diff --git a/Guide Files.rar b/Guide Files.rar
deleted file mode 100644
index dc828df..0000000
Binary files a/Guide Files.rar and /dev/null differ
diff --git a/Guide Files/Guide 1.pdf b/Guide Files/Guide 1.pdf
new file mode 100644
index 0000000..fe5c773
Binary files /dev/null and b/Guide Files/Guide 1.pdf differ
diff --git a/Guide Files/Guide 2.pdf b/Guide Files/Guide 2.pdf
new file mode 100644
index 0000000..8f2a642
Binary files /dev/null and b/Guide Files/Guide 2.pdf differ
diff --git a/Guide Files/Guide 3.pdf b/Guide Files/Guide 3.pdf
new file mode 100644
index 0000000..b81e21b
Binary files /dev/null and b/Guide Files/Guide 3.pdf differ
diff --git a/Guide Files/Guide 4.pdf b/Guide Files/Guide 4.pdf
new file mode 100644
index 0000000..4af3bb2
Binary files /dev/null and b/Guide Files/Guide 4.pdf differ
diff --git a/Supplement Files.rar b/Supplement Files.rar
deleted file mode 100644
index be6dc3a..0000000
Binary files a/Supplement Files.rar and /dev/null differ
diff --git a/Supplement Files/Picture1.png b/Supplement Files/Picture1.png
new file mode 100644
index 0000000..caf7c4e
Binary files /dev/null and b/Supplement Files/Picture1.png differ
diff --git a/Supplement Files/Picture2.png b/Supplement Files/Picture2.png
new file mode 100644
index 0000000..cbc7844
Binary files /dev/null and b/Supplement Files/Picture2.png differ
diff --git a/Supplement Files/Picture3.png b/Supplement Files/Picture3.png
new file mode 100644
index 0000000..186d244
Binary files /dev/null and b/Supplement Files/Picture3.png differ
diff --git a/Test Files.rar b/Test Files.rar
deleted file mode 100644
index 3405d35..0000000
Binary files a/Test Files.rar and /dev/null differ
diff --git a/Test Files/guide1_test.dart b/Test Files/guide1_test.dart
new file mode 100644
index 0000000..7fafa94
--- /dev/null
+++ b/Test Files/guide1_test.dart	
@@ -0,0 +1,30 @@
+// This is a basic Flutter widget test.
+//
+// To perform an interaction with a widget in your test, use the WidgetTester
+// utility that Flutter provides. For example, you can send tap and scroll
+// gestures. You can also use WidgetTester to find child widgets in the widget
+// tree, read text, and verify that the values of widget properties are correct.
+
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+
+import 'package:simple_database/main.dart';
+
+void main() {
+  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
+    // Build our app and trigger a frame.
+    await tester.pumpWidget(const MyApp());
+
+    // Verify that our counter starts at 0.
+    expect(find.text('0'), findsOneWidget);
+    expect(find.text('1'), findsNothing);
+
+    // Tap the '+' icon and trigger a frame.
+    await tester.tap(find.byIcon(Icons.add));
+    await tester.pump();
+
+    // Verify that our counter has incremented.
+    expect(find.text('0'), findsNothing);
+    expect(find.text('1'), findsOneWidget);
+  });
+}
diff --git a/Test Files/guide2_test.dart b/Test Files/guide2_test.dart
new file mode 100644
index 0000000..a9d58ad
--- /dev/null
+++ b/Test Files/guide2_test.dart	
@@ -0,0 +1,116 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:simple_database/utils/contact.dart';
+import 'package:simple_database/utils/dbhelper.dart';
+import 'package:sqflite/sqflite.dart';
+import 'package:sqflite_common_ffi/sqflite_ffi.dart';
+
+/// Initialize sqflite for test.
