fix: directory lock issue on test_test.dart

Author: omartinma

test/src/commands/test/test_test.dart

@@ -139,7 +139,10 @@ void main() {
       'when no pubspec.yaml exists',
       withRunner((commandRunner, logger, pubUpdater, printLogs) async {
         final tempDirectory = Directory.systemTemp.createTempSync();
-        addTearDown(() => tempDirectory.deleteSync(recursive: true));
+        addTearDown(() {
+          Directory.current = cwd;
+          tempDirectory.deleteSync(recursive: true);
+        });
 
         Directory.current = tempDirectory.path;
         final result = await commandRunner.run(['test']);
@@ -154,7 +157,10 @@ void main() {
       'completes normally when no pubspec.yaml exists (recursive)',
       withRunner((commandRunner, logger, pubUpdater, printLogs) async {
         final tempDirectory = Directory.systemTemp.createTempSync();
-        addTearDown(() => tempDirectory.deleteSync(recursive: true));
+        addTearDown(() {
+          Directory.current = cwd;
+          tempDirectory.deleteSync(recursive: true);
+        });
 
         Directory.current = tempDirectory.path;