diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/dialog_mode.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/dialog_mode.dart
new file mode 100644
index 000000000000..ee52efef0a5e
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/dialog_mode.dart
@@ -0,0 +1,12 @@
+// 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.
+
+/// The kind of file dialog to show.
+enum DialogMode {
+  /// Used for chosing files.
+  Open,
+
+  /// Used for chosing a directory to save a file.
+  Save
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/dialog_wrapper.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/dialog_wrapper.dart
new file mode 100644
index 000000000000..0f018d49cba1
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/dialog_wrapper.dart
@@ -0,0 +1,197 @@
+// 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 'dart:core';
+import 'dart:ffi';
+
+import 'package:ffi/ffi.dart';
+import 'package:file_selector_platform_interface/file_selector_platform_interface.dart';
+import 'package:flutter/cupertino.dart';
+import 'package:win32/win32.dart';
+
+import 'dialog_mode.dart';
+import 'file_dialog_controller.dart';
+import 'ifile_dialog_controller_factory.dart';
+import 'ifile_dialog_factory.dart';
+import 'shell_win32_api.dart';
+
+/// Wraps an IFileDialog, managing object lifetime as a scoped object and
+/// providing a simplified API for interacting with it as needed for the plugin.
+class DialogWrapper {
+  /// Creates a DialogWrapper using a [IFileDialogControllerFactory] and a [DialogMode].
+  /// It is also responsible of creating a [IFileDialog].
+  DialogWrapper(IFileDialogControllerFactory fileDialogControllerFactory,
+      IFileDialogFactory fileDialogFactory, this._dialogMode)
+      : _isOpenDialog = _dialogMode == DialogMode.Open {
+    try {
+      final IFileDialog dialog = fileDialogFactory.createInstace(_dialogMode);
+      _dialogController = fileDialogControllerFactory.createController(dialog);
+      _shellWin32Api = ShellWin32Api();
+    } catch (ex) {
+      if (ex is WindowsException) {
+        _lastResult = ex.hr;
+      }
+    }
+  }
+
+  /// Creates a DialogWrapper for testing purposes.
+  @visibleForTesting
+  DialogWrapper.withFakeDependencies(FileDialogController dialogController,
+      this._dialogMode, this._shellWin32Api)
+      : _isOpenDialog = _dialogMode == DialogMode.Open,
+        _dialogController = dialogController;
+
+  int _lastResult = S_OK;
+
+  final DialogMode _dialogMode;
+
+  final bool _isOpenDialog;
+
+  final String _allowAnyValue = 'Any';
+
+  final String _allowAnyExtension = '*.*';
+
+  late FileDialogController _dialogController;
+
+  late ShellWin32Api _shellWin32Api;
+
+  /// Returns the result of the last Win32 API call related to this object.
+  int get lastResult => _lastResult;
+
+  /// Attempts to set the default folder for the dialog to [path], if it exists.
+  void setFolder(String path) {
+    if (path == null || path.isEmpty) {
+      return;
+    }
+
+    using((Arena arena) {
+      final Pointer<GUID> ptrGuid = GUIDFromString(IID_IShellItem);
+      final Pointer<Pointer<COMObject>> ptrPath = arena<Pointer<COMObject>>();
+      _lastResult =
+          _shellWin32Api.createItemFromParsingName(path, ptrGuid, ptrPath);
+
+      if (!SUCCEEDED(_lastResult)) {
+        return;
+      }
+
+      _dialogController.setFolder(ptrPath.value);
+    });
+  }
+
+  /// Sets the file name that is initially shown in the dialog.
+  void setFileName(String name) {
+    _dialogController.setFileName(name);
+  }
+
+  /// Sets the label of the confirmation button.
+  void setOkButtonLabel(String label) {
+    _dialogController.setOkButtonLabel(label);
+  }
+
+  /// Adds the given options to the dialog's current [options](https://pub.dev/documentation/win32/latest/winrt/FILEOPENDIALOGOPTIONS-class.html).
+  /// Both are bitfields.
+  void addOptions(int newOptions) {
+    using((Arena arena) {
+      final Pointer<Uint32> currentOptions = arena<Uint32>();
+      _lastResult = _dialogController.getOptions(currentOptions);
+      if (!SUCCEEDED(_lastResult)) {
+        return;
+      }
+      currentOptions.value |= newOptions;
+      _lastResult = _dialogController.setOptions(currentOptions.value);
+    });
+  }
+
+  /// Sets the filters for allowed file types to select.
+  /// filters -> std::optional<EncodableList>
+  void setFileTypeFilters(List<XTypeGroup> filters) {
+    final Map<String, String> filterSpecification = <String, String>{};
+
+    if (filters.isEmpty) {
+      filterSpecification[_allowAnyValue] = _allowAnyExtension;
+    } else {
+      for (final XTypeGroup option in filters) {
+        final String? label = option.label;
+        if (option.allowsAny || option.extensions!.isEmpty) {
+          filterSpecification[label ?? _allowAnyValue] = _allowAnyExtension;
+        } else {
+          final String extensionsForLabel = option.extensions!
+              .map((String extension) => '*.$extension')
+              .join(';');
+          filterSpecification[label ?? extensionsForLabel] = extensionsForLabel;
+        }
+      }
+    }
+
+    using((Arena arena) {
+      final Pointer<COMDLG_FILTERSPEC> registerFilterSpecification =
+          arena<COMDLG_FILTERSPEC>(filterSpecification.length);
+
+      int index = 0;
+      for (final String key in filterSpecification.keys) {
+        registerFilterSpecification[index]
+          ..pszName = TEXT(key)
+          ..pszSpec = TEXT(filterSpecification[key]!);
+        index++;
+      }
+
+      _lastResult = _dialogController.setFileTypes(
+          filterSpecification.length, registerFilterSpecification);
+    });
+  }
+
+  /// Displays the dialog, and returns the selected files, or null on error.
