Added more single topic widget tests

* Number Bar
* Number Slider
* Multi Color View
* Radial Gauge
* Single Color View

lib/widgets/nt_widgets/single_topic/number_bar.dart

@@ -90,11 +90,11 @@ class NumberBarModel extends NTWidgetModel {
   Map<String, dynamic> toJson() {
     return {
       ...super.toJson(),
-      'min_value': _minValue,
-      'max_value': _maxValue,
-      'divisions': _divisions,
-      'inverted': _inverted,
-      'orientation': _orientation,
+      'min_value': minValue,
+      'max_value': maxValue,
+      if (divisions != null) 'divisions': divisions,
+      'inverted': inverted,
+      'orientation': orientation,
     };
   }
 

lib/widgets/nt_widgets/single_topic/number_slider.dart

@@ -85,7 +85,9 @@ class NumberSliderModel extends NTWidgetModel {
         tryCast(jsonData['numOfTickMarks']) ??
         5;
 
-    _updateContinuously = tryCast(jsonData['update_continuously']) ?? false;
+    _updateContinuously = tryCast(jsonData['update_continuously']) ??
+        tryCast(jsonData['publish_all']) ??
+        false;
   }
 
   @override
@@ -95,7 +97,7 @@ class NumberSliderModel extends NTWidgetModel {
       'min_value': _minValue,
       'max_value': _maxValue,
       'divisions': _divisions,
-      'publish_all': _updateContinuously,
+      'update_continuously': _updateContinuously,
     };
   }
 

