qwen can use tests.

gui test is working.

CLAUDE.md

@@ -9,7 +9,7 @@
   - `flutter pub get` --> `./flutterw pub get`
   - `flutter run -d linux` --> `./flutterw run -d linux`
 - See `./Makefile` for more examples.
-- If you are an agent, you may be also containerized. Try `distrobox-host-exec $(pwd)/flutterw`
+- If you are an agent, you may be also containerized. If podman or docker is not available, try `distrobox-host-exec ./flutterw`
 
 
 # MANDATORY WORKFLOW

lib/ai/formula_editor.dart

@@ -443,17 +443,17 @@ class _FormulaEditorState extends State<FormulaEditor> {
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
-                      const Text('Base Unit', style: TextStyle(fontSize: 12)),
                       DropdownButtonFormField<String?>(
                         value: _getBaseUnit(variable.unit),
                         decoration: const InputDecoration(
                           border: OutlineInputBorder(),
+                          labelText: "Base unit",
                           contentPadding: EdgeInsets.symmetric(horizontal: 12, vertical: 0),
                         ),
                         items: [
                           const DropdownMenuItem<String?>(
                             value: null,
-                            child: Text('None', style: TextStyle(fontSize: 14)),
+                             child: Text('None', style: TextStyle(fontSize: 14)),
                           ),
                           ..._getAllBaseUnits().map((baseUnit) {
                             return DropdownMenuItem<String?>(
@@ -476,11 +476,11 @@ class _FormulaEditorState extends State<FormulaEditor> {
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
-                      const Text('Derived Unit', style: TextStyle(fontSize: 12)),
                       DropdownButtonFormField<String?>(
                         value: variable.unit,
                         decoration: const InputDecoration(
                           border: OutlineInputBorder(),
+                          labelText: "Derived unit",
                           contentPadding: EdgeInsets.symmetric(horizontal: 12, vertical: 0),
                         ),
                         items: [
@@ -546,11 +546,11 @@ class _FormulaEditorState extends State<FormulaEditor> {
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
-                      const Text('Base Unit', style: TextStyle(fontSize: 12)),
                       DropdownButtonFormField<String?>(
                         value: _getBaseUnit(_outputVariable.unit),
                         decoration: const InputDecoration(
                           border: OutlineInputBorder(),
+                          labelText: "Base unit",
                           contentPadding: EdgeInsets.symmetric(horizontal: 12, vertical: 0),
                         ),
                         items: [
@@ -579,11 +579,11 @@ class _FormulaEditorState extends State<FormulaEditor> {
                   child: Column(
                     crossAxisAlignment: CrossAxisAlignment.start,
                     children: [
-                      const Text('Derived Unit', style: TextStyle(fontSize: 12)),
                       DropdownButtonFormField<String?>(
                         value: _outputVariable.unit,
                         decoration: const InputDecoration(
                           border: OutlineInputBorder(),
+                          labelText: "Derived unit",
                           contentPadding: EdgeInsets.symmetric(horizontal: 12, vertical: 0),
                         ),
                         items: [

lib/main.dart

@@ -16,26 +16,28 @@ void main() async {
   // Setup service locator and initialize the database
   setupLocator();
 
-  runApp(const MyApp());
+  var corpusFuture = loadCorpusFromDatabaseOrAssets();
+
+  runApp( MyApp(corpusFuture));
 }
 
 final GlobalKey<_CorpusLoaderState> corpusLoaderKey = GlobalKey<_CorpusLoaderState>();
 
 class MyApp extends StatelessWidget {
-  const MyApp({Key? key}) : super(key: key);
-
-  get corpusFuture => corpusLoaderKey.currentState?._corpusFuture;
+  final Future<Corpus> corpusFuture;
+  MyApp(this.corpusFuture, {Key? key}) : super(key: key);
 
   @override
   Widget build(BuildContext context) {
     return MaterialApp(
-      home: CorpusLoader(),
+      home: CorpusLoader(corpusFuture),
     );
   }
 }
 
 class CorpusLoader extends StatefulWidget {
-  CorpusLoader({Key? key}) : super(key: corpusLoaderKey);
+  final Future<Corpus> corpusFuture;
+  CorpusLoader(this.corpusFuture, {Key? key}) : super(key: corpusLoaderKey);
 
   @override
   State<CorpusLoader> createState() => _CorpusLoaderState();
@@ -44,11 +46,10 @@ class CorpusLoader extends StatefulWidget {
 class _CorpusLoaderState extends State<CorpusLoader> {
   late Future<Corpus> _corpusFuture;
 
-
   @override
   void initState() {
     super.initState();
-    _corpusFuture = loadCorpusFromDatabaseOrAssets();
+    _corpusFuture = widget.corpusFuture;
   }
 
   void _handleImport() {

screenshots.org

@@ -0,0 +1,2 @@
+[[file:evaluation-2.png]][[file:evaluation-with-expression.png]][[file:list-with-search.png]]
+[[file:sharing-formula.png]][[file:import-from-dart-literal.png]][[file:import-preview.png]]

test/app_test.dart

@@ -0,0 +1,44 @@
+import 'dart:async';
+
+import 'package:d4rt_formulas/defaults/default_corpus.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:d4rt_formulas/main.dart';
+import 'package:d4rt_formulas/corpus.dart';
+import 'package:d4rt_formulas/formula_models.dart';
+import 'package:d4rt_formulas/database/database_service.dart';
+import 'package:d4rt_formulas/service_locator.dart';
+import 'package:get_it/get_it.dart';
+
+void main() {
+
+  testWidgets('selects first formula and opens editor from AppBar', (WidgetTester tester) async {
+    // Build the app
+    var corpus = await createDefaultCorpus();
+    var corpusCompleter = Completer<Corpus>();
+    corpusCompleter.complete(corpus);
+    var app = MyApp(corpusCompleter.future);
+    await tester.pumpWidget(app);
+    await tester.pump();
+    await tester.pumpAndSettle(const Duration(seconds: 10));
+
+    // Verify FormulaList is shown
+    expect(find.byType(ListView), findsOneWidget);
+
+    // Find and tap the first formula in the list
+    final formulaTile = find.byType(ListTile).first;
+    expect(formulaTile, findsOneWidget);
+    await tester.tap(formulaTile);
+    await tester.pumpAndSettle();
+
+
+    // Find and tap the edit icon in the AppBar
+    final editIcon = find.byIcon(Icons.edit);
+    expect(editIcon, findsOneWidget);
+    await tester.tap(editIcon);
+    await tester.pumpAndSettle();
+
+    // Verify FormulaEditor is shown
+    expect(find.text('Edit Formula'), findsOneWidget);
+  });
+}