Feature/widget testing (#8)

* Configured iOS Build
* Created ProgressListTile widget
* Created MaterialTesterWidget
* Created String Methods for Testing in ProgressListTile
* Created ProgressListTileStrings class
* Using Progress List Tile
* Created Progress List View
* Created Progress List Tile currently, future and past test.
* Created Progress List View one and five Time Progresses test.

Signed-off-by: Andreas Fahrecker <AndreasFahrecker@gmail.com>

test/MaterialTesterWidget.dart

@@ -0,0 +1,18 @@
+import 'package:flutter/material.dart';
+
+class MaterialTesterWidget extends StatelessWidget {
+  final Widget widget;
+
+  MaterialTesterWidget({
+    @required this.widget,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return MaterialApp(
+      home: Scaffold(
+        body: widget,
+      ),
+    );
+  }
+}

test/widget_test.dart

@@ -7,24 +7,124 @@
 
 import 'package:flutter/material.dart';
 import 'package:flutter_test/flutter_test.dart';
+import 'package:percent_indicator/linear_percent_indicator.dart';
+import 'package:time_progress_tracker/models/app_settings.dart';
+import 'package:time_progress_tracker/models/time_progress.dart';
+import 'package:time_progress_tracker/widgets/progress_list_view/progress_list_tile.dart';
+import 'package:time_progress_tracker/widgets/progress_list_view/progress_list_view.dart';
 
-import 'package:time_progress_calculator/main.dart';
+import 'MaterialTesterWidget.dart';
 
 void main() {
-  testWidgets('Counter increments smoke test', (WidgetTester tester) async {
-    // Build our app and trigger a frame.
-    await tester.pumpWidget(MyApp());
+  final AppSettings _defaultAppSettings = AppSettings.defaults();
+  final int _thisYear = DateTime.now().year;
+  final TimeProgress _activeProgress = TimeProgress(
+      "TestProgress", DateTime(_thisYear - 2), DateTime(_thisYear + 2));
 
-    // Verify that our counter starts at 0.
-    expect(find.text('0'), findsOneWidget);
-    expect(find.text('1'), findsNothing);
+  void _findStringOnce(String str) => expect(find.text(str), findsOneWidget);
 
-    // Tap the '+' icon and trigger a frame.
-    await tester.tap(find.byIcon(Icons.add));
-    await tester.pump();
+  testWidgets("Progress List Tile with currently active progress works",
+      (WidgetTester tester) async {
+    await tester.pumpWidget(MaterialTesterWidget(
+      widget: ProgressListTile(
+        timeProgress: _activeProgress,
+        doneColor: _defaultAppSettings.doneColor,
+        leftColor: _defaultAppSettings.leftColor,
+      ),
+    ));
 
-    // Verify that our counter has incremented.
-    expect(find.text('0'), findsNothing);
-    expect(find.text('1'), findsOneWidget);
+    _findStringOnce(_activeProgress.name);
+    _findStringOnce(ProgressListTileStrings.percentString(_activeProgress));
+
+    WidgetPredicate linearPercentPredicate = (Widget widget) =>
+        widget is LinearPercentIndicator &&
+        widget.percent == _activeProgress.percentDone() &&
+        widget.progressColor == _defaultAppSettings.doneColor &&
+        widget.backgroundColor == _defaultAppSettings.leftColor;
+    expect(find.byWidgetPredicate(linearPercentPredicate), findsOneWidget);
+  });
+
+  testWidgets("Progress List Tile with future progress works",
+      (WidgetTester tester) async {
+    TimeProgress futureProgress = TimeProgress(
+      "Test Progress",
+      DateTime(_thisYear + 1),
+      DateTime(_thisYear + 2),
+    );
+
+    await tester.pumpWidget(MaterialTesterWidget(
+      widget: ProgressListTile(
+        timeProgress: futureProgress,
+        doneColor: _defaultAppSettings.doneColor,
+        leftColor: _defaultAppSettings.leftColor,
+      ),
+    ));
+
+    _findStringOnce(futureProgress.name);
+    _findStringOnce(ProgressListTileStrings.startsInDaysString(futureProgress));
+  });
+
+  testWidgets("Progress List Tile with past progress works",
+      (WidgetTester tester) async {
+    TimeProgress pastProgress = TimeProgress(
+      "Test Progress",
+      DateTime(_thisYear - 2),
+      DateTime(_thisYear - 1),
+    );
+
+    await tester.pumpWidget(MaterialTesterWidget(
+      widget: ProgressListTile(
+        timeProgress: pastProgress,
+        doneColor: _defaultAppSettings.doneColor,
+        leftColor: _defaultAppSettings.leftColor,
+      ),
+    ));
+
+    _findStringOnce(pastProgress.name);
+    _findStringOnce(ProgressListTileStrings.endedDaysAgoString(pastProgress));
+  });
+
+  WidgetPredicate getProgressListTilePredicate(
+          TimeProgress tp, AppSettings as) =>
+      (Widget widget) =>
+          widget is ProgressListTile &&
+          widget.timeProgress == tp &&
+          widget.doneColor == as.doneColor &&
+          widget.leftColor == as.leftColor;
+
+  testWidgets("Progress List View displays one tile",
+      (WidgetTester tester) async {
+    await tester.pumpWidget(MaterialTesterWidget(
+      widget: ProgressListView(
+        timeProgressList: [_activeProgress],
+        doneColor: _defaultAppSettings.doneColor,
+        leftColor: _defaultAppSettings.leftColor,
+      ),
+    ));
+
+    _findStringOnce(_activeProgress.name);
+    expect(
+        find.byWidgetPredicate(
+            getProgressListTilePredicate(_activeProgress, _defaultAppSettings)),
+        findsOneWidget);
+  });
+
+  testWidgets("Progress List View displays file tiles",
+      (WidgetTester tester) async {
+    List<TimeProgress> tpList = [];
+    for (int i = 0; i < 5; i++) tpList.add(_activeProgress);
+    await tester.pumpWidget(MaterialTesterWidget(
+      widget: ProgressListView(
+        timeProgressList: tpList,
+        doneColor: _defaultAppSettings.doneColor,
+        leftColor: _defaultAppSettings.leftColor,
+      ),
+    ));
+
+    expect(find.text(_activeProgress.name), findsNWidgets(5));
+    expect(
+        find.byWidgetPredicate(
+            getProgressListTilePredicate(_activeProgress, _defaultAppSettings)),
+        findsNWidgets(5));
   });
 }