Updates tests to use new methods.

* Moves tests of old methods to a "Deprecated" group so they can be
  cleaned up easily later.

packages/image_picker/image_picker_for_web/example/integration_test/image_picker_for_web_test.dart

@@ -33,7 +33,9 @@ void main() {
     plugin = ImagePickerPlugin();
   });
 
-  testWidgets('Can select a file', (WidgetTester tester) async {
+  testWidgets('getImageFromSource can select a file', (
+    WidgetTester _,
+  ) async {
     final html.FileUploadInputElement mockInput = html.FileUploadInputElement();
 
     final ImagePickerPluginTestOverrides overrides =
@@ -44,7 +46,9 @@ void main() {
     final ImagePickerPlugin plugin = ImagePickerPlugin(overrides: overrides);
 
     // Init the pick file dialog...
-    final Future<XFile?> image = plugin.getImage(source: ImageSource.camera);
+    final Future<XFile?> image = plugin.getImageFromSource(
+      source: ImageSource.camera,
+    );
 
     // Mock the browser behavior of selecting a file...
     mockInput.dispatchEvent(html.Event('change'));
@@ -66,8 +70,9 @@ void main() {
         ));
   });
 
-  testWidgets('getMultiImage can select multiple files',
-      (WidgetTester tester) async {
+  testWidgets('getMultiImageWithOptions can select multiple files', (
+    WidgetTester _,
+  ) async {
     final html.FileUploadInputElement mockInput = html.FileUploadInputElement();
 
     final ImagePickerPluginTestOverrides overrides =
@@ -79,7 +84,7 @@ void main() {
     final ImagePickerPlugin plugin = ImagePickerPlugin(overrides: overrides);
 
     // Init the pick file dialog...
-    final Future<List<XFile>> files = plugin.getMultiImage();
+    final Future<List<XFile>> files = plugin.getMultiImageWithOptions();
 
     // Mock the browser behavior of selecting a file...
     mockInput.dispatchEvent(html.Event('change'));
@@ -97,8 +102,7 @@ void main() {
     expect(secondFile.length(), completion(secondTextFile.size));
   });
 
-  testWidgets('getMedia can select multiple files',
-      (WidgetTester tester) async {
+  testWidgets('getMedia can select multiple files', (WidgetTester _) async {
     final html.FileUploadInputElement mockInput = html.FileUploadInputElement();
 
     final ImagePickerPluginTestOverrides overrides =
@@ -165,16 +169,18 @@ void main() {
       expect(await files, isEmpty);
     });
 
-    testWidgets('getMultiImage - returns empty list', (WidgetTester _) async {
-      final Future<List<XFile>?> files = plugin.getMultiImage();
+    testWidgets('getMultiImageWithOptions - returns empty list', (
+      WidgetTester _,
+    ) async {
+      final Future<List<XFile>?> files = plugin.getMultiImageWithOptions();
       mockCancel();
 
       expect(files, completes);
       expect(await files, isEmpty);
     });
 
-    testWidgets('getImage - returns null', (WidgetTester _) async {
-      final Future<XFile?> file = plugin.getImage(
+    testWidgets('getImageFromSource - returns null', (WidgetTester _) async {
+      final Future<XFile?> file = plugin.getImageFromSource(
         source: ImageSource.gallery,
       );
       mockCancel();
@@ -250,4 +256,102 @@ void main() {
       expect(input.attributes, contains('multiple'));
     });
   });
+
+  group('Deprecated methods', () {
+    late html.FileUploadInputElement mockInput;
+    late ImagePickerPluginTestOverrides overrides;
+    late ImagePickerPlugin plugin;
+
+    setUp(() {
+      mockInput = html.FileUploadInputElement();
+      overrides = ImagePickerPluginTestOverrides()
+        ..createInputElement = ((_, __) => mockInput)
+        ..getMultipleFilesFromInput = ((_) => <html.File>[textFile]);
+      plugin = ImagePickerPlugin(overrides: overrides);
+    });
+
+    void mockCancel() {
+      mockInput.dispatchEvent(html.Event('cancel'));
+    }
+
+    void mockChange() {
+      mockInput.dispatchEvent(html.Event('change'));
+    }
+
+    group('getImage', () {
+      testWidgets('can select a file', (WidgetTester _) async {
+        // ignore: deprecated_member_use
+        final Future<XFile?> image = plugin.getImage(
+          source: ImageSource.camera,
+        );
+
+        // Mock the browser behavior when selecting a file...
+        mockChange();
+
+        // Now the file should be available
+        expect(image, completes);
+
+        // And readable
+        final XFile? file = await image;
+        expect(file, isNotNull);
+        expect(file!.readAsBytes(), completion(isNotEmpty));
+        expect(file.name, textFile.name);
+        expect(file.length(), completion(textFile.size));
+        expect(file.mimeType, textFile.type);
+        expect(
+            file.lastModified(),
+            completion(
+              DateTime.fromMillisecondsSinceEpoch(textFile.lastModified!),
+            ));
+      });
+
+      testWidgets('returns null when canceled', (WidgetTester _) async {
+        // ignore: deprecated_member_use
+        final Future<XFile?> file = plugin.getImage(
+          source: ImageSource.gallery,
+        );
+        mockCancel();
+
+        expect(file, completes);
+        expect(await file, isNull);
+      });
+    });
+
+    group('getMultiImage', () {
+      testWidgets('can select multiple files', (WidgetTester _) async {
+        // Override the returned files...
+        overrides.getMultipleFilesFromInput =
+            (_) => <html.File>[textFile, secondTextFile];
+
+        // ignore: deprecated_member_use
+        final Future<List<XFile>> files = plugin.getMultiImage();
+
+        // Mock the browser behavior of selecting a file...
+        mockChange();
+
+        // Now the file should be available
+        expect(files, completes);
+
+        // And readable
+        expect((await files).first.readAsBytes(), completion(isNotEmpty));
+
+        // Peek into the second file...
+        final XFile secondFile = (await files).elementAt(1);
+        expect(secondFile.readAsBytes(), completion(isNotEmpty));
+        expect(secondFile.name, secondTextFile.name);
+        expect(secondFile.length(), completion(secondTextFile.size));
+      });
+
+      testWidgets('returns an empty list when canceled', (
+        WidgetTester _,
+      ) async {
+        // ignore: deprecated_member_use
+        final Future<List<XFile>?> files = plugin.getMultiImage();
+        mockCancel();
+
+        expect(files, completes);
+        expect(await files, isEmpty);
+      });
+    });
+  });
 }