+  List<String?>? show(int parentWindow) {
+    _lastResult = _dialogController.show(parentWindow);
+    if (!SUCCEEDED(_lastResult)) {
+      return null;
+    }
+    late List<String>? files;
+
+    using((Arena arena) {
+      final Pointer<Pointer<COMObject>> shellItemArrayPtr =
+          arena<Pointer<COMObject>>();
+      final Pointer<Uint32> shellItemCountPtr = arena<Uint32>();
+      final Pointer<Pointer<COMObject>> shellItemPtr =
+          arena<Pointer<COMObject>>();
+
+      files =
+          _getFilePathList(shellItemArrayPtr, shellItemCountPtr, shellItemPtr);
+    });
+    return files;
+  }
+
+  List<String>? _getFilePathList(
+      Pointer<Pointer<COMObject>> shellItemArrayPtr,
+      Pointer<Uint32> shellItemCountPtr,
+      Pointer<Pointer<COMObject>> shellItemPtr) {
+    final List<String> files = <String>[];
+    if (_isOpenDialog) {
+      _lastResult = _dialogController.getResults(shellItemArrayPtr);
+      if (!SUCCEEDED(_lastResult)) {
+        return null;
+      }
+
+      final IShellItemArray shellItemResources =
+          IShellItemArray(shellItemArrayPtr.cast());
+      _lastResult = shellItemResources.getCount(shellItemCountPtr);
+      if (!SUCCEEDED(_lastResult)) {
+        return null;
+      }
+      for (int index = 0; index < shellItemCountPtr.value; index++) {
+        shellItemResources.getItemAt(index, shellItemPtr);
+        final IShellItem shellItem = IShellItem(shellItemPtr.cast());
+        files.add(_shellWin32Api.getPathForShellItem(shellItem));
+      }
+    } else {
+      _lastResult = _dialogController.getResult(shellItemPtr);
+      if (!SUCCEEDED(_lastResult)) {
+        return null;
+      }
+      final IShellItem shellItem = IShellItem(shellItemPtr.cast());
+      files.add(_shellWin32Api.getPathForShellItem(shellItem));
+    }
+    return files;
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/file_dialog_controller.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/file_dialog_controller.dart
new file mode 100644
index 000000000000..65164eb9e40e
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/file_dialog_controller.dart
@@ -0,0 +1,91 @@
+// 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 'dart:ffi';
+
+import 'package:win32/win32.dart';
+
+import 'ifile_open_dialog_factory.dart';
+
+/// A thin wrapper for IFileDialog to allow for faking and inspection in tests.
+///
+/// Since this class defines the end of what can be unit tested, it should
+/// contain as little logic as possible.
+class FileDialogController {
+  /// Creates a controller managing [IFileDialog](https://pub.dev/documentation/win32/latest/winrt/IFileDialog-class.html).
+  /// It also receives an IFileOpenDialogFactory to construct [IFileOpenDialog]
+  /// instances.
+  FileDialogController(
+      IFileDialog fileDialog, IFileOpenDialogFactory iFileOpenDialogFactory)
+      : _fileDialog = fileDialog,
+        _iFileOpenDialogFactory = iFileOpenDialogFactory;
+
+  /// The [IFileDialog] to work with.
+  final IFileDialog _fileDialog;
+
+  /// The [IFileOpenDialogFactory] to work construc [IFileOpenDialog] instances.
+  final IFileOpenDialogFactory _iFileOpenDialogFactory;
+
+  /// Sets the default folder for the dialog to [path]. It also returns the operation result.
+  int setFolder(Pointer<COMObject> path) {
+    return _fileDialog.setFolder(path);
+  }
+
+  /// Sets the file [name] that is initially shown in the IFileDialog. It also returns the operation result.
+  int setFileName(String name) {
+    return _fileDialog.setFileName(TEXT(name));
+  }
+
+  /// Sets the allowed file type extensions in the IFileOpenDialog. It also returns the operation result.
+  int setFileTypes(int count, Pointer<COMDLG_FILTERSPEC> filters) {
+    return _fileDialog.setFileTypes(count, filters);
+  }
+
+  /// Sets the label of the confirmation button. It also returns the operation result. It also returns the operation result.
+  int setOkButtonLabel(String text) {
+    return _fileDialog.setOkButtonLabel(TEXT(text));
+  }
+
+  /// Gets the IFileDialog's [options](https://pub.dev/documentation/win32/latest/winrt/FILEOPENDIALOGOPTIONS-class.html),
+  /// which is a bitfield. It also returns the operation result.
+  int getOptions(Pointer<Uint32> outOptions) {
+    return _fileDialog.getOptions(outOptions);
+  }
+
+  /// Sets the [options](https://pub.dev/documentation/win32/latest/winrt/FILEOPENDIALOGOPTIONS-class.html),
+  /// which is a bitfield, into the IFileDialog. It also returns the operation result.
+  int setOptions(int options) {
+    return _fileDialog.setOptions(options);
+  }
+
+  /// Shows an IFileDialog using the given parent. It returns the operation result.
+  int show(int parent) {
+    return _fileDialog.show(parent);
+  }
+
+  /// Return results from an IFileDialog. This should be used when selecting
+  /// single items. It also returns the operation result.
+  int getResult(Pointer<Pointer<COMObject>> outItem) {
+    return _fileDialog.getResult(outItem);
+  }
+
+  /// Return results from an IFileOpenDialog. This should be used when selecting
+  /// single items. This function will fail if the IFileDialog* provided to the
+  /// constructor was not an IFileOpenDialog instance, returning an E_FAIL
+  /// error.
