Add tests for prefer-match-file-name rule

lint_test/analysis_options.yaml

@@ -52,3 +52,4 @@ custom_lint:
     - prefer-conditional-expressions
     - prefer-first
     - prefer-last
+    - prefer-match-file-name

lint_test/avoid_global_state_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: type_annotate_public_apis
+// ignore_for_file: type_annotate_public_apis, prefer-match-file-name
 
 /// Check global mutable variable fail
 /// `avoid_global_state`

lint_test/avoid_late_keyword_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: prefer_const_declarations, unused_local_variable
+// ignore_for_file: prefer_const_declarations, unused_local_variable, prefer-match-file-name
 // ignore_for_file: avoid_global_state
 
 /// Check "late" keyword fail

lint_test/avoid_non_null_assertion_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: avoid_global_state
+// ignore_for_file: avoid_global_state, prefer-match-file-name
 // ignore_for_file: member-ordering
 
 /// Check "bang" operator fail

lint_test/avoid_returning_widget_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: unused_element
+// ignore_for_file: unused_element, prefer-match-file-name
 // ignore_for_file: member-ordering
 
 /// Check returning a widget fail

lint_test/avoid_unnecessary_setstate_test.dart

@@ -21,7 +21,7 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
-// ignore_for_file: member-ordering
+// ignore_for_file: member-ordering, prefer-match-file-name
 
 import 'package:flutter/material.dart';
 

lint_test/avoid_unrelated_type_assertions_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: prefer_const_declarations
+// ignore_for_file: prefer_const_declarations, prefer-match-file-name
 // ignore_for_file: unnecessary_nullable_for_final_variable_declarations
 // ignore_for_file: unused_local_variable
 

lint_test/avoid_unused_parameters_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: prefer_const_declarations
+// ignore_for_file: prefer_const_declarations, prefer-match-file-name
 // ignore_for_file: unnecessary_nullable_for_final_variable_declarations
 // ignore_for_file: unused_local_variable
 // ignore_for_file: unused_element

lint_test/member_ordering_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: unused_field
+// ignore_for_file: unused_field, prefer-match-file-name
 // ignore_for_file: unused_element
 // ignore_for_file: no-empty-block
 

lint_test/newline_before_return_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: unused_local_variable
+// ignore_for_file: unused_local_variable, prefer-match-file-name
 // ignore_for_file: member-ordering
 // ignore_for_file: avoid-unused-parameters
 

lint_test/no_empty_block_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: prefer_const_declarations
+// ignore_for_file: prefer_const_declarations, prefer-match-file-name
 // ignore_for_file: unused_local_variable
 // ignore_for_file: cyclomatic_complexity
 // ignore_for_file: avoid-unused-parameters

lint_test/no_magic_number_test.dart

@@ -1,4 +1,4 @@
-// ignore_for_file: unused_local_variable
+// ignore_for_file: unused_local_variable, prefer-match-file-name
 
 /// Check the `no-magic-number` rule
 

lint_test/prefer_match_file_name_enum_test.dart

@@ -0,0 +1,5 @@
+// ignore_for_file: unused_element, unused_field
+
+/// Check the `prefer-match-file-name` rule
+// expect_lint: prefer-match-file-name
+enum WrongMixin { a, b }

lint_test/prefer_match_file_name_extension_test.dart

@@ -0,0 +1,5 @@
+// ignore_for_file: unused_element, unused_field
+
+/// Check the `prefer-match-file-name` rule
+// expect_lint: prefer-match-file-name
+extension WrongExtension on List {}

lint_test/prefer_match_file_name_mixin_test.dart

@@ -0,0 +1,5 @@
+// ignore_for_file: unused_element, unused_field
+
+/// Check the `prefer-match-file-name` rule
+// expect_lint: prefer-match-file-name
+mixin WrongMixin {}

lint_test/prefer_match_file_name_test.dart

@@ -0,0 +1,17 @@
+// ignore_for_file: unused_element, unused_field
+
+/// Check the `prefer-match-file-name` rule
+class _AnotherPrivateClass {}
+
+class PreferMatchFileNameTest {}
+
+/// Only first public element declaration is checked
+class WrongClass {}
+
+class _PrivateClass {}
+
+extension _PrivateExtension on PreferMatchFileNameTest {}
+
+enum _PrivateEnum { a, b }
+
+mixin _PrivateMixin {}

lint_test/prefer_match_file_name_wrong_test.dart

@@ -0,0 +1,10 @@
+// ignore_for_file: unused_element, unused_field
+
+/// Check the `prefer-match-file-name` rule
+class _AnotherPrivateClass {}
+
+// expect_lint: prefer-match-file-name
+class WrongClass {}
+
+/// Only first public element declaration is checked
+class PreferMatchFileNameWrongTest {}