[file_selector] add getDirectoryPaths implementation on Linux (#6573)

* Add getDirectoriesPaths method to the file_selector_platform_interface

Add getDirectoriesPaths to method channel.

Increment version to 2.3.0

apply feedback

extract assertion method

* add getDirectoryPaths Linux implementation

* apply rebase

* update version to 0.9.1

Co-authored-by: eugerossetto <eugenio.rossetto@southworks.com>
diff --git a/packages/file_selector/file_selector_linux/CHANGELOG.md b/packages/file_selector/file_selector_linux/CHANGELOG.md
index a1f57b5..70ce307 100644
--- a/packages/file_selector/file_selector_linux/CHANGELOG.md
+++ b/packages/file_selector/file_selector_linux/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.9.1
+
+* Adds `getDirectoryPaths` implementation.
+
 ## 0.9.0+1
 
 * Changes XTypeGroup initialization from final to const.
diff --git a/packages/file_selector/file_selector_linux/example/lib/get_multiple_directories_page.dart b/packages/file_selector/file_selector_linux/example/lib/get_multiple_directories_page.dart
new file mode 100644
index 0000000..66ab29c
--- /dev/null
+++ b/packages/file_selector/file_selector_linux/example/lib/get_multiple_directories_page.dart
@@ -0,0 +1,84 @@
+// Copyright 2013 The Flutter Authors. 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:file_selector_platform_interface/file_selector_platform_interface.dart';
+import 'package:flutter/material.dart';
+
+/// Screen that allows the user to select one or more directories using `getDirectoryPaths`,
+/// then displays the selected directories in a dialog.
+class GetMultipleDirectoriesPage extends StatelessWidget {
+  /// Default Constructor
+  const GetMultipleDirectoriesPage({Key? key}) : super(key: key);
+
+  Future<void> _getDirectoryPaths(BuildContext context) async {
+    const String confirmButtonText = 'Choose';
+    final List<String> directoryPaths =
+        await FileSelectorPlatform.instance.getDirectoryPaths(
+      confirmButtonText: confirmButtonText,
+    );
+    if (directoryPaths.isEmpty) {
+      // Operation was canceled by the user.
+      return;
+    }
+    await showDialog<void>(
+      context: context,
+      builder: (BuildContext context) => TextDisplay(directoryPaths.join('\n')),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Select multiple directories'),
+      ),
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: <Widget>[
+            ElevatedButton(
+              style: ElevatedButton.styleFrom(
+                // TODO(darrenaustin): Migrate to new API once it lands in stable: https://github.com/flutter/flutter/issues/105724
+                // ignore: deprecated_member_use
+                primary: Colors.blue,
+                // ignore: deprecated_member_use
+                onPrimary: Colors.white,
+              ),
+              child: const Text(
+                  'Press to ask user to choose multiple directories'),
+              onPressed: () => _getDirectoryPaths(context),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+/// Widget that displays a text file in a dialog.
+class TextDisplay extends StatelessWidget {
+  /// Creates a `TextDisplay`.
+  const TextDisplay(this.directoriesPaths, {Key? key}) : super(key: key);
+
+  /// The path selected in the dialog.
+  final String directoriesPaths;
+
+  @override
+  Widget build(BuildContext context) {
+    return AlertDialog(
+      title: const Text('Selected Directories'),
+      content: Scrollbar(
+        child: SingleChildScrollView(
+          child: Text(directoriesPaths),
+        ),
+      ),
+      actions: <Widget>[
+        TextButton(
+          child: const Text('Close'),
+          onPressed: () => Navigator.pop(context),
+        ),
+      ],
+    );
+  }
+}
diff --git a/packages/file_selector/file_selector_linux/example/lib/home_page.dart b/packages/file_selector/file_selector_linux/example/lib/home_page.dart
index a4b2ae1..80e1633 100644
--- a/packages/file_selector/file_selector_linux/example/lib/home_page.dart
+++ b/packages/file_selector/file_selector_linux/example/lib/home_page.dart
@@ -55,6 +55,13 @@
               child: const Text('Open a get directory dialog'),
               onPressed: () => Navigator.pushNamed(context, '/directory'),
             ),
+            const SizedBox(height: 10),
+            ElevatedButton(
+              style: style,
+              child: const Text('Open a get directories dialog'),
+              onPressed: () =>
+                  Navigator.pushNamed(context, '/multi-directories'),
+            ),
           ],
         ),
       ),
diff --git a/packages/file_selector/file_selector_linux/example/lib/main.dart b/packages/file_selector/file_selector_linux/example/lib/main.dart
index 3e44710..b8f0476 100644
--- a/packages/file_selector/file_selector_linux/example/lib/main.dart
+++ b/packages/file_selector/file_selector_linux/example/lib/main.dart
@@ -5,6 +5,7 @@
 import 'package:flutter/material.dart';
 