+  int getResults(Pointer<Pointer<COMObject>> outItems) {
+    IFileOpenDialog? fileOpenDialog;
+    try {
+      fileOpenDialog = _iFileOpenDialogFactory.from(_fileDialog);
+      return fileOpenDialog.getResults(outItems);
+    } catch (_) {
+      return E_FAIL;
+    } finally {
+      fileOpenDialog?.release();
+      if (fileOpenDialog != null) {
+        free(fileOpenDialog.ptr);
+      }
+    }
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/file_dialog_controller_factory.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/file_dialog_controller_factory.dart
new file mode 100644
index 000000000000..296c9ba4529f
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/file_dialog_controller_factory.dart
@@ -0,0 +1,18 @@
+// 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:win32/win32.dart';
+
+import 'file_dialog_controller.dart';
+import 'ifile_dialog_controller_factory.dart';
+import 'ifile_open_dialog_factory.dart';
+
+/// Implementation of FileDialogControllerFactory that makes standard
+/// FileDialogController instances.
+class FileDialogControllerFactory implements IFileDialogControllerFactory {
+  @override
+  FileDialogController createController(IFileDialog dialog) {
+    return FileDialogController(dialog, IFileOpenDialogFactory());
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_dialog_controller_factory.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_dialog_controller_factory.dart
new file mode 100644
index 000000000000..63f081b82944
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_dialog_controller_factory.dart
@@ -0,0 +1,14 @@
+// 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:win32/win32.dart';
+
+import 'file_dialog_controller.dart';
+
+/// Interface for creating FileDialogControllers, to allow for dependency
+/// injection.
+abstract class IFileDialogControllerFactory {
+  /// Returns a FileDialogController to interact with the given [IFileDialog].
+  FileDialogController createController(IFileDialog dialog);
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_dialog_factory.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_dialog_factory.dart
new file mode 100644
index 000000000000..4a13d8731a33
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_dialog_factory.dart
@@ -0,0 +1,19 @@
+// 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:win32/win32.dart';
+
+import 'dialog_mode.dart';
+
+/// A factory for [IFileDialog] instances.
+class IFileDialogFactory {
+  /// Creates the corresponding IFileDialog instace. The caller is responsible of releasing the resource.
+  IFileDialog createInstace(DialogMode dialogMode) {
+    if (dialogMode == DialogMode.Open) {
+      return FileOpenDialog.createInstance();
+    }
+
+    return FileSaveDialog.createInstance();
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_open_dialog_factory.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_open_dialog_factory.dart
new file mode 100644
index 000000000000..fca0095db413
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/ifile_open_dialog_factory.dart
@@ -0,0 +1,13 @@
+// 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:win32/win32.dart';
+
+/// A wrapper of the IFileOpenDialog interface to use its from function.
+class IFileOpenDialogFactory {
+  /// Wraps the IFileOpenDialog from function.
+  IFileOpenDialog from(IFileDialog fileDialog) {
+    return IFileOpenDialog.from(fileDialog);
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/shell_win32_api.dart b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/shell_win32_api.dart
new file mode 100644
index 000000000000..4390e6580aa0
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/lib/src/file_selector_dart/shell_win32_api.dart
@@ -0,0 +1,36 @@
+// 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 'dart:ffi';
+
+import 'package:ffi/ffi.dart';
+import 'package:win32/win32.dart';
+
+/// A thin wrapper for Win32 platform specific Shell methods.
+///
+/// The only purpose of this class is to decouple specific Win32 Api call from the bussiness logic so it can be init tested in any environment.
+class ShellWin32Api {
+  /// Creates and [initializes](https://learn.microsoft.com/en-us/windows/win32/api/shobjidl_core/nf-shobjidl_core-shcreateitemfromparsingname) a Shell item object from a parsing name.
+  /// If the directory doesn't exist it will return an error result.
+  int createItemFromParsingName(String initialDirectory, Pointer<GUID> ptrGuid,
+      Pointer<Pointer<NativeType>> ptrPath) {
+    return SHCreateItemFromParsingName(
+        TEXT(initialDirectory), nullptr, ptrGuid, ptrPath);
+  }
+
+  /// Returns the path for [shellItem] as a UTF-8 string, or an empty string on
+  /// failure.
