historylist test

test/widget_tests/history_list_test.dart

@@ -0,0 +1,102 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:intl/date_symbol_data_local.dart';
+import 'package:intl/intl.dart';
+import 'package:smoke_cess_app/widgets/entry_detail_widget.dart';
+import 'package:smoke_cess_app/widgets/history_list_widget.dart';
+
+void main() {
+  group('HistoryList', () {
+    initializeDateFormatting('de');
+    final List<String> history = ['1', '2', '3'];
+    dateSelector(String p0) => DateTime.now();
+    entryDataSelector(String p0) => p0;
+
+    testWidgets('should produce #(history.length) EntryDetail Widgets',
+        (widgetTester) async {
+      await widgetTester.pumpWidget(WrappedHistoryList(
+          history: history,
+          dateSelector: dateSelector,
+          entryDataSelector: entryDataSelector));
+      final widgetFinder = find.byType(EntryDetail);
+      final dateFinder =
+          find.text(DateFormat.MMMd('de').format(DateTime.now()));
+      //HistoryList uses Icons.circle as default if there is no IconData provided
+      final iconFinder = find.byIcon(Icons.circle);
+      expect(widgetFinder, findsNWidgets(history.length));
+      expect(dateFinder, findsNWidgets(history.length));
+      expect(iconFinder, findsNWidgets(history.length));
+    });
+
+    testWidgets(
+        'should render correct icon if specified with icon selection function',
+        (widgetTester) async {
+      IconData iconDataSelector(String p0) => Icons.email;
+
+      await widgetTester.pumpWidget(WrappedHistoryList(
+        history: history,
+        dateSelector: dateSelector,
+        entryDataSelector: entryDataSelector,
+        iconDataSelector: iconDataSelector,
+      ));
+      final circleIconFinder = find.byIcon(Icons.circle);
+      final correctIconFinder = find.byIcon(Icons.email);
+
+      expect(circleIconFinder, findsNothing);
+      expect(correctIconFinder, findsNWidgets(history.length));
+    });
+
+    testWidgets('icon field should overwrite iconSelector',
+        (widgetTester) async {
+      const IconData icon = Icons.abc;
+      IconData iconDataSelector(String p0) => Icons.email;
+      await widgetTester.pumpWidget(WrappedHistoryList(
+        history: history,
+        dateSelector: dateSelector,
+        entryDataSelector: entryDataSelector,
+        iconDataSelector: iconDataSelector,
+        icon: Icons.abc,
+      ));
+      final circleIconFinder = find.byIcon(Icons.circle);
+      final emailIconFinder = find.byIcon(Icons.email);
+      final correctIconFinder = find.byIcon(icon);
+
+      expect(circleIconFinder, findsNothing);
+      expect(emailIconFinder, findsNothing);
+      expect(correctIconFinder, findsNWidgets(history.length));
+    });
+  });
+}
+
+class WrappedHistoryList<T> extends StatelessWidget {
+  final List<T> history;
+  final DateTime Function(T) dateSelector;
+  final String Function(T) entryDataSelector;
+  final IconData Function(T)? iconDataSelector;
+  final String Function(T)? entryCommentSelector;
+  final IconData? icon;
+  const WrappedHistoryList(
+      {super.key,
+      required this.history,
+      required this.dateSelector,
+      required this.entryDataSelector,
+      this.iconDataSelector,
+      this.icon,
+      this.entryCommentSelector});
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+        home: Scaffold(
+            body: Column(children: [
+      HistoryList<T>(
+        history: history,
+        dateSelector: dateSelector,
+        entryDataSelector: entryDataSelector,
+        icon: icon,
+        iconDataSelector: iconDataSelector,
+        entryCommentSelector: entryCommentSelector,
+      )
+    ])));
+  }
+}