 import 'get_directory_page.dart';
+import 'get_multiple_directories_page.dart';
 import 'home_page.dart';
 import 'open_image_page.dart';
 import 'open_multiple_images_page.dart';
@@ -36,6 +37,8 @@
         '/open/text': (BuildContext context) => const OpenTextPage(),
         '/save/text': (BuildContext context) => SaveTextPage(),
         '/directory': (BuildContext context) => const GetDirectoryPage(),
+        '/multi-directories': (BuildContext context) =>
+            const GetMultipleDirectoriesPage()
       },
     );
   }
diff --git a/packages/file_selector/file_selector_linux/example/pubspec.yaml b/packages/file_selector/file_selector_linux/example/pubspec.yaml
index 51bdb28..912a082 100644
--- a/packages/file_selector/file_selector_linux/example/pubspec.yaml
+++ b/packages/file_selector/file_selector_linux/example/pubspec.yaml
@@ -1,6 +1,6 @@
 name: file_selector_linux_example
 description: Local testbed for Linux file_selector implementation.
-publish_to: 'none' # Remove this line if you wish to publish to pub.dev
+publish_to: 'none'
 version: 1.0.0+1
 
 environment:
@@ -9,7 +9,7 @@
 dependencies:
   file_selector_linux:
     path: ../
-  file_selector_platform_interface: ^2.2.0
+  file_selector_platform_interface: ^2.4.0
   flutter:
     sdk: flutter
 
diff --git a/packages/file_selector/file_selector_linux/lib/file_selector_linux.dart b/packages/file_selector/file_selector_linux/lib/file_selector_linux.dart
index 430b41c..b8e3df6 100644
--- a/packages/file_selector/file_selector_linux/lib/file_selector_linux.dart
+++ b/packages/file_selector/file_selector_linux/lib/file_selector_linux.dart
@@ -102,13 +102,26 @@
     String? initialDirectory,
     String? confirmButtonText,
   }) async {
-    return _channel.invokeMethod<String>(
-      _getDirectoryPathMethod,
-      <String, dynamic>{
-        _initialDirectoryKey: initialDirectory,
-        _confirmButtonTextKey: confirmButtonText,
-      },
-    );
+    final List<String>? path = await _channel
+        .invokeListMethod<String>(_getDirectoryPathMethod, <String, dynamic>{
+      _initialDirectoryKey: initialDirectory,
+      _confirmButtonTextKey: confirmButtonText,
+    });
+    return path?.first;
+  }
+
+  @override
+  Future<List<String>> getDirectoryPaths({
+    String? initialDirectory,
+    String? confirmButtonText,
+  }) async {
+    final List<String>? pathList = await _channel
+        .invokeListMethod<String>(_getDirectoryPathMethod, <String, dynamic>{
+      _initialDirectoryKey: initialDirectory,
+      _confirmButtonTextKey: confirmButtonText,
+      _multipleKey: true,
+    });
+    return pathList ?? <String>[];
   }
 }
 
diff --git a/packages/file_selector/file_selector_linux/linux/.gitignore b/packages/file_selector/file_selector_linux/linux/.gitignore
new file mode 100644
index 0000000..83fee18
--- /dev/null
+++ b/packages/file_selector/file_selector_linux/linux/.gitignore
@@ -0,0 +1,2 @@
+CMakeCache.txt
+CMakeFiles/
\ No newline at end of file
diff --git a/packages/file_selector/file_selector_linux/linux/file_selector_plugin.cc b/packages/file_selector/file_selector_linux/linux/file_selector_plugin.cc
index 8337719..5a8cc21 100644
--- a/packages/file_selector/file_selector_linux/linux/file_selector_plugin.cc
+++ b/packages/file_selector/file_selector_linux/linux/file_selector_plugin.cc
@@ -192,10 +192,10 @@
   FlValue* args = fl_method_call_get_args(method_call);
 
