Fix test

Author: Emmanuel Garcia

packages/shared_preferences/shared_preferences_linux/example/integration_test/shared_preferences_test.dart

@@ -8,7 +8,7 @@ import 'dart:async';
 
 import 'package:flutter_test/flutter_test.dart';
 import 'package:integration_test/integration_test.dart';
-import 'package:shared_preferences_linux/shared_preferences_linux.dart';
+import 'package:shared_preferences_platform_interface/shared_preferences_platform_interface.dart';
 
 void main() {
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
@@ -30,10 +30,12 @@ void main() {
       'flutter.List': <String>['baz', 'quox'],
     };
 
-    SharedPreferencesLinux preferences;
+
+    SharedPreferencesStorePlatform preferences;
 
     setUp(() {
-      preferences = SharedPreferencesLinux();
+      preferences = SharedPreferencesStorePlatform.instance;
+      expect(preferences.runtimeType.toString(), equals('SharedPreferencesLinux'));
     });
 
     tearDown(() async {

packages/shared_preferences/shared_preferences_macos/example/integration_test/shared_preferences_test.dart

@@ -31,7 +31,7 @@ void main() {
 
     SharedPreferencesStorePlatform preferences;
 
-    setUp(() async {
+    setUp(() {
       preferences = SharedPreferencesStorePlatform.instance;
     });
 

packages/shared_preferences/shared_preferences_macos/example/macos/Podfile

@@ -0,0 +1,40 @@
+platform :osx, '10.11'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug' => :debug,
+  'Profile' => :release,
+  'Release' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'ephemeral', 'Flutter-Generated.xcconfig'), __FILE__)
+  unless File.exist?(generated_xcode_build_settings_path)
+    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure \"flutter pub get\" is executed first"
+  end
+
+  File.foreach(generated_xcode_build_settings_path) do |line|
+    matches = line.match(/FLUTTER_ROOT\=(.*)/)
+    return matches[1].strip if matches
+  end
+  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Flutter-Generated.xcconfig, then run \"flutter pub get\""
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_macos_podfile_setup
+
+target 'Runner' do
+  use_frameworks!
+  use_modular_headers!
+
+  flutter_install_all_macos_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_macos_build_settings(target)
+  end
+end

packages/shared_preferences/shared_preferences_windows/example/integration_test/shared_preferences_test.dart

@@ -5,8 +5,8 @@
 // @dart=2.9
 
 import 'package:flutter_test/flutter_test.dart';
-import 'package:shared_preferences_windows/shared_preferences_windows.dart';
 import 'package:integration_test/integration_test.dart';
+import 'package:shared_preferences_platform_interface/shared_preferences_platform_interface.dart';
 
 void main() {
   IntegrationTestWidgetsFlutterBinding.ensureInitialized();
@@ -28,10 +28,11 @@ void main() {
       'flutter.List': <String>['baz', 'quox'],
     };
 
-    SharedPreferencesWindows preferences;
+    SharedPreferencesStorePlatform preferences;
 
     setUp(() {
-      preferences = SharedPreferencesWindows();
+      preferences = SharedPreferencesStorePlatform.instance;
+      expect(preferences.runtimeType.toString(), equals('SharedPreferencesWindows'));
     });
 
     tearDown(() async {