diff --git a/test/nrpn_test.dart b/test/nrpn_test.dart
new file mode 100644
index 0000000..77dea70
--- /dev/null
+++ b/test/nrpn_test.dart
@@ -0,0 +1,31 @@
+import 'package:flutter/widgets.dart';
+import 'package:flutter_midi_command/flutter_midi_command_messages.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  WidgetsFlutterBinding.ensureInitialized();
+
+  test("sends an NRPN message with correct data buffer", () {
+    final m = NRPNMessage(parameter: 4107, value: 0);
+
+    m.send();
+
+    expect(m.data, hasLength(12));
+
+    expect(m.data[0], equals(0xb0));
+    expect(m.data[1], equals(0x63));
+    expect(m.data[2], equals(0x20));
+
+    expect(m.data[3], equals(0xb0));
+    expect(m.data[4], equals(0x62));
+    expect(m.data[5], equals(0x0b));
+
+    expect(m.data[6], equals(0xb0));
+    expect(m.data[7], equals(0x06));
+    expect(m.data[8], equals(0x00));
+
+    expect(m.data[9], equals(0xb0));
+    expect(m.data[10], equals(0x26));
+    expect(m.data[11], equals(0x00));
+  });
+}
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