+void sqfliteTestInit() {
+  // Initialize ffi implementation
+  sqfliteFfiInit();
+  // Set global factory
+  databaseFactory = databaseFactoryFfi;
+}
+
+Future main() async {
+  DbHelper dbhelper = DbHelper();
+
+  setUpAll(()async{
+    sqfliteTestInit();
+    await dbhelper.initDatabase();
+  });
+
+
+  test('Save Contact Test', () async {
+    Contact contact = Contact(
+        name: 'Rizkia',
+        number: '081234567892',
+        email: 'rizqi@example.com',
+        company: 'Polinema');
+    int? result = await dbhelper.saveContact(contact);
+    expect(result, greaterThanOrEqualTo(1), reason:
+    "There is something wrong with your saveContact code, back to guideA02");
+  });
+
+  test('Get All Contact Test', () async {
+    List? result = await dbhelper.getAllContact();
+    expect(result?.length, greaterThanOrEqualTo(0), reason: "There is something wrong with your getAllContact code. "
+        "Back to Guide A02");
+    print(result.toString());
+  });
+
+  test('Update Contact Test-Column Name', () async {
+    List? result = await dbhelper.getAllContact();
+    int id = result![0]['id'];
+    String email = result[0]['email'];
+    String number = result[0]['number'];
+    String company = result[0]['company'];
+    Contact contact = Contact(
+      id: id,
+      name: 'Ana',
+      number: number,
+      email: email,
+      company: company,
+    );
+    int? updateResult = await dbhelper.updateContact(contact);
+    expect(updateResult, greaterThanOrEqualTo(1));
+  });
+  test('Update Contact Test-Column number', () async {
+    List? result = await dbhelper.getAllContact();
+    int id = result![0]['id'];
+    String email = result[0]['email'];
+    String name = result[0]['name'];
+    String company = result[0]['company'];
+    Contact contact = Contact(
+      id: id,
+      name: name,
+      number: '0879652437',
+      email: email,
+      company: company,
+    );
+    int? updateResult = await dbhelper.updateContact(contact);
+    expect(updateResult, greaterThanOrEqualTo(1));
+  });
+
+  test('Update Contact Test-Column email', () async {
+    List? result = await dbhelper.getAllContact();
+    int id = result![0]['id'];
+    String name = result[0]['name'];
+    String number = result[0]['number'];
+    String company = result[0]['company'];
+    Contact contact = Contact(
+      id: id,
+      name: name,
+      number: number,
+      email: 'ana@gmail.com',
+      company: company,
+    );
+    int? updateResult = await dbhelper.updateContact(contact);
+    expect(updateResult, greaterThanOrEqualTo(1));
+  });
+
+  test('Update Contact Test-Column Company', () async {
+    List? result = await dbhelper.getAllContact();
+    int id = result![0]['id'];
+    String email = result[0]['email'];
+    String number = result[0]['number'];
+    String name = result[0]['name'];
+    Contact contact = Contact(
+      id: id,
+      name: name,
+      number: number,
+      email: email,
+      company: 'Polinema',
+    );
+    int? updateResult = await dbhelper.updateContact(contact);
+    expect(updateResult, greaterThanOrEqualTo(1));
+  });
+
+  test('Delete Kontak Test', () async {
+    List? result = await dbhelper.getAllContact();
+    int id = result![0]['id'];
+    int? deleteResult = await dbhelper.deleteContact(id);
+    expect(deleteResult, 1, reason: "There is something wrong in delete code");
+  });
+
+}
\ No newline at end of file
diff --git a/Test Files/guide3_1_test.dart b/Test Files/guide3_1_test.dart
new file mode 100644
index 0000000..f0e8272
--- /dev/null
+++ b/Test Files/guide3_1_test.dart	
@@ -0,0 +1,141 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:simple_database/screens/contact_form.dart';
+
+void main(){
+
+  void checkOneWidget(Finder finder){
+    const String trimStr1 = 'zero widgets with type "';
+    const String trimStr2 = '" (ignoring offstage widget)';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsOneWidget, reason: "Problem: Widget $finderMsg not found ");
+  }
+
+  void checkNothing(Finder finder){
+    const String trimStr1 = 'exactly one widget with type "';
+    const String trimStr2 = '" this widget should not exist';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsNothing, reason: "Problem: $finderMsg");
+  }
+
+  testWidgets('UI Component-Sacffold Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findAppBar = find.byKey(const Key("scaffold_contactform"));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-AppBar Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findAppBar = find.byKey(const Key("contact_form_appbar"));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-Title AppBar Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTitleAppBar = find.byKey(const Key('title_appbar_contactform'));