+  String getPathForShellItem(IShellItem shellItem) {
+    return using((Arena arena) {
+      final Pointer<Pointer<Utf16>> ptrPath = arena<Pointer<Utf16>>();
+
+      if (!SUCCEEDED(
+          shellItem.getDisplayName(SIGDN.SIGDN_FILESYSPATH, ptrPath.cast()))) {
+        return '';
+      }
+
+      return ptrPath.value.toDartString();
+    });
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/pubspec.yaml b/packages/file_selector/file_selector_windows/pubspec.yaml
index ee0701b3fd30..ef6d25d8f8de 100644
--- a/packages/file_selector/file_selector_windows/pubspec.yaml
+++ b/packages/file_selector/file_selector_windows/pubspec.yaml
@@ -18,9 +18,11 @@ flutter:
 
 dependencies:
   cross_file: ^0.3.1
+  ffi: ^2.0.1
   file_selector_platform_interface: ^2.2.0
   flutter:
     sdk: flutter
+  win32: ^3.0.0
 
 dev_dependencies:
   build_runner: 2.1.11
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/dialog_wrapper_test.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/dialog_wrapper_test.dart
new file mode 100644
index 000000000000..056075cbee02
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/dialog_wrapper_test.dart
@@ -0,0 +1,306 @@
+// 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 'dart:ffi';
+
+import 'package:ffi/ffi.dart';
+import 'package:file_selector_platform_interface/file_selector_platform_interface.dart';
+import 'package:file_selector_windows/src/file_selector_dart/dialog_mode.dart';
+import 'package:file_selector_windows/src/file_selector_dart/dialog_wrapper.dart';
+import 'package:file_selector_windows/src/file_selector_dart/file_dialog_controller.dart';
+import 'package:file_selector_windows/src/file_selector_dart/shell_win32_api.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:mockito/annotations.dart';
+import 'package:mockito/mockito.dart';
+import 'package:win32/win32.dart';
+
+import 'dialog_wrapper_test.mocks.dart';
+
+@GenerateMocks(<Type>[FileDialogController, ShellWin32Api])
+void main() {
+  const int defaultReturnValue = S_OK;
+  late final MockFileDialogController mockFileDialogController =
+      MockFileDialogController();
+  late final MockShellWin32Api mockShellWin32Api = MockShellWin32Api();
+  const DialogMode dialogMode = DialogMode.Open;
+  final DialogWrapper dialogWrapper = DialogWrapper.withFakeDependencies(
+      mockFileDialogController, dialogMode, mockShellWin32Api);
+
+  setUp(() {
+    setDefaultMocks(mockFileDialogController, defaultReturnValue);
+  });
+
+  tearDown(() {
+    reset(mockFileDialogController);
+    reset(mockShellWin32Api);
+  });
+
+  test('setFileName should call dialog setFileName', () {
+    const String folderName = 'Documents';
+    dialogWrapper.setFileName(folderName);
+    verify(mockFileDialogController.setFileName(folderName)).called(1);
+  });
+
+  test('setOkButtonLabel should call dialog setOkButtonLabel', () {
+    const String okButtonLabel = 'Confirm';
+    dialogWrapper.setOkButtonLabel(okButtonLabel);
+    verify(mockFileDialogController.setOkButtonLabel(okButtonLabel)).called(1);
+  });
+
+  test('addOptions should call dialog getOptions and setOptions', () {
+    const int newOptions = FILEOPENDIALOGOPTIONS.FOS_NOREADONLYRETURN;
+    dialogWrapper.addOptions(newOptions);
+    verify(mockFileDialogController.getOptions(any)).called(1);
+    verify(mockFileDialogController.setOptions(newOptions)).called(1);
+  });
+
+  test('addOptions should not call setOptions if getOptions returns an error',
+      () {
+    const int options = FILEOPENDIALOGOPTIONS.FOS_NOREADONLYRETURN;
+    when(mockFileDialogController.getOptions(any)).thenReturn(E_FAIL);
+    dialogWrapper.addOptions(options);
+    verifyNever(mockFileDialogController.setOptions(any));
+  });
+
+  test(
+      'setFileTypeFilters should call setFileTypes with expected typeGroups count',
+      () {
+    final List<XTypeGroup> typeGroups = <XTypeGroup>[
+      const XTypeGroup(extensions: <String>['jpg', 'png'], label: 'Images'),
+      const XTypeGroup(extensions: <String>['txt', 'json'], label: 'Text'),
+    ];
+    dialogWrapper.setFileTypeFilters(typeGroups);
+    verify(mockFileDialogController.setFileTypes(typeGroups.length, any))
+        .called(1);
+  });
+
+  test('setFileTypeFilters should call setFileTypes with Any by default', () {
+    const String expectedPszName = 'Any';
+    const String expectedPszSpec = '*.*';
+    final List<XTypeGroup> typeGroups = <XTypeGroup>[];
+    mockSetFileTypesConditions(
+        mockFileDialogController, expectedPszName, expectedPszSpec);
+    dialogWrapper.setFileTypeFilters(typeGroups);
+    verify(mockFileDialogController.setFileTypes(1, any)).called(1);
+    expect(dialogWrapper.lastResult, S_OK);
+  });
+
+  test(
+      'setFileTypeFilters should call setFileTypes with a label and default extensions',
+      () {
+    const String label = 'All files';
+    const String expectedPszSpec = '*.*';
+    final List<XTypeGroup> typeGroups = <XTypeGroup>[
+      const XTypeGroup(label: label),
+    ];
+    mockSetFileTypesConditions(
+        mockFileDialogController, label, expectedPszSpec);
+    dialogWrapper.setFileTypeFilters(typeGroups);
+    verify(mockFileDialogController.setFileTypes(1, any)).called(1);
+    expect(dialogWrapper.lastResult, S_OK);
+  });
+
+  test(
+      'setFileTypeFilters should call setFileTypes with both default label and extensions',
+      () {
+    const String defaultLabel = 'Any';
+    const String expectedPszSpec = '*.*';
+    final List<XTypeGroup> typeGroups = <XTypeGroup>[
+      const XTypeGroup(),
+    ];
+    mockSetFileTypesConditions(
+        mockFileDialogController, defaultLabel, expectedPszSpec);
+    dialogWrapper.setFileTypeFilters(typeGroups);
+    verify(mockFileDialogController.setFileTypes(1, any)).called(1);
+    expect(dialogWrapper.lastResult, S_OK);
+  });
+
+  test(
+      'setFileTypeFilters should call setFileTypes with specific labels and extensions',
+      () {
+    const String jpg = 'jpg';
+    const String png = 'png';
+    const String imageLabel = 'Image';
+    const String txt = 'txt';
+    const String json = 'json';
+    const String textLabel = 'Text';
+    final Map<String, String> expectedfilterSpecification = <String, String>{
+      imageLabel: '*.$jpg;*.$png',
+      textLabel: '*.$txt;*.$json',
+    };
+    final List<XTypeGroup> typeGroups = <XTypeGroup>[
+      const XTypeGroup(extensions: <String>[jpg, png], label: imageLabel),
+      const XTypeGroup(extensions: <String>[txt, json], label: textLabel),
+    ];
+    when(mockFileDialogController.setFileTypes(any, any))
+        .thenAnswer((Invocation realInvocation) {
+      final Pointer<COMDLG_FILTERSPEC> pointer =
+          realInvocation.positionalArguments[1] as Pointer<COMDLG_FILTERSPEC>;
+
+      int index = 0;
