diff --git a/test/core/codec_test.dart b/test/core/codec_test.dart
index a0d86da9..e32dc900 100644
--- a/test/core/codec_test.dart
+++ b/test/core/codec_test.dart
@@ -75,11 +75,12 @@ void main() {
   group('CborCodec should', () {
     test('convert bytes to values and back', () {
       final cborCodec = CborCodec();
-      const testValue = 'foo';
+      const testValue = {
+        'foo': ['bar', 'baz'],
+      };
 
       final convertedBytes = cborCodec
-          .valueToBytes(DataSchemaValue.fromString(testValue), null, {});
-      expect(convertedBytes, [99, 102, 111, 111]);
+          .valueToBytes(DataSchemaValue.fromObject(testValue), null, {});
 
       final convertedValue = cborCodec.bytesToValue(convertedBytes, null, {});
       expect(convertedValue?.value, testValue);