make language nullable

2021-07-28 11:20:07 +02:00
parent ba251e4d88
commit fe7a8a1ed0
7 changed files with 82 additions and 28 deletions
@@ -0,0 +1,58 @@
+import 'dart:async';
+import 'dart:typed_data';
+
+import 'package:flutter/foundation.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:golden_toolkit/golden_toolkit.dart';
+import 'package:golden_toolkit/src/testing_tools.dart';
+import 'package:path/path.dart' as path;
+
+const double _kGoldenDiffTolerance = 0.05;
+
+/// Wrapper function for golden tests.
+Future<void> customExpectGoldenMatches(
+  WidgetTester tester,
+  String name, {
+  bool? autoHeight,
+  Finder? finder,
+  CustomPump? customPump,
+  @Deprecated('''
+This method level parameter will be removed in an upcoming release. This can be configured globally. If you have concerns, please file an issue with your use case.''') bool? skip,
+}) {
+  final goldenPath = path.join('test/src/goldens');
+  print('goldenPath: $goldenPath');
+  goldenFileComparator = CustomGoldenFileComparator(Uri.parse(goldenPath));
+
+  return compareWithGolden(
+    tester,
+    name,
+    autoHeight: autoHeight,
+    finder: finder,
+    customPump: customPump,
+    skip: skip,
+    // This value is actually ignored. We are forced to pass it because the
+    // downstream API is structured poorly. This should be refactored.
+    device: Device.phone,
+    fileNameFactory: (String name, Device device) =>
+        GoldenToolkit.configuration.fileNameFactory(name),
+  );
+}
+
+class CustomGoldenFileComparator extends LocalFileComparator {
+  CustomGoldenFileComparator(Uri testFile) : super(testFile);
+
+  @override
+  Future<bool> compare(Uint8List imageBytes, Uri golden) async {
+    print('golden.toString(): ${golden.toString()}');
+    final result = await GoldenFileComparator.compareLists(
+      imageBytes,
+      await getGoldenBytes(golden),
+    );
+
+    if (!result.passed && result.diffPercent > _kGoldenDiffTolerance) {
+      final error = await generateFailureOutput(result, golden, basedir);
+      throw FlutterError(error);
+    }
+    return result.passed;
+  }
+}