+    checkOneWidget(findTitleAppBar);
+  });
+  //
+  testWidgets('UI Component-Form Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findFormWidget = find.byType(Form);
+    checkOneWidget(findFormWidget);
+  });
+  //
+  testWidgets('UI Component-ListView Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findListViewWidget = find.byKey(const Key('listview'));
+    checkOneWidget(findListViewWidget);
+  });
+  //
+  testWidgets('UI Component-TextFormField Name Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('name_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+
+  testWidgets('UI Component-Label Name Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.text('Name');
+    checkOneWidget(findTextFormField);
+  });
+
+  testWidgets('UI Component-TextFormField Number Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('number_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Number Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.text('Number');
+    checkOneWidget(findTextFormField);
+  });
+
+  testWidgets('UI Component-TextFormField email Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('email_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Email Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.text('Email');
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-TextFormField Company Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('company_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Company Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.text('Company');
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Padding Name Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('padding_name'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Padding Number Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('padding_number'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Padding email Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('padding_email'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-padding Company Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findTextFormField = find.byKey(const Key('padding_company'));
+    checkOneWidget(findTextFormField);
+  });
+  //
+  testWidgets('UI Component-ElevatedButton', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findElevatedButton = find.byKey(const Key('padding_button'));
+    checkOneWidget(findElevatedButton);
+  });
+
+  testWidgets('UI Component-ElevatedButton', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findElevatedButton = find.byKey(const Key('elevatedbutton_contactform'));
+    checkOneWidget(findElevatedButton);
+
+  });
+  //
+  testWidgets('UI Component-ElevatedButton-Update Not Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactForm()));
+    Finder findTextUpdate = find.byKey(const Key('update_text'));
+    checkNothing(findTextUpdate);
+  });
+  //
+  testWidgets('UI Component-ElevatedButton-Add Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactForm()));
+    Finder findTextAdd = find.byKey(const Key('add_text'));
+    checkOneWidget(findTextAdd);
+  });
+}
\ No newline at end of file
diff --git a/Test Files/guide3_2_test.dart b/Test Files/guide3_2_test.dart
new file mode 100644
index 0000000..e2ec0ad
--- /dev/null
+++ b/Test Files/guide3_2_test.dart	
@@ -0,0 +1,160 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:simple_database/screens/contact_form.dart';
+import 'package:simple_database/utils/contact.dart';
+
+void main(){
+  Contact c = Contact(name: "Risa", email: "risa@gmail.com", number: "087654389090", company: "Polinema");
+
+  void checkOneWidget(Finder finder){
+    const String trimStr1 = 'zero widgets with type "';
+    const String trimStr2 = '" (ignoring offstage widget)';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsOneWidget, reason: "Problem: Widget $finderMsg not found ");
+  }
+
+  void checkNothing(Finder finder){
+    const String trimStr1 = 'exactly one widget with type "';
+    const String trimStr2 = '" this widget should not exist';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsNothing, reason: "Problem: $finderMsg not found");
+  }
+
+  testWidgets('UI Component-Sacffold Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactForm()));
+    Finder findAppBar = find.byKey(const Key("scaffold_contactform"));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-AppBar Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findAppBar = find.byKey(const Key("contact_form_appbar"));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-Title AppBar Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTitleAppBar = find.byKey(const Key('title_appbar_contactform'));
