init

test/ch934x_serial_method_channel_test.dart

@@ -0,0 +1,26 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:ch934x_serial/ch934x_serial_method_channel.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  MethodChannelCh934xSerial platform = MethodChannelCh934xSerial();
+  const MethodChannel channel = MethodChannel('ch934x_serial');
+
+  setUp(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(channel, (MethodCall methodCall) async {
+          return '42';
+        });
+  });
+
+  tearDown(() {
+    TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger
+        .setMockMethodCallHandler(channel, null);
+  });
+
+  test('getPlatformVersion', () async {
+    expect(await platform.getPlatformVersion(), '42');
+  });
+}

test/ch934x_serial_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:ch934x_serial/ch934x_serial.dart';
+import 'package:ch934x_serial/ch934x_serial_platform_interface.dart';
+import 'package:ch934x_serial/ch934x_serial_method_channel.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+class MockCh934xSerialPlatform
+    with MockPlatformInterfaceMixin
+    implements Ch934xSerialPlatform {
+  @override
+  Future<String?> getPlatformVersion() => Future.value('42');
+}
+
+void main() {
+  final Ch934xSerialPlatform initialPlatform = Ch934xSerialPlatform.instance;
+
+  test('$MethodChannelCh934xSerial is the default instance', () {
+    expect(initialPlatform, isInstanceOf<MethodChannelCh934xSerial>());
+  });
+
+  test('getPlatformVersion', () async {
+    Ch934xSerial ch934xSerialPlugin = Ch934xSerial();
+    MockCh934xSerialPlatform fakePlatform = MockCh934xSerialPlatform();
+    Ch934xSerialPlatform.instance = fakePlatform;
+
+    expect(await ch934xSerialPlugin.getPlatformVersion(), '42');
+  });
+}