+      for (final String key in expectedfilterSpecification.keys) {
+        if (pointer[index].pszName.toDartString() != key ||
+            pointer[index].pszSpec.toDartString() !=
+                expectedfilterSpecification[key]) {
+          return E_FAIL;
+        }
+        index++;
+      }
+      return S_OK;
+    });
+
+    dialogWrapper.setFileTypeFilters(typeGroups);
+    verify(mockFileDialogController.setFileTypes(typeGroups.length, any))
+        .called(1);
+    expect(dialogWrapper.lastResult, S_OK);
+  });
+
+  test(
+      'setFileTypeFilters should call setFileTypes with specific extensions and No label',
+      () {
+    const String jpg = 'jpg';
+    const String png = 'png';
+    const String txt = 'txt';
+    const String json = 'json';
+    final Map<String, String> expectedfilterSpecification = <String, String>{
+      '*.$jpg;*.$png': '*.$jpg;*.$png',
+      '*.$txt;*.$json': '*.$txt;*.$json',
+    };
+    final List<XTypeGroup> typeGroups = <XTypeGroup>[
+      const XTypeGroup(extensions: <String>[jpg, png]),
+      const XTypeGroup(extensions: <String>[txt, json]),
+    ];
+    when(mockFileDialogController.setFileTypes(any, any))
+        .thenAnswer((Invocation realInvocation) {
+      final Pointer<COMDLG_FILTERSPEC> pointer =
+          realInvocation.positionalArguments[1] as Pointer<COMDLG_FILTERSPEC>;
+
+      int index = 0;
+      for (final String key in expectedfilterSpecification.keys) {
+        if (pointer[index].pszName.toDartString() != key ||
+            pointer[index].pszSpec.toDartString() !=
+                expectedfilterSpecification[key]) {
+          return E_FAIL;
+        }
+        index++;
+      }
+      return S_OK;
+    });
+
+    dialogWrapper.setFileTypeFilters(typeGroups);
+    verify(mockFileDialogController.setFileTypes(typeGroups.length, any))
+        .called(1);
+    expect(dialogWrapper.lastResult, S_OK);
+  });
+
+  test('setFolder should not call dialog setFolder if the path is empty', () {
+    const String emptyPath = '';
+    dialogWrapper.setFolder(emptyPath);
+    verifyNever(mockFileDialogController.setFolder(any));
+  });
+
+  test('setFolder should call dialog setFolder with the provided path', () {
+    const String path = 'path/to/my/folder';
+    when(mockShellWin32Api.createItemFromParsingName(path, any, any))
+        .thenReturn(S_OK);
+    dialogWrapper.setFolder(path);
+    verify(mockFileDialogController.setFolder(any)).called(1);
+  });
+
+  test('setFolder should not call dialog setFolder if createItem fails', () {
+    const String path = 'path/to/my/folder';
+    when(mockShellWin32Api.createItemFromParsingName(path, any, any))
+        .thenReturn(E_FAIL);
+    dialogWrapper.setFolder(path);
+    verifyNever(mockFileDialogController.setFolder(any));
+  });
+
+  test(
+      '[DialogMode == Open] show should return null if parent window is not available',
+      () {
+    const int parentWindow = 0;
+    when(mockFileDialogController.show(parentWindow)).thenReturn(E_FAIL);
+
+    final List<String?>? result = dialogWrapper.show(parentWindow);
+
+    expect(result, null);
+    verify(mockFileDialogController.show(parentWindow)).called(1);
+    verifyNever(mockFileDialogController.getResults(any));
+  });
+
+  test(
+      "[DialogMode == Open] show should return null if can't get results from dialog",
+      () {
+    const int parentWindow = 0;
+    when(mockFileDialogController.show(parentWindow)).thenReturn(S_OK);
+    when(mockFileDialogController.getResults(any)).thenReturn(E_FAIL);
+
+    final List<String?>? result = dialogWrapper.show(parentWindow);
+
+    expect(result, null);
+    verify(mockFileDialogController.show(parentWindow)).called(1);
+    verify(mockFileDialogController.getResults(any)).called(1);
+  });
+
+  test(
+      "[DialogMode == Save] show should return null if can't get result from dialog",
+      () {
+    final DialogWrapper dialogWrapperModeSave =
+        DialogWrapper.withFakeDependencies(
+            mockFileDialogController, DialogMode.Save, mockShellWin32Api);
+    const int parentWindow = 0;
+    when(mockFileDialogController.show(parentWindow)).thenReturn(S_OK);
+    when(mockFileDialogController.getResult(any)).thenReturn(E_FAIL);
+
+    final List<String?>? result = dialogWrapperModeSave.show(parentWindow);
+
+    expect(result, null);
+    verify(mockFileDialogController.show(parentWindow)).called(1);
+    verify(mockFileDialogController.getResult(any)).called(1);
+  });
+
+  test('[DialogMode == Save] show should the selected directory for', () {
+    const String filePath = 'path/to/file.txt';
+    final DialogWrapper dialogWrapperModeSave =
+        DialogWrapper.withFakeDependencies(
+            mockFileDialogController, DialogMode.Save, mockShellWin32Api);
+    const int parentWindow = 0;
+    when(mockFileDialogController.show(parentWindow)).thenReturn(S_OK);
+    when(mockFileDialogController.getResult(any)).thenReturn(S_OK);
+    when(mockShellWin32Api.getPathForShellItem(any)).thenReturn(filePath);
+
+    final List<String?>? result = dialogWrapperModeSave.show(parentWindow);
+
+    expect(result?.first, filePath);
+  });
+}
+
+void mockSetFileTypesConditions(
+    MockFileDialogController mockFileDialogController,
+    String expectedPszName,
+    String expectedPszSpec) {
+  when(mockFileDialogController.setFileTypes(1, any))
+      .thenAnswer((Invocation realInvocation) {
+    final Pointer<COMDLG_FILTERSPEC> pointer =
+        realInvocation.positionalArguments[1] as Pointer<COMDLG_FILTERSPEC>;
+
+    return pointer[0].pszName.toDartString() == expectedPszName &&
+            pointer[0].pszSpec.toDartString() == expectedPszSpec
+        ? S_OK
+        : E_FAIL;
+  });
+}
+
+void setDefaultMocks(
+    MockFileDialogController mockFileDialogController, int defaultReturnValue) {
+  when(mockFileDialogController.setOptions(any)).thenReturn(defaultReturnValue);
+  when(mockFileDialogController.getOptions(any)).thenReturn(defaultReturnValue);
+  when(mockFileDialogController.setOkButtonLabel(any))
+      .thenReturn(defaultReturnValue);
+  when(mockFileDialogController.setFileName(any))
+      .thenReturn(defaultReturnValue);
+  when(mockFileDialogController.setFileTypes(any, any))
+      .thenReturn(defaultReturnValue);
+  when(mockFileDialogController.setFolder(any)).thenReturn(defaultReturnValue);
+}
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/dialog_wrapper_test.mocks.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/dialog_wrapper_test.mocks.dart
new file mode 100644
index 000000000000..5227cc12b188
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/dialog_wrapper_test.mocks.dart
@@ -0,0 +1,151 @@
+// Mocks generated by Mockito 5.3.2 from annotations
+// in file_selector_windows/test/file_selector_dart/dialog_wrapper_test.dart.