+    checkOneWidget(findTitleAppBar);
+  });
+  //
+  testWidgets('UI Component-Form Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findFormWidget = find.byType(Form);
+    checkOneWidget(findFormWidget);
+  });
+  //
+  testWidgets('UI Component-ListView Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findListViewWidget = find.byKey(const Key('listview'));
+    checkOneWidget(findListViewWidget);
+  });
+  //
+  testWidgets('UI Component-TextFormField Name Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('name_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-TextFormField Number Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('number_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-TextFormField email Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('email_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-TextFormField Company Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('company_textformfield'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Name Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.text('Name');
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Padding Name Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('padding_name'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Padding Number Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('padding_number'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Number Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.text('Number');
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Email Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.text('Email');
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Label Company Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.text('Company');
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-Padding email Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('padding_email'));
+    checkOneWidget(findTextFormField);
+  });
+  testWidgets('UI Component-padding Company Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findTextFormField = find.byKey(const Key('padding_company'));
+    checkOneWidget(findTextFormField);
+  });
+  //
+  testWidgets('TextFormField Name has data', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    String name = c.name.toString();
+    expect(find.widgetWithText(TextFormField, name), findsNothing, reason: "Seharusnya ada data nama $name pada form");
+  });
+
+  testWidgets('TextFormField Email has data', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    String email = c.email.toString();
+    Finder findWidgetTextEmail = find.widgetWithText(TextFormField, email);
+    checkOneWidget(findWidgetTextEmail);
+  });
+
+  testWidgets('TextFormField Company has data', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    String company = c.company.toString();
+    Finder findWidgetTextCompany = find.widgetWithText(TextFormField, company);
+    checkOneWidget(findWidgetTextCompany);
+  });
+
+  testWidgets('TextFormField number phone has data', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    String number = c.number.toString();
+    Finder findWidgetTextCompany = find.widgetWithText(TextFormField, number);
+    checkOneWidget(findWidgetTextCompany);
+  });
+  //
+  testWidgets('UI Component-ElevatedButton', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c,)));
+    Finder findElevatedButton = find.byKey(const Key('padding_button'));
+    checkOneWidget(findElevatedButton);
+  });
+  //
+  testWidgets('UI Component-ElevatedButton-Update Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c)));
+    Finder findTextUpdate = find.byKey(const Key('update_text'));
+    checkOneWidget(findTextUpdate);
+  });
+  testWidgets('UI Component-ElevatedButton-Add Not Found', (WidgetTester tester) async{
+    await tester.pumpWidget(MaterialApp(home: ContactForm(contact: c)));
+    Finder findTextUpdate = find.byKey(const Key('add_text'));
+    checkNothing(findTextUpdate);
+  });
+
+}
\ No newline at end of file
diff --git a/Test Files/guide4_1_test.dart b/Test Files/guide4_1_test.dart
new file mode 100644
index 0000000..8a1d138
--- /dev/null
+++ b/Test Files/guide4_1_test.dart	
@@ -0,0 +1,63 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:simple_database/screens/contact_list.dart';
+
+void main(){
+  void checkOneWidget(Finder finder){
+    const String trimStr1 = 'zero widgets with type "';
+    const String trimStr2 = '" (ignoring offstage widget)';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsOneWidget, reason: "Problem: $finderMsg not found ");
+  }
+
+  void checkNothing(Finder finder){
+    const String trimStr1 = 'exactly one widget with type "';
