writeOptimizedFile method

String writeOptimizedFile(Iterable<String> files, { required String testDir, })

The files param's key is the value of the type of test

The base values for this are dart for dart tests and flutter for flutter tests.

When these values are different, it is because flutter has specific tests to be run. Such as LiveTestWidgetsFlutterBinding, the value would be live

Implementation

String writeOptimizedFile(
  Iterable<String> files, {
  required String testDir,
}) {
  ({String packageName, String barrelFile})? exportFile;

  if (PubspecYamlImpl(fs: fs).parse()?['name']
      case final String packageName) {
    final possibleNames = [
      packageName,
      fs.currentDirectory.basename,
    ];

    for (final name in possibleNames) {
      if (path.join('lib', '$name.dart') case final path
          when fs.file(path).existsSync()) {
        exportFile = (packageName: packageName, barrelFile: '$name.dart');
      }
    }
  }

  final optimizedPath = path.join(testDir, '$optimizedTestBasename.dart');
  fs.file(optimizedPath).createSync(recursive: true);

  final testDirs = files.map(
    (e) => Testable(
      absolute: e,
      optimizedPath: optimizedPath,
    ),
  );

  final content = writeOptimizedTestFile(
    testDirs,
    barrelFile: exportFile,
  );

  fs.file(optimizedPath).writeAsStringSync(content);

  return optimizedPath;
}