Add integration_test to flavor test project (#92520)

dev/integration_tests/flavors/ios/Flutter/Debug.xcconfig

+// This xcconfig used for both the paid and free flavor, but the plugins are not different between
+// them. Pick one.
+#include? "Pods/Target Support Files/Pods-Free App/Pods-Free App.debug free.xcconfig"
 #include "Generated.xcconfig"

dev/integration_tests/flavors/ios/Flutter/Release.xcconfig

+// This xcconfig used for both the paid and free flavor, but the plugins are not different between
+// them. Pick one.
+#include? "Pods/Target Support Files/Pods-Free App/Pods-Free App.release free.xcconfig"
 #include "Generated.xcconfig"

dev/integration_tests/flavors/ios/Podfile

+# Uncomment this line to define a global platform for your project
+# platform :ios, '9.0'
+
+# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
+ENV['COCOAPODS_DISABLE_STATS'] = 'true'
+
+project 'Runner', {
+  'Debug Free' => :debug,
+  'Debug Paid' => :release,
+  'Release Free' => :release,
+  'Release Paid' => :release,
+}
+
+def flutter_root
+  generated_xcode_build_settings_path = File.expand_path(File.join('..', '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 Generated.xcconfig, then run flutter pub get"
+end
+
+require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)
+
+flutter_ios_podfile_setup
+
+target 'Free App' do
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+target 'Paid App' do
+  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
+end
+
+post_install do |installer|
+  installer.pods_project.targets.each do |target|
+    flutter_additional_ios_build_settings(target)
+  end
+end

dev/integration_tests/flavors/ios/Runner.xcworkspace/contents.xcworkspacedata

@@ -4,4 +4,7 @@
    <FileRef
       location = "group:Runner.xcodeproj">
    </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
 </Workspace>

dev/integration_tests/flavors/pubspec.yaml

@@ -9,6 +9,8 @@ dependencies:
     sdk: flutter
   flutter_driver:
     sdk: flutter
+  integration_test:
+    sdk: flutter
   test: 1.17.12
 
   _fe_analyzer_shared: 29.0.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
@@ -64,6 +66,10 @@ dependencies:
   webkit_inspection_protocol: 1.0.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
   yaml: 3.1.0 # THIS LINE IS AUTOGENERATED - TO UPDATE USE "flutter update-packages --force-upgrade"
 
+dev_dependencies:
+  flutter_test:
+    sdk: flutter
+
 flutter:
   uses-material-design: true
 

packages/flutter_tools/lib/src/macos/cocoapods.dart

@@ -275,7 +275,7 @@ class CocoaPods {
       final String includeFile = 'Pods/Target Support Files/Pods-Runner/Pods-Runner.${mode
           .toLowerCase()}.xcconfig';
       final String include = '#include? "$includeFile"';
-      if (!content.contains(includeFile)) {
+      if (!content.contains('Pods/Target Support Files/Pods-')) {
         file.writeAsStringSync('$include\n$content', flush: true);
       }
     }

packages/flutter_tools/test/general.shard/macos/cocoapods_test.dart

@@ -287,6 +287,32 @@ void main() {
       expect(releaseContents, isNot(contains('#include?')));
       expect(releaseContents, equals(legacyReleaseInclude));
     });
+
+    testUsingContext('does not include Pod config in xcconfig files, if flavor include present', () async {
+      final FlutterProject projectUnderTest = setupProjectUnderTest();
+      projectUnderTest.ios.podfile..createSync()..writeAsStringSync('Existing Podfile');
+
+      const String flavorDebugInclude = '#include? "Pods/Target Support Files/Pods-Free App/Pods-Free App.debug free.xcconfig"';
+      projectUnderTest.ios.xcodeConfigFor('Debug')
+        ..createSync(recursive: true)
+        ..writeAsStringSync(flavorDebugInclude);
+      const String flavorReleaseInclude = '#include? "Pods/Target Support Files/Pods-Free App/Pods-Free App.release free.xcconfig"';
+      projectUnderTest.ios.xcodeConfigFor('Release')
+        ..createSync(recursive: true)
+        ..writeAsStringSync(flavorReleaseInclude);
+
+      final FlutterProject project = FlutterProject.fromDirectoryTest(fileSystem.directory('project'));
+      await cocoaPodsUnderTest.setupPodfile(project.ios);
+
+      final String debugContents = projectUnderTest.ios.xcodeConfigFor('Debug').readAsStringSync();
+      // Redundant contains check, but this documents what we're testing--that the optional
+      // #include? doesn't get written in addition to the previous style #include.
+      expect(debugContents, isNot(contains('Pods-Runner/Pods-Runner.debug')));
+      expect(debugContents, equals(flavorDebugInclude));
+      final String releaseContents = projectUnderTest.ios.xcodeConfigFor('Release').readAsStringSync();
+      expect(releaseContents, isNot(contains('Pods-Runner/Pods-Runner.release')));
+      expect(releaseContents, equals(flavorReleaseInclude));
+    });
   });
 
   group('Update xcconfig', () {