+    const String trimStr2 = '" this widget should not exist';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsNothing, reason: "Problem: $finderMsg");
+  }
+  testWidgets('UI Component-Scaffold Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findAppBar = find.byKey(const Key('scaffold_contactlist'));
+    checkOneWidget(findAppBar);
+  });
+  testWidgets('UI Component-AppBar Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findAppBar = find.byKey(const Key('appbar_contactlist'));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-Center Title AppBar', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findAppBar = find.byKey(const Key('center_text_appbar'));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-Title AppBar Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findTitleAppBar = find.byKey(const Key('title_appbar_contactlist'));
+    checkOneWidget(findTitleAppBar);
+  });
+
+  testWidgets('UI Component-ListView Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListViewWidget = find.byKey(const Key('listview_contactlist'));
+    checkOneWidget(findListViewWidget);
+  });
+
+  testWidgets('UI Component- FloatingButton Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findButton = find.byKey(const Key('button_add'));
+    Finder findIconAdd = find.byKey( const Key('icon_add'));
+    checkOneWidget(findIconAdd);
+    checkOneWidget(findButton);
+    await tester.tap(findButton);
+    await tester.pumpAndSettle();
+    Finder findAppBar = find.byType(AppBar);
+    checkOneWidget(findAppBar);
+    Finder findTitleAppBar = find.byKey(const Key('title_appbar_contactform'));
+    checkOneWidget(findTitleAppBar);
+  });
+}
\ No newline at end of file
diff --git a/Test Files/guide4_2_test.dart b/Test Files/guide4_2_test.dart
new file mode 100644
index 0000000..8a7aa81
--- /dev/null
+++ b/Test Files/guide4_2_test.dart	
@@ -0,0 +1,218 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:simple_database/main.dart';
+import 'package:simple_database/screens/contact_list.dart';
+import 'package:simple_database/utils/contact.dart';
+
+List<Contact> cl = [
+  Contact(name: "Risa", email: "risa@gmail.com", number: "087654389090", company: "Polinema")
+];
+void main() {
+
+  void checkNWidget(Finder finder, int n, String reason) {
+    expect(finder, findsNWidgets(n), reason: reason);
+  }
+
+  void checkOneWidget(Finder finder){
+    const String trimStr1 = 'zero widgets with type "';
+    const String trimStr2 = '" (ignoring offstage widget)';
+    final finderMsg =
+    finder.toString().replaceAll(trimStr1, '').replaceAll(trimStr2, '');
+    expect(finder, findsOneWidget, reason: "Problem: Widget $finderMsg not found ");
+  }
+
+  testWidgets('UI Component-Scaffold Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findAppBar = find.byKey(const Key('scaffold_contactlist'));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-AppBar Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findAppBar = find.byKey(const Key('appbar_contactlist'));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-Title AppBar Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findTitleAppBar = find.byKey(const Key('title_appbar_contactlist'));
+    checkOneWidget(findTitleAppBar);
+  });
+
+  testWidgets('UI Component-ListView Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListViewWidget = find.byKey(const Key('listview_contactlist'));
+    checkOneWidget(findListViewWidget);
+  });
+
+  testWidgets('UI Component- Padding ListTile found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListTile = find.byKey(const Key('padding_contactlist'));
+    checkOneWidget(findListTile);
+  });
+
+  testWidgets('UI Component- Padding email found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListTile = find.byKey(const Key('padding_email'));
+    checkOneWidget(findListTile);
+  });
+  testWidgets('UI Component- Padding number found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListTile = find.byKey(const Key('padding_number'));
+    checkOneWidget(findListTile);
+  });
+  testWidgets('UI Component- Padding company found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListTile = find.byKey(const Key('padding_company'));
+    checkOneWidget(findListTile);
+  });
+  testWidgets('UI Component- Fittedbox  found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListTile = find.byKey(const Key('fittedbox_contactlist'));
+    checkOneWidget(findListTile);
+  });
+
+  testWidgets('UI Component- Row  found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findListTile = find.byKey(const Key('row_contactlist'));
+    checkOneWidget(findListTile);
+  });
+
