Made the first test and changed some small things

lib/src/form.dart

@@ -275,19 +275,24 @@ class _FlutterFormState extends ConsumerState<FlutterForm> {
         widget.options.nextButton != null
             ? widget.options.nextButton!(_formController.getCurrentStep(),
                 _formController.getCheckpages())
-            : ElevatedButton(
+            : Align(
+                alignment: AlignmentDirectional.bottomCenter,
+                child: ElevatedButton(
                   style: ElevatedButton.styleFrom(
                       backgroundColor: Theme.of(context).primaryColor,
                       padding: const EdgeInsets.symmetric(
                           horizontal: 40, vertical: 15),
                       textStyle: const TextStyle(
                           fontSize: 20, fontWeight: FontWeight.bold)),
-                onPressed: () => _formController.autoNextStep(),
+                  onPressed: () async {
+                    await _formController.autoNextStep();
+                  },
                   child: Text(_formController.getCurrentStep() >=
                           widget.options.pages.length - 1
                       ? "Finish"
                       : "Next"),
                 ),
+              ),
         if (widget.options.backButton != null)
           widget.options.backButton!(
             _formController.getCurrentStep(),

lib/src/widgets/input/input_types/input_password/input_password.dart

@@ -62,11 +62,11 @@ class FlutterFormInputPasswordController
       String Function(String, {List<String>? params}) translator) {
     if (mandatory) {
       if (value == null || value.isEmpty) {
-        return translator('Field cannot be empty');
+        return translator('Field can not be empty');
       }
 
       if (value.length < 6) {
-        return translator('Field cannot be empty');
+        return translator('Field should be atleast 6 characters long');
       }
     }
 

lib/src/widgets/input/input_types/input_plain_text.dart

@@ -111,7 +111,7 @@ class FlutterFormInputPlainTextController
       String Function(String, {List<String>? params}) translator) {
     if (mandatory) {
       if (value == null || value.isEmpty) {
-        return translator('Field cannot be empty');
+        return translator('Field can not be empty');
       }
     }
 

test/flutter_form_test.dart

@@ -0,0 +1,102 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_form/flutter_form.dart';
+import 'package:flutter_form/next_shell/form.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Normal walk through with check page', (tester) async {
+    FlutterFormController formController = FlutterFormController();
+
+    var testField1Controller = FlutterFormInputPlainTextController(
+      id: 'Field1',
+    );
+
+    var testField2Controller = FlutterFormInputPlainTextController(
+      id: 'Field2',
+    );
+
+    int? onNextPageNumber;
+    Map<String, dynamic>? onNextResults;
+
+    Map<int, Map<String, dynamic>>? onFinishResults;
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Material(
+          child: FlutterForm(
+            options: FlutterFormOptions(
+              checkPage: const CheckPage(),
+              nextButton: (pageNumber, checkingPages) {
+                return Align(
+                  alignment: Alignment.bottomCenter,
+                  child: ElevatedButton(
+                    onPressed: () async {
+                      await formController.autoNextStep();
+                    },
+                    child: Text(pageNumber == 0
+                        ? 'next1'
+                        : pageNumber == 1
+                            ? 'next2'
+                            : 'finish'),
+                  ),
+                );
+              },
+              onFinished: (Map<int, Map<String, dynamic>> results) {
+                print('finished results: $results');
+                onFinishResults = results;
+              },
+              onNext: (int pageNumber, Map<String, dynamic> results) {
+                print('nextResults: $pageNumber: $results');
+                onNextPageNumber = pageNumber;
+                onNextResults = results;
+              },
+              pages: [
+                FlutterFormPage(
+                  child: Center(
+                    child: FlutterFormInputPlainText(
+                      label: const Text('Field1Label'),
+                      controller: testField1Controller,
+                    ),
+                  ),
+                ),
+                FlutterFormPage(
+                  child: Center(
+                    child: FlutterFormInputPlainText(
+                      label: const Text('Field2Label'),
+                      controller: testField2Controller,
+                    ),
+                  ),
+                ),
+              ],
+            ),
+            formController: formController,
+          ),
+        ),
+      ),
+    );
+
+    await tester.enterText(
+        find.widgetWithText(TextFormField, 'Field1Label'), 'Field1Input');
+    await tester.tap(find.widgetWithText(ElevatedButton, 'next1'));
+    await tester.pumpAndSettle();
+
+    expect(0, onNextPageNumber);
+    expect({'Field1': 'Field1Input'}, onNextResults);
+
+    await tester.enterText(
+        find.widgetWithText(TextFormField, 'Field2Label'), 'Field2Input');
+    await tester.tap(find.widgetWithText(ElevatedButton, 'next2'));
+    await tester.pumpAndSettle();
+
+    expect(1, onNextPageNumber);
+    expect({'Field2': 'Field2Input'}, onNextResults);
+
+    await tester.tap(find.widgetWithText(ElevatedButton, "finish"));
+    await tester.pumpAndSettle();
+
+    expect({
+      0: {'Field1': 'Field1Input'},
+      1: {'Field2': 'Field2Input'}
+    }, onFinishResults);
+  });
+}

test/flutter_form_tests.dart

@@ -1 +0,0 @@
-