+// Do not manually edit this file.
+
+// ignore_for_file: no_leading_underscores_for_library_prefixes
+import 'dart:ffi' as _i3;
+
+import 'package:file_selector_windows/src/file_selector_dart/file_dialog_controller.dart'
+    as _i2;
+import 'package:file_selector_windows/src/file_selector_dart/shell_win32_api.dart'
+    as _i5;
+import 'package:mockito/mockito.dart' as _i1;
+import 'package:win32/win32.dart' as _i4;
+
+// ignore_for_file: type=lint
+// ignore_for_file: avoid_redundant_argument_values
+// ignore_for_file: avoid_setters_without_getters
+// ignore_for_file: comment_references
+// ignore_for_file: implementation_imports
+// ignore_for_file: invalid_use_of_visible_for_testing_member
+// ignore_for_file: prefer_const_constructors
+// ignore_for_file: unnecessary_parenthesis
+// ignore_for_file: camel_case_types
+// ignore_for_file: subtype_of_sealed_class
+
+/// A class which mocks [FileDialogController].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockFileDialogController extends _i1.Mock
+    implements _i2.FileDialogController {
+  MockFileDialogController() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  int setFolder(_i3.Pointer<_i4.COMObject>? path) => (super.noSuchMethod(
+        Invocation.method(
+          #setFolder,
+          [path],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int setFileName(String? name) => (super.noSuchMethod(
+        Invocation.method(
+          #setFileName,
+          [name],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int setFileTypes(
+    int? count,
+    _i3.Pointer<_i4.COMDLG_FILTERSPEC>? filters,
+  ) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #setFileTypes,
+          [
+            count,
+            filters,
+          ],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int setOkButtonLabel(String? text) => (super.noSuchMethod(
+        Invocation.method(
+          #setOkButtonLabel,
+          [text],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int getOptions(_i3.Pointer<_i3.Uint32>? outOptions) => (super.noSuchMethod(
+        Invocation.method(
+          #getOptions,
+          [outOptions],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int setOptions(int? options) => (super.noSuchMethod(
+        Invocation.method(
+          #setOptions,
+          [options],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int show(int? parent) => (super.noSuchMethod(
+        Invocation.method(
+          #show,
+          [parent],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int getResult(_i3.Pointer<_i3.Pointer<_i4.COMObject>>? outItem) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #getResult,
+          [outItem],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  int getResults(_i3.Pointer<_i3.Pointer<_i4.COMObject>>? outItems) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #getResults,
+          [outItems],
+        ),
+        returnValue: 0,
+      ) as int);
+}
+
+/// A class which mocks [ShellWin32Api].
+///
+/// See the documentation for Mockito's code generation for more information.
+class MockShellWin32Api extends _i1.Mock implements _i5.ShellWin32Api {
+  MockShellWin32Api() {
+    _i1.throwOnMissingStub(this);
+  }
+
+  @override
+  int createItemFromParsingName(
+    String? initialDirectory,
+    _i3.Pointer<_i4.GUID>? ptrGuid,
+    _i3.Pointer<_i3.Pointer<_i3.NativeType>>? ptrPath,
+  ) =>
+      (super.noSuchMethod(
+        Invocation.method(
+          #createItemFromParsingName,
+          [
+            initialDirectory,
+            ptrGuid,
+            ptrPath,
+          ],
+        ),
+        returnValue: 0,
+      ) as int);
+  @override
+  String getPathForShellItem(_i4.IShellItem? shellItem) => (super.noSuchMethod(
+        Invocation.method(
+          #getPathForShellItem,
+          [shellItem],
+        ),
+        returnValue: '',
+      ) as String);
+}
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_file_dialog.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_file_dialog.dart
new file mode 100644
index 000000000000..84a6713868a6
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_file_dialog.dart
@@ -0,0 +1,112 @@
+// 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 'dart:ffi';
+
+import 'package:ffi/ffi.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:win32/win32.dart';
+
+// Fake IFileDialog class for testing purposes.