   g_autoptr(FlMethodResponse) response = nullptr;
-  if (strcmp(method, kOpenFileMethod) == 0) {
+  if (strcmp(method, kOpenFileMethod) == 0 ||
+      strcmp(method, kGetDirectoryPathMethod) == 0) {
     response = show_dialog(self, method, args, true);
-  } else if (strcmp(method, kGetDirectoryPathMethod) == 0 ||
-             strcmp(method, kGetSavePathMethod) == 0) {
+  } else if (strcmp(method, kGetSavePathMethod) == 0) {
     response = show_dialog(self, method, args, false);
   } else {
     response = FL_METHOD_RESPONSE(fl_method_not_implemented_response_new());
diff --git a/packages/file_selector/file_selector_linux/linux/test/file_selector_plugin_test.cc b/packages/file_selector/file_selector_linux/linux/test/file_selector_plugin_test.cc
index 84c55ac..8762b4a 100644
--- a/packages/file_selector/file_selector_linux/linux/test/file_selector_plugin_test.cc
+++ b/packages/file_selector/file_selector_linux/linux/test/file_selector_plugin_test.cc
@@ -169,3 +169,17 @@
   EXPECT_EQ(gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(dialog)),
             false);
 }
+
+TEST(FileSelectorPlugin, TestGetMultipleDirectories) {
+  g_autoptr(FlValue) args = fl_value_new_map();
+  fl_value_set_string_take(args, "multiple", fl_value_new_bool(true));
+
+  g_autoptr(GtkFileChooserNative) dialog =
+      create_dialog_for_method(nullptr, "getDirectoryPath", args);
+
+  ASSERT_NE(dialog, nullptr);
+  EXPECT_EQ(gtk_file_chooser_get_action(GTK_FILE_CHOOSER(dialog)),
+            GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER);
+  EXPECT_EQ(gtk_file_chooser_get_select_multiple(GTK_FILE_CHOOSER(dialog)),
+            true);
+}
diff --git a/packages/file_selector/file_selector_linux/pubspec.yaml b/packages/file_selector/file_selector_linux/pubspec.yaml
index a8aea37..5aff949 100644
--- a/packages/file_selector/file_selector_linux/pubspec.yaml
+++ b/packages/file_selector/file_selector_linux/pubspec.yaml
@@ -2,7 +2,7 @@
 description: Liunx implementation of the file_selector plugin.
 repository: https://github.com/flutter/plugins/tree/main/packages/file_selector/file_selector_linux
 issue_tracker: https://github.com/flutter/flutter/issues?q=is%3Aissue+is%3Aopen+label%3A%22p%3A+file_selector%22
-version: 0.9.0+1
+version: 0.9.1
 
 environment:
   sdk: ">=2.12.0 <3.0.0"
@@ -18,7 +18,7 @@
 
 dependencies:
   cross_file: ^0.3.1
-  file_selector_platform_interface: ^2.2.0
+  file_selector_platform_interface: ^2.4.0
   flutter:
     sdk: flutter
 
diff --git a/packages/file_selector/file_selector_linux/test/file_selector_linux_test.dart b/packages/file_selector/file_selector_linux/test/file_selector_linux_test.dart
index 748f922..4eae078 100644
--- a/packages/file_selector/file_selector_linux/test/file_selector_linux_test.dart
+++ b/packages/file_selector/file_selector_linux/test/file_selector_linux_test.dart
@@ -46,57 +46,54 @@
 
       await plugin.openFile(acceptedTypeGroups: <XTypeGroup>[group, groupTwo]);
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'acceptedTypeGroups': <Map<String, dynamic>>[
-              <String, Object>{
-                'label': 'text',
-                'extensions': <String>['*.txt'],
-                'mimeTypes': <String>['text/plain'],
-              },
-              <String, Object>{
-                'label': 'image',
-                'extensions': <String>['*.jpg'],
-                'mimeTypes': <String>['image/jpg'],
-              },
-            ],
-            'initialDirectory': null,
-            'confirmButtonText': null,
-            'multiple': false,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'acceptedTypeGroups': <Map<String, dynamic>>[
+            <String, Object>{
+              'label': 'text',
+              'extensions': <String>['*.txt'],
+              'mimeTypes': <String>['text/plain'],
+            },
+            <String, Object>{
+              'label': 'image',
+              'extensions': <String>['*.jpg'],
+              'mimeTypes': <String>['image/jpg'],
+            },
+          ],
+          'initialDirectory': null,
+          'confirmButtonText': null,
+          'multiple': false,
+        },
       );
     });
 
     test('passes initialDirectory correctly', () async {
       await plugin.openFile(initialDirectory: '/example/directory');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'initialDirectory': '/example/directory',
-            'confirmButtonText': null,
-            'multiple': false,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'initialDirectory': '/example/directory',
+          'confirmButtonText': null,
+          'multiple': false,
+        },
       );
     });
 
     test('passes confirmButtonText correctly', () async {
       await plugin.openFile(confirmButtonText: 'Open File');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'initialDirectory': null,
-            'confirmButtonText': 'Open File',
-            'multiple': false,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'initialDirectory': null,
+          'confirmButtonText': 'Open File',
+          'multiple': false,
+        },
       );
     });
 
