test: normalize JSON comparison in generate_command_test

Author: ElectricCookie

test/commands/generate_command_test.dart

@@ -44,9 +44,15 @@ void main() {
       final generatedContent = await File(generatedFilePath).readAsString();
 
       // decode the json to avoid formatting issues
-      final expectedJson = jsonDecode(expectedGeneratedContent);
-      final generatedJson = jsonDecode(generatedContent);
-      expect(generatedJson, expectedJson);
+      final expectedJson = jsonDecode(expectedGeneratedContent) as Map<String, dynamic>;
+      final generatedJson = jsonDecode(generatedContent) as Map<String, dynamic>;
+      
+      // Remove sdkVersion from both JSON objects to ignore SDK version differences
+      // Different Flutter versions generate different SDK constraints
+      final normalizedExpectedJson = removeSdkVersionFromJson(expectedJson);
+      final normalizedGeneratedJson = removeSdkVersionFromJson(generatedJson);
+      
+      expect(normalizedGeneratedJson, normalizedExpectedJson);
     });
   }, timeout: const Timeout(Duration(minutes: 5)));
 }

test/helpers/test_helpers.dart

@@ -53,6 +53,19 @@ String stripChangelog(String changelog) {
       .replaceAll(releasedOnLineRegexp, '');
 }
 
+/// Remove sdkVersion from JSON metadata to ignore SDK version differences in tests.
+/// Different Flutter versions generate different SDK constraints, so we ignore this field
+/// when comparing generated API documentation JSON.
+Map<String, dynamic> removeSdkVersionFromJson(Map<String, dynamic> json) {
+  final result = Map<String, dynamic>.from(json);
+  if (result.containsKey('metadata') && result['metadata'] is Map) {
+    final metadata = Map<String, dynamic>.from(result['metadata'] as Map);
+    metadata.remove('sdkVersion');
+    result['metadata'] = metadata;
+  }
+  return result;
+}
+
 /// Test constants for better maintainability.
 class TestConstants {
   static const String initialVersion = '0.0.1';