+class FakeIFileDialog extends Fake implements IFileDialog {
+  int _getOptionsCalledTimes = 0;
+  int _getResultCalledTimes = 0;
+  int _setOptionsCalledTimes = 0;
+  int _setFolderCalledTimes = 0;
+  int _setFileNameCalledTimes = 0;
+  int _setFileTypesCalledTimes = 0;
+  int _setOkButtonLabelCalledTimes = 0;
+  int _showCalledTimes = 0;
+
+  @override
+  int getOptions(Pointer<Uint32> pfos) {
+    _getOptionsCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int setOptions(int options) {
+    _setOptionsCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int getResult(Pointer<Pointer<COMObject>> ppsi) {
+    _getResultCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int setFolder(Pointer<COMObject> psi) {
+    _setFolderCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int setFileTypes(int cFileTypes, Pointer<COMDLG_FILTERSPEC> rgFilterSpec) {
+    _setFileTypesCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int setFileName(Pointer<Utf16> pszName) {
+    _setFileNameCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int setOkButtonLabel(Pointer<Utf16> pszText) {
+    _setOkButtonLabelCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int show(int hwndOwner) {
+    _showCalledTimes++;
+    return S_OK;
+  }
+
+  void resetCounters() {
+    _getOptionsCalledTimes = 0;
+    _getResultCalledTimes = 0;
+    _setOptionsCalledTimes = 0;
+    _setFolderCalledTimes = 0;
+    _setFileTypesCalledTimes = 0;
+    _setOkButtonLabelCalledTimes = 0;
+    _showCalledTimes = 0;
+    _setFileNameCalledTimes = 0;
+  }
+
+  int getOptionsCalledTimes() {
+    return _getOptionsCalledTimes;
+  }
+
+  int setOptionsCalledTimes() {
+    return _setOptionsCalledTimes;
+  }
+
+  int getResultCalledTimes() {
+    return _getResultCalledTimes;
+  }
+
+  int setFolderCalledTimes() {
+    return _setFolderCalledTimes;
+  }
+
+  int setFileNameCalledTimes() {
+    return _setFileNameCalledTimes;
+  }
+
+  int setFileTypesCalledTimes() {
+    return _setFileTypesCalledTimes;
+  }
+
+  int setOkButtonLabelCalledTimes() {
+    return _setOkButtonLabelCalledTimes;
+  }
+
+  int showCalledTimes() {
+    return _showCalledTimes;
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_ifile_open_dialog.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_ifile_open_dialog.dart
new file mode 100644
index 000000000000..14dd9eb9f215
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_ifile_open_dialog.dart
@@ -0,0 +1,55 @@
+// 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 'dart:ffi';
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:win32/win32.dart';
+
+// Fake IFileOpenDialog class for testing purposes.
+class FakeIFileOpenDialog extends Fake implements IFileOpenDialog {
+  int _getResultsCalledTimes = 0;
+  int _getReleaseCalledTimes = 0;
+  bool _shouldFail = false;
+
+  @override
+  Pointer<COMObject> get ptr => nullptr;
+
+  @override
+  int release() {
+    _getReleaseCalledTimes++;
+    return S_OK;
+  }
+
+  @override
+  int getResults(Pointer<Pointer<COMObject>> ppsi) {
+    _getResultsCalledTimes++;
+    if (_shouldFail) {
+      throw WindowsException(E_FAIL);
+    }
+
+    return S_OK;
+  }
+
+  void resetCounters() {
+    _getResultsCalledTimes = 0;
+    _getReleaseCalledTimes = 0;
+  }
+
+  int getResultsCalledTimes() {
+    return _getResultsCalledTimes;
+  }
+
+  int getReleaseCalledTimes() {
+    return _getReleaseCalledTimes;
+  }
+
+  void mockFailure() {
+    _shouldFail = true;
+  }
+
+  void mockSuccess() {
+    _shouldFail = false;
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_ifile_open_dialog_factory.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_ifile_open_dialog_factory.dart
new file mode 100644
index 000000000000..042a14f56d5a
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/fake_ifile_open_dialog_factory.dart
@@ -0,0 +1,40 @@
+// 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_windows/src/file_selector_dart/ifile_open_dialog_factory.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:win32/win32.dart';
+
+import 'fake_ifile_open_dialog.dart';
+
+// Fake FakeIFileOpenDialogFactory class for testing purposes.