@@ -118,21 +115,20 @@
 
       await plugin.openFile(acceptedTypeGroups: <XTypeGroup>[group]);
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'acceptedTypeGroups': <Map<String, dynamic>>[
-              <String, Object>{
-                'label': 'any',
-                'extensions': <String>['*'],
-              },
-            ],
-            'initialDirectory': null,
-            'confirmButtonText': null,
-            'multiple': false,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'acceptedTypeGroups': <Map<String, dynamic>>[
+            <String, Object>{
+              'label': 'any',
+              'extensions': <String>['*'],
+            },
+          ],
+          'initialDirectory': null,
+          'confirmButtonText': null,
+          'multiple': false,
+        },
       );
     });
   });
@@ -156,57 +152,54 @@
 
       await plugin.openFiles(acceptedTypeGroups: <XTypeGroup>[group, groupTwo]);
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'acceptedTypeGroups': <Map<String, dynamic>>[
-              <String, Object>{
-                'label': 'text',
-                'extensions': <String>['*.txt'],
-                'mimeTypes': <String>['text/plain'],
-              },
-              <String, Object>{
-                'label': 'image',
-                'extensions': <String>['*.jpg'],
-                'mimeTypes': <String>['image/jpg'],
-              },
-            ],
-            'initialDirectory': null,
-            'confirmButtonText': null,
-            'multiple': true,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'acceptedTypeGroups': <Map<String, dynamic>>[
+            <String, Object>{
+              'label': 'text',
+              'extensions': <String>['*.txt'],
+              'mimeTypes': <String>['text/plain'],
+            },
+            <String, Object>{
+              'label': 'image',
+              'extensions': <String>['*.jpg'],
+              'mimeTypes': <String>['image/jpg'],
+            },
+          ],
+          'initialDirectory': null,
+          'confirmButtonText': null,
+          'multiple': true,
+        },
       );
     });
 
     test('passes initialDirectory correctly', () async {
       await plugin.openFiles(initialDirectory: '/example/directory');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'initialDirectory': '/example/directory',
-            'confirmButtonText': null,
-            'multiple': true,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'initialDirectory': '/example/directory',
+          'confirmButtonText': null,
+          'multiple': true,
+        },
       );
     });
 
     test('passes confirmButtonText correctly', () async {
       await plugin.openFiles(confirmButtonText: 'Open File');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'initialDirectory': null,
-            'confirmButtonText': 'Open File',
-            'multiple': true,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'initialDirectory': null,
+          'confirmButtonText': 'Open File',
+          'multiple': true,
+        },
       );
     });
 
@@ -228,21 +221,20 @@
 
       await plugin.openFile(acceptedTypeGroups: <XTypeGroup>[group]);
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'acceptedTypeGroups': <Map<String, dynamic>>[
-              <String, Object>{
-                'label': 'any',
-                'extensions': <String>['*'],
-              },
-            ],
-            'initialDirectory': null,
-            'confirmButtonText': null,
-            'multiple': false,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'acceptedTypeGroups': <Map<String, dynamic>>[
+            <String, Object>{
+              'label': 'any',
+              'extensions': <String>['*'],
+            },
+          ],
+          'initialDirectory': null,
+          'confirmButtonText': null,
+          'multiple': false,
+        },
       );
     });
   });
@@ -267,57 +259,54 @@
       await plugin
           .getSavePath(acceptedTypeGroups: <XTypeGroup>[group, groupTwo]);
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('getSavePath', arguments: <String, dynamic>{
-            'acceptedTypeGroups': <Map<String, dynamic>>[
-              <String, Object>{
-                'label': 'text',
-                'extensions': <String>['*.txt'],
-                'mimeTypes': <String>['text/plain'],
-              },
-              <String, Object>{
-                'label': 'image',
-                'extensions': <String>['*.jpg'],
-                'mimeTypes': <String>['image/jpg'],
-              },
-            ],
-            'initialDirectory': null,
-            'suggestedName': null,
-            'confirmButtonText': null,
-          }),
-        ],
+        'getSavePath',
+        arguments: <String, dynamic>{
+          'acceptedTypeGroups': <Map<String, dynamic>>[
+            <String, Object>{
+              'label': 'text',
+              'extensions': <String>['*.txt'],
+              'mimeTypes': <String>['text/plain'],
+            },
+            <String, Object>{
+              'label': 'image',
+              'extensions': <String>['*.jpg'],
+              'mimeTypes': <String>['image/jpg'],
+            },
+          ],
+          'initialDirectory': null,
+          'suggestedName': null,
+          'confirmButtonText': null,
+        },
       );
     });
 
