Grab downloader

vendor/github.com/cavaliercoder/grab/grabtest/util.go

@@ -0,0 +1,16 @@
+package grabtest
+
+import "encoding/hex"
+
+func MustHexDecodeString(s string) (b []byte) {
+	var err error
+	b, err = hex.DecodeString(s)
+	if err != nil {
+		panic(err)
+	}
+	return
+}
+
+func MustHexEncodeString(b []byte) (s string) {
+	return hex.EncodeToString(b)
+}