+class FakeIFileOpenDialogFactory extends Fake
+    implements IFileOpenDialogFactory {
+  int _fromCalledTimes = 0;
+  bool _shouldFail = false;
+
+  final FakeIFileOpenDialog fakeIFileOpenDialog = FakeIFileOpenDialog();
+
+  @override
+  IFileOpenDialog from(IFileDialog dialog) {
+    _fromCalledTimes++;
+    if (_shouldFail) {
+      throw WindowsException(E_NOINTERFACE);
+    }
+
+    return fakeIFileOpenDialog;
+  }
+
+  int getFromCalledTimes() {
+    return _fromCalledTimes;
+  }
+
+  void mockSuccess() {
+    _shouldFail = false;
+  }
+
+  void mockFailure() {
+    _shouldFail = true;
+  }
+}
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/file_dialog_controller_factory_test.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/file_dialog_controller_factory_test.dart
new file mode 100644
index 000000000000..fe100ecdebca
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/file_dialog_controller_factory_test.dart
@@ -0,0 +1,21 @@
+// 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_windows/src/file_selector_dart/file_dialog_controller.dart';
+import 'package:file_selector_windows/src/file_selector_dart/file_dialog_controller_factory.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:win32/win32.dart';
+
+import 'fake_file_dialog.dart';
+
+void main() {
+  final FileDialogControllerFactory fileDialogControllerFactory =
+      FileDialogControllerFactory();
+  final IFileDialog dialog = FakeIFileDialog();
+
+  test('createController should return a FileDialogController', () {
+    expect(fileDialogControllerFactory.createController(dialog),
+        isA<FileDialogController>());
+  });
+}
diff --git a/packages/file_selector/file_selector_windows/test/file_selector_dart/file_dialog_controller_test.dart b/packages/file_selector/file_selector_windows/test/file_selector_dart/file_dialog_controller_test.dart
new file mode 100644
index 000000000000..719a9ad74277
--- /dev/null
+++ b/packages/file_selector/file_selector_windows/test/file_selector_dart/file_dialog_controller_test.dart
@@ -0,0 +1,131 @@
+// 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 'dart:ffi';
+
+import 'package:ffi/ffi.dart';
+import 'package:file_selector_windows/src/file_selector_dart/file_dialog_controller.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:win32/win32.dart';
+
+import 'fake_file_dialog.dart';
+import 'fake_ifile_open_dialog_factory.dart';
+
+void main() {
+  final FakeIFileDialog fakeFileOpenDialog = FakeIFileDialog();
+  final FakeIFileOpenDialogFactory fakeIFileOpenDialogFactory =
+      FakeIFileOpenDialogFactory();
+  final FileDialogController fileDialogController =
+      FileDialogController(fakeFileOpenDialog, fakeIFileOpenDialogFactory);
+
+  setUp(() {
+    fakeIFileOpenDialogFactory.mockSuccess();
+    fakeIFileOpenDialogFactory.fakeIFileOpenDialog.mockSuccess();
+  });
+
+  tearDown(() {
+    fakeFileOpenDialog.resetCounters();
+    fakeIFileOpenDialogFactory.fakeIFileOpenDialog.resetCounters();
+  });
+
+  test('setFolder should call dialog setFolder', () {
+    final Pointer<COMObject> ptrFolder = calloc<COMObject>();
+    fileDialogController.setFolder(ptrFolder);
+    free(ptrFolder);
+    expect(fakeFileOpenDialog.setFolderCalledTimes(), 1);
+  });
+
+  test('setFileName should call dialog setFileName', () {
+    fileDialogController.setFileName('fileName');
+    expect(fakeFileOpenDialog.setFileNameCalledTimes(), 1);
+  });
+
+  test('setFileTypes should call dialog setFileTypes', () {
+    final Pointer<COMDLG_FILTERSPEC> ptrFilters = calloc<COMDLG_FILTERSPEC>();
+    fileDialogController.setFileTypes(1, ptrFilters);
+    free(ptrFilters);
+    expect(fakeFileOpenDialog.setFileTypesCalledTimes(), 1);
+  });
+
+  test('setOkButtonLabel should call dialog setOkButtonLabel', () {
+    fileDialogController.setOkButtonLabel('button');
+    expect(fakeFileOpenDialog.setOkButtonLabelCalledTimes(), 1);
+  });
+
+  test('show should call dialog show', () {
+    fileDialogController.show(0);
+    expect(fakeFileOpenDialog.showCalledTimes(), 1);
+  });
+
+  test('getOptions should call dialog getOptions', () {
+    final Pointer<Uint32> ptrOptions = calloc<Uint32>();
+    fileDialogController.getOptions(ptrOptions);
+    free(ptrOptions);
+    expect(fakeFileOpenDialog.getOptionsCalledTimes(), 1);
+  });
+
+  test('setOptions should call dialog setOptions', () {
+    fileDialogController.setOptions(32);
+    expect(fakeFileOpenDialog.setOptionsCalledTimes(), 1);
+  });
+
+  test('getResult should call dialog getResult', () {
+    final Pointer<Pointer<COMObject>> ptrCOMObject =
+        calloc<Pointer<COMObject>>();
+    fileDialogController.getResult(ptrCOMObject);
+    free(ptrCOMObject);
+    expect(fakeFileOpenDialog.getResultCalledTimes(), 1);
+  });
+
+  test('getResults should call the from method of the factory', () {
+    final Pointer<Pointer<COMObject>> ptrCOMObject =
+        calloc<Pointer<COMObject>>();
+    fileDialogController.getResults(ptrCOMObject);
+    free(ptrCOMObject);
+    expect(fakeIFileOpenDialogFactory.getFromCalledTimes(), 1);
+  });
+
+  test('getResults should call dialog getResults', () {
+    final Pointer<Pointer<COMObject>> ptrCOMObject =
+        calloc<Pointer<COMObject>>();
+    fileDialogController.getResults(ptrCOMObject);
+    free(ptrCOMObject);
+    expect(
+        fakeIFileOpenDialogFactory.fakeIFileOpenDialog.getResultsCalledTimes(),
+        1);
+  });
+
+  test(
+      'getResults should return an error when building a file open dialog throws',
+      () {
+    final Pointer<Pointer<COMObject>> ptrCOMObject =
+        calloc<Pointer<COMObject>>();
+    fakeIFileOpenDialogFactory.mockFailure();
+    free(ptrCOMObject);
+    expect(fileDialogController.getResults(ptrCOMObject), E_FAIL);
+  });
+
+  test(
+      'getResults should return an error and release the dialog when getting results throws',
+      () {
+    final Pointer<Pointer<COMObject>> ptrCOMObject =
+        calloc<Pointer<COMObject>>();
+    fakeIFileOpenDialogFactory.fakeIFileOpenDialog.mockFailure();
+    free(ptrCOMObject);
+    expect(fileDialogController.getResults(ptrCOMObject), E_FAIL);
+    expect(
+        fakeIFileOpenDialogFactory.fakeIFileOpenDialog.getReleaseCalledTimes(),
+        1);
+  });
+
+  test('getResults should call dialog release', () {
+    final Pointer<Pointer<COMObject>> ptrCOMObject =
+        calloc<Pointer<COMObject>>();
+    fileDialogController.getResults(ptrCOMObject);
+    free(ptrCOMObject);
+    expect(
+        fakeIFileOpenDialogFactory.fakeIFileOpenDialog.getReleaseCalledTimes(),
+        1);
+  });
+}