1 files changed, 64 insertions, 0 deletions
diff --git a/shiny/materialdesign/icons/icons_test.go b/shiny/materialdesign/icons/icons_test.go
new file mode 100644
index 0000000..feb3df1
--- /dev/null
+++ b/shiny/materialdesign/icons/icons_test.go
@@ -0,0 +1,64 @@
+// Copyright 2016 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 icons
+
+import (
+	"image"
+	"image/draw"
+	"image/png"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"golang.org/x/exp/shiny/iconvg"
+)
+
+func encodePNG(dstFilename string, src image.Image) error {
+	f, err := os.Create(dstFilename)
+	if err != nil {
+		return err
+	}
+	encErr := png.Encode(f, src)
+	closeErr := f.Close()
+	if encErr != nil {
+		return encErr
+	}
+	return closeErr
+}
+
+func TestManualInspection(t *testing.T) {
+	// Set this to a non-empty string such as "/tmp/mdicons" to manually
+	// inspect the icons.
+	const tmpDir = ""
+
+	if tmpDir == "" {
+		t.Skip("no tmpDir specified")
+	}
+	t.Errorf("tmpDir %q is a non-empty string; do not commit code changes", tmpDir)
+
+	dst := image.NewAlpha(image.Rect(0, 0, 256, 256))
+	z := &iconvg.Rasterizer{}
+	z.SetDstImage(dst, dst.Bounds(), draw.Src)
+	for _, v := range list {
+		if err := iconvg.Decode(z, v.data, nil); err != nil {
+			t.Errorf("%q: %v", v.name, err)
+			continue
+		}
+		filename := filepath.Join(tmpDir, v.name+".png")
+		if err := encodePNG(filename, dst); err != nil {
+			t.Error(err)
+		}
+		t.Logf("wrote %s", filename)
+	}
+}
+
+func TestDecodeAll(t *testing.T) {
+	for _, v := range list {
+		if err := iconvg.Decode(nil, v.data, nil); err != nil {
+			t.Errorf("%q: %v", v.name, err)
+			continue
+		}
+	}
+}