open(testdataDir + tc + ".png")
+ if err != nil {
+ t.Errorf("%s: Open PNG: %v", tc, err)
+ continue
+ }
+ defer f0.Close()
+ img0, _, err := image.Decode(f0)
+ if err != nil {
+ t.Errorf("%s: Decode PNG: %v", tc, err)
+ continue
+ }
+
+ f1, err := os.Open(testdataDir + tc + ".bmp")
+ if err != nil {
+ t.Errorf("%s: Open BMP: %v", tc, err)
+ continue
+ }
+ defer f1.Close()
+ img1, _, err := image.Decode(f1)
+ if err != nil {
+ t.Errorf("%s: Decode BMP: %v", tc, err)
+ continue
+ }
+
+ if err := compare(t, img0, img1); err != nil {
+ t.Errorf("%s: %v", tc, err)
+ continue
+ }
+ }
+}