Move empty_catches tests (#4489)

test/rules/all.dart

diff --git a/test/rules/all.dart b/test/rules/all.dart
index fe28e33..28de7cb 100644
--- a/test/rules/all.dart
+++ b/test/rules/all.dart
@@ -49,6 +49,7 @@
     as deprecated_member_use_from_same_package;
 import 'directives_ordering_test.dart' as directives_ordering;
 import 'discarded_futures_test.dart' as discarded_futures;
+import 'empty_catches_test.dart' as empty_catches;
 import 'empty_statements_test.dart' as empty_statements;
 import 'eol_at_end_of_file_test.dart' as eol_at_end_of_file;
 import 'exhaustive_cases_test.dart' as exhaustive_cases;
@@ -187,6 +188,7 @@
   deprecated_member_use_from_same_package.main();
   directives_ordering.main();
   discarded_futures.main();
+  empty_catches.main();
   empty_statements.main();
   eol_at_end_of_file.main();
   exhaustive_cases.main();

test/rules/empty_catches_test.dart

diff --git a/test/rules/empty_catches_test.dart b/test/rules/empty_catches_test.dart
new file mode 100644
index 0000000..07c8e31
--- /dev/null
+++ b/test/rules/empty_catches_test.dart
@@ -0,0 +1,64 @@
+// Copyright (c) 2023, the Dart project authors. Please see the AUTHORS file
+// for details. All rights reserved. Use of this source code is governed by a
+// BSD-style license that can be found in the LICENSE file.
+
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import '../rule_test_support.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(EmptyCatchesTest);
+  });
+}
+
+@reflectiveTest
+class EmptyCatchesTest extends LintRuleTest {
+  @override
+  String get lintRule => 'empty_catches';
+  test_comment() async {
+    await assertNoDiagnostics(r'''
+void foo() {
+  try {
+    throw new Exception();
+  } catch (e) {
+    // Nothing.
+  }
+}
+''');
+  }
+
+  test_emptyCatch() async {
+    await assertDiagnostics(r'''
+void foo() {
+  try {
+    throw Exception();
+  } catch (e) {}
+}
+''', [
+      lint(58, 2),
+    ]);
+  }
+
+  test_statement() async {
+    await assertNoDiagnostics(r'''
+void foo() {
+  try {
+    throw new Exception();
+  } catch (e) {
+    print(e);
+  }
+}
+''');
+  }
+
+  test_underscore() async {
+    await assertNoDiagnostics(r'''
+void foo() {
+  try {
+    throw Exception();
+  } catch (_) {}
+}
+''');
+  }
+}

test_data/rules/empty_catches.dart

diff --git a/test_data/rules/empty_catches.dart b/test_data/rules/empty_catches.dart
deleted file mode 100644
index 26e3009..0000000
--- a/test_data/rules/empty_catches.dart
+++ /dev/null
@@ -1,28 +0,0 @@
-// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-// test w/ `dart test -N empty_catches`
-
-void foo() {
-  try {
-    throw new Exception();
-  } catch (_) { } //OK
-
-  try {
-    throw new Exception();
-  } catch (e) { } //LINT
-
-  try {
-    throw new Exception();
-  } catch (e) {
-    // Nothing.
-  } //OK!
-
-  try {
-    throw new Exception();
-  } catch (e) {
-    print(e);
-  } //OK
-
-}