Add Uint8List test case to dart_bit_buffer_test for bit buffer validation.

Author: halifox

test/dart_bit_buffer_test.dart

@@ -1,3 +1,5 @@
+import 'dart:typed_data';
+
 import 'package:bit_buffer/bit_buffer.dart';
 import 'package:test/test.dart';
 
@@ -19,6 +21,13 @@ main() {
       expect(() => buffer.setBit(129, 0), throwsA(isA<RangeError>()));
     });
 
+    test("Uint8List", () {
+      var data = Uint8List.fromList([1, 2, 3, 4, 5, 6, 7]);
+      var bitBuffer = BitBuffer.formUInt8List(data);
+      var uInt8List = bitBuffer.toUInt8List();
+      expect(data, uInt8List);
+    });
+
     test("int64 msb", () {
       void testInt(int value, String binaryString) {
         BitBuffer buffer = BitBuffer();