init

test/keyboard_height_plugin_method_channel_test.dart

@@ -0,0 +1,24 @@
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:keyboard_height_plugin/keyboard_height_plugin_method_channel.dart';
+
+void main() {
+  MethodChannelKeyboardHeightPlugin platform = MethodChannelKeyboardHeightPlugin();
+  const MethodChannel channel = MethodChannel('keyboard_height_plugin');
+
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  setUp(() {
+    channel.setMockMethodCallHandler((MethodCall methodCall) async {
+      return '42';
+    });
+  });
+
+  tearDown(() {
+    channel.setMockMethodCallHandler(null);
+  });
+
+  test('getPlatformVersion', () async {
+    expect(await platform.getPlatformVersion(), '42');
+  });
+}

test/keyboard_height_plugin_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:keyboard_height_plugin/keyboard_height_plugin.dart';
+import 'package:keyboard_height_plugin/keyboard_height_plugin_platform_interface.dart';
+import 'package:keyboard_height_plugin/keyboard_height_plugin_method_channel.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+
+class MockKeyboardHeightPluginPlatform
+    with MockPlatformInterfaceMixin
+    implements KeyboardHeightPluginPlatform {
+
+  @override
+  Future<String?> getPlatformVersion() => Future.value('42');
+}
+
+void main() {
+  final KeyboardHeightPluginPlatform initialPlatform = KeyboardHeightPluginPlatform.instance;
+
+  test('$MethodChannelKeyboardHeightPlugin is the default instance', () {
+    expect(initialPlatform, isInstanceOf<MethodChannelKeyboardHeightPlugin>());
+  });
+
+  test('getPlatformVersion', () async {
+    KeyboardHeightPlugin keyboardHeightPlugin = KeyboardHeightPlugin();
+    MockKeyboardHeightPluginPlatform fakePlatform = MockKeyboardHeightPluginPlatform();
+    KeyboardHeightPluginPlatform.instance = fakePlatform;
+
+    expect(await keyboardHeightPlugin.getPlatformVersion(), '42');
+  });
+}