+  testWidgets('UI Component- Column found', (tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findcolum = find.byKey(const Key('column_contactlist'));
+    checkOneWidget(findcolum);
+  });
+
+  testWidgets("Contact List when there is data - List Tiles appear with the same number", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      Finder findListTile = find.byKey(Key('litstile_$i'));
+      checkOneWidget(findListTile);
+    }
+  });
+
+  testWidgets("ContactList has data name", (WidgetTester tester) async {
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      String textName = '${cl[i].name}';
+      Finder findTextName = find.text(textName);
+      checkOneWidget(findTextName);
+    }
+  });
+  //correctcode
+  testWidgets("ContactList has data number phone", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      String textNumber = "Phone: ${cl[i].number}";
+      Finder findTextNumber = find.text(textNumber);
+      checkOneWidget(findTextNumber);
+    }
+  });
+
+  testWidgets("ContactList has data company ", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      String textCompany = "Company: ${cl[i].company}";
+      Finder findTextCompany = find.text(textCompany);
+      checkOneWidget(findTextCompany);
+    }
+  });
+
+  testWidgets("ContactList has data email", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      String textEmail = "Email: ${cl[i].email}";
+      Finder findTextEmail = find.text(textEmail);
+      checkOneWidget(findTextEmail);
+    }
+  });
+
+  testWidgets("Person icon found", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      Finder findIconPerson = find.byKey(Key('icon_person'));
+      int count = cl.length;
+      checkNWidget(findIconPerson, count, 'Icon person on left data not found');
+    }
+  });
+
+  testWidgets("Delete icon found", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      Finder findIconDelete = find.byKey(Key('icon_delete'));
+      int count = cl.length;
+      checkNWidget(findIconDelete, count, 'Icon person on left data not found');
+    }
+  });
+
+  testWidgets("Edit icon found", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      Finder findIconEdit = find.byKey(Key('icon_edit'));
+      int count = cl.length;
+      checkNWidget(findIconEdit, count, 'Icon person on left data not found');
+    }
+  });
+  //correct code
+  testWidgets("Delete icon found", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      Finder findIconDelete = find.byKey(Key('iconbutton_delete_$i'));
+      int count = cl.length;
+      checkNWidget(findIconDelete, count, 'Icon Delete not found');
+      await tester.tap(findIconDelete);
+      await tester.pumpAndSettle();
+      Finder findAlertDialog = find.byKey(Key('alertdialog'));
+      checkOneWidget(findAlertDialog);
+      Finder findsizedbox = find.byKey(Key('sizedbox'));
+      checkOneWidget(findsizedbox);
+      Finder findtextdelete = find.byKey(const Key('textdeletebutton'));
+      checkOneWidget(findtextdelete);
+      Finder findtextcancel = find.byKey(const Key('textcancelbutton'));
+      checkOneWidget(findtextcancel);
+    }
+  });
+
+  //correctcode
+  testWidgets("Edit icon found", (WidgetTester tester)async{
+    await tester.pumpWidget(const MaterialApp(home: const ContactList()));
+    for (int i = 0; i < cl.length; i++) {
+      Finder findIconEdit = find.byKey(Key('iconbutton_edit_$i'));
+      int count = cl.length;
+      checkNWidget(findIconEdit, count, 'tidak ditemukan');
+      await tester.tap(findIconEdit);
+      await tester.pumpAndSettle();
+      Finder findTitleAppBar = find.byKey(Key('contact_form_appbar'));
+      checkOneWidget(findTitleAppBar);
+    }
+  });
+  testWidgets('UI Component- FloatingButton Found', (WidgetTester tester) async{
+    await tester.pumpWidget(const MaterialApp(home: ContactList()));
+    Finder findButton = find.byKey(const Key('button_add'));
+    Finder findIconAdd = find.byKey( const Key('icon_add'));
+    checkOneWidget(findIconAdd);
+    checkOneWidget(findButton);
+    await tester.tap(findButton);
+    await tester.pumpAndSettle();
+    Finder findAppBar = find.byType(AppBar);
+    checkOneWidget(findAppBar);
+    Finder findTitleAppBar = find.byKey(const Key('title_appbar_contactform'));
+    checkOneWidget(findTitleAppBar);
+  });
+
+  testWidgets('UI Component-Material App Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MyApp());
+    Finder findAppBar = find.byKey(const Key('material_app'));
+    checkOneWidget(findAppBar);
+  });
+
+  testWidgets('UI Component-Home Found', (WidgetTester tester) async {
+    await tester.pumpWidget(const MyApp());
+    Finder findTitleAppBar = find.byKey(const Key('contact_list'));
+    checkOneWidget(findTitleAppBar);
+  });
+}
+
+
+