diff --git a/common/coords_test.go b/common/coords_test.go
index 9ff5f4a..05dd93f 100644
--- a/common/coords_test.go
+++ b/common/coords_test.go
@@ -1,3 +1,7 @@
+// Copyright 2014 by Sascha L. Teichmann
+// Use of this source code is governed by the MIT license
+// that can be found in the LICENSE file.
+
 package common
 
 import "testing"
@@ -45,18 +49,32 @@ func checkEncodeDecode(
 func TestEncodeDecode(t *testing.T) {
 	allData(func(c Coord) {
 		checkEncodeDecode(
-			"Big endian",
+			"Big endian - interleaved",
 			CoordToInterleaved,
 			EncodeToBigEndian, DecodeFromBigEndian,
 			c, t)
 	})
 	allData(func(c Coord) {
 		checkEncodeDecode(
-			"String",
+			"String - interleaved",
 			CoordToInterleaved,
 			EncodeStringToBytes, DecodeStringFromBytes,
 			c, t)
 	})
+	allData(func(c Coord) {
+		checkEncodeDecode(
+			"Big endian - plain",
+			CoordToPlain,
+			EncodeToBigEndian, DecodeFromBigEndian,
+			c, t)
+	})
+	allData(func(c Coord) {
+		checkEncodeDecode(
+			"String - plain",
+			CoordToPlain,
+			EncodeStringToBytes, DecodeStringFromBytes,
+			c, t)
+	})
 }
 
 func checkJoinSplit(