     test('passes initialDirectory correctly', () async {
       await plugin.getSavePath(initialDirectory: '/example/directory');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('getSavePath', arguments: <String, dynamic>{
-            'initialDirectory': '/example/directory',
-            'suggestedName': null,
-            'confirmButtonText': null,
-          }),
-        ],
+        'getSavePath',
+        arguments: <String, dynamic>{
+          'initialDirectory': '/example/directory',
+          'suggestedName': null,
+          'confirmButtonText': null,
+        },
       );
     });
 
     test('passes confirmButtonText correctly', () async {
       await plugin.getSavePath(confirmButtonText: 'Open File');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('getSavePath', arguments: <String, dynamic>{
-            'initialDirectory': null,
-            'suggestedName': null,
-            'confirmButtonText': 'Open File',
-          }),
-        ],
+        'getSavePath',
+        arguments: <String, dynamic>{
+          'initialDirectory': null,
+          'suggestedName': null,
+          'confirmButtonText': 'Open File',
+        },
       );
     });
 
@@ -339,21 +328,20 @@
 
       await plugin.openFile(acceptedTypeGroups: <XTypeGroup>[group]);
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('openFile', arguments: <String, dynamic>{
-            'acceptedTypeGroups': <Map<String, dynamic>>[
-              <String, Object>{
-                'label': 'any',
-                'extensions': <String>['*'],
-              },
-            ],
-            'initialDirectory': null,
-            'confirmButtonText': null,
-            'multiple': false,
-          }),
-        ],
+        'openFile',
+        arguments: <String, dynamic>{
+          'acceptedTypeGroups': <Map<String, dynamic>>[
+            <String, Object>{
+              'label': 'any',
+              'extensions': <String>['*'],
+            },
+          ],
+          'initialDirectory': null,
+          'confirmButtonText': null,
+          'multiple': false,
+        },
       );
     });
   });
@@ -362,28 +350,77 @@
     test('passes initialDirectory correctly', () async {
       await plugin.getDirectoryPath(initialDirectory: '/example/directory');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('getDirectoryPath', arguments: <String, dynamic>{
-            'initialDirectory': '/example/directory',
-            'confirmButtonText': null,
-          }),
-        ],
+        'getDirectoryPath',
+        arguments: <String, dynamic>{
+          'initialDirectory': '/example/directory',
+          'confirmButtonText': null,
+        },
       );
     });
     test('passes confirmButtonText correctly', () async {
-      await plugin.getDirectoryPath(confirmButtonText: 'Open File');
+      await plugin.getDirectoryPath(confirmButtonText: 'Select Folder');
 
-      expect(
+      expectMethodCall(
         log,
-        <Matcher>[
-          isMethodCall('getDirectoryPath', arguments: <String, dynamic>{
-            'initialDirectory': null,
-            'confirmButtonText': 'Open File',
-          }),
-        ],
+        'getDirectoryPath',
+        arguments: <String, dynamic>{
+          'initialDirectory': null,
+          'confirmButtonText': 'Select Folder',
+        },
       );
     });
   });
+
+  group('#getDirectoryPaths', () {
+    test('passes initialDirectory correctly', () async {
+      await plugin.getDirectoryPaths(initialDirectory: '/example/directory');
+
+      expectMethodCall(
+        log,
+        'getDirectoryPath',
+        arguments: <String, dynamic>{
+          'initialDirectory': '/example/directory',
+          'confirmButtonText': null,
+          'multiple': true,
+        },
+      );
+    });
+    test('passes confirmButtonText correctly', () async {
+      await plugin.getDirectoryPaths(
+          confirmButtonText: 'Select one or mode folders');
+
+      expectMethodCall(
+        log,
+        'getDirectoryPath',
+        arguments: <String, dynamic>{
+          'initialDirectory': null,
+          'confirmButtonText': 'Select one or mode folders',
+          'multiple': true,
+        },
+      );
+    });
+    test('passes multiple flag correctly', () async {
+      await plugin.getDirectoryPaths();
+
+      expectMethodCall(
+        log,
+        'getDirectoryPath',
+        arguments: <String, dynamic>{
+          'initialDirectory': null,
+          'confirmButtonText': null,
+          'multiple': true,
+        },
+      );
+    });
+  });
+}
+
+void expectMethodCall(
+  List<MethodCall> log,
+  String methodName, {
+  Map<String, dynamic>? arguments,
+}) {
+  expect(log, <Matcher>[isMethodCall(methodName, arguments: arguments)]);
 }