test/widgets/nt_widgets/single-topic/multi_color_view_test.dart

@@ -0,0 +1,215 @@
+import 'package:flutter/material.dart';
+
+import 'package:collection/collection.dart';
+import 'package:flutter_colorpicker/flutter_colorpicker.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:provider/provider.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+
+import 'package:elastic_dashboard/services/nt4_client.dart';
+import 'package:elastic_dashboard/services/nt_connection.dart';
+import 'package:elastic_dashboard/services/nt_widget_builder.dart';
+import 'package:elastic_dashboard/widgets/nt_widgets/nt_widget.dart';
+import 'package:elastic_dashboard/widgets/nt_widgets/single_topic/multi_color_view.dart';
+import '../../../test_util.dart';
+
+void main() {
+  TestWidgetsFlutterBinding.ensureInitialized();
+
+  final Map<String, dynamic> multiColorViewJson = {
+    'topic': 'Test/String Array',
+    'data_type': 'string[]',
+    'period': 0.100,
+  };
+
+  Finder findGradient(List<Color> expectedColors) =>
+      find.byWidgetPredicate((widget) =>
+          widget is Container &&
+          widget.decoration is BoxDecoration &&
+          (widget.decoration as BoxDecoration).gradient != null &&
+          (widget.decoration as BoxDecoration)
+              .gradient!
+              .colors
+              .equals(expectedColors));
+
+  late SharedPreferences preferences;
+  late NTConnection ntConnection;
+
+  setUp(() async {
+    SharedPreferences.setMockInitialValues({});
+    preferences = await SharedPreferences.getInstance();
+
+    ntConnection = createMockOnlineNT4(
+      virtualTopics: [
+        NT4Topic(
+          name: 'Test/String Array',
+          type: NT4TypeStr.kStringArr,
+          properties: {},
+        ),
+      ],
+      virtualValues: {
+        'Test/String Array': [
+          Colors.red.toHexString(includeHashSign: true),
+          Colors.orange.toHexString(includeHashSign: true),
+          Colors.yellow.toHexString(includeHashSign: true),
+          Colors.green.toHexString(includeHashSign: true),
+          Colors.blue.toHexString(includeHashSign: true),
+          Colors.purple.toHexString(includeHashSign: true),
+        ],
+      },
+    );
+  });
+
+  test('Multi color view from json', () {
+    NTWidgetModel multiColorViewModel = NTWidgetBuilder.buildNTModelFromJson(
+      ntConnection,
+      preferences,
+      'Multi Color View',
+      multiColorViewJson,
+    );
+
+    expect(multiColorViewModel.type, 'Multi Color View');
+    expect(multiColorViewModel.runtimeType, NTWidgetModel);
+    expect(
+        multiColorViewModel.getAvailableDisplayTypes(),
+        unorderedEquals([
+          'Multi Color View',
+          'Text Display',
+        ]));
+  });
+
+  test('Multi color view to json', () {
+    NTWidgetModel multiColorViewModel = NTWidgetModel.createDefault(
+      ntConnection: ntConnection,
+      preferences: preferences,
+      type: 'Multi Color View',
+      topic: 'Test/String Array',
+      dataType: 'string[]',
+      period: 0.100,
+    );
+
+    expect(multiColorViewModel.toJson(), multiColorViewJson);
+  });
+
+  testWidgets('Multi color view widget test full gradient',
+      (widgetTester) async {
+    FlutterError.onError = ignoreOverflowErrors;
+
+    NTWidgetModel multiColorViewModel = NTWidgetBuilder.buildNTModelFromJson(
+      ntConnection,
+      preferences,
+      'Multi Color View',
+      multiColorViewJson,
+    );
+
+    await widgetTester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ChangeNotifierProvider<NTWidgetModel>.value(
+            value: multiColorViewModel,
+            child: const MultiColorView(),
+          ),
+        ),
+      ),
+    );
+
+    await widgetTester.pumpAndSettle();
+
+    List<Color> expectedColors = [
+      Color(Colors.red.value),
+      Color(Colors.orange.value),
+      Color(Colors.yellow.value),
+      Color(Colors.green.value),
+      Color(Colors.blue.value),
+      Color(Colors.purple.value),
+    ];
+
+    expect(findGradient(expectedColors), findsOneWidget);
+  });
+
+  testWidgets('Multi color view widget test one color', (widgetTester) async {
+    FlutterError.onError = ignoreOverflowErrors;
+
+    NTWidgetModel multiColorViewModel = NTWidgetBuilder.buildNTModelFromJson(
+      createMockOnlineNT4(
+        virtualTopics: [
+          NT4Topic(
+            name: 'Test/String Array',
+            type: NT4TypeStr.kStringArr,
+            properties: {},
+          ),
+        ],
+        virtualValues: {
+          'Test/String Array': [
+            Colors.red.toHexString(includeHashSign: true),
+          ],
+        },
+      ),
+      preferences,
+      'Multi Color View',
+      multiColorViewJson,
+    );
+
+    await widgetTester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ChangeNotifierProvider<NTWidgetModel>.value(
+            value: multiColorViewModel,
+            child: const MultiColorView(),
+          ),
+        ),
+      ),
+    );
+
+    await widgetTester.pumpAndSettle();
+
+    expect(
+        findGradient([
+          Color(Colors.red.value),
+          Color(Colors.red.value),
+        ]),
+        findsOneWidget);
+  });
+
+  testWidgets('Multi color view widget test no colors', (widgetTester) async {
+    FlutterError.onError = ignoreOverflowErrors;
+
+    NTWidgetModel multiColorViewModel = NTWidgetBuilder.buildNTModelFromJson(
+      createMockOnlineNT4(
+        virtualTopics: [
+          NT4Topic(
+            name: 'Test/String Array',
+            type: NT4TypeStr.kStringArr,
+            properties: {},
+          ),
+        ],
+        virtualValues: {
+          'Test/String Array': [],
+        },
+      ),
+      preferences,
+      'Multi Color View',
+      multiColorViewJson,
+    );
+
+    await widgetTester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: ChangeNotifierProvider<NTWidgetModel>.value(
+            value: multiColorViewModel,
+            child: const MultiColorView(),
+          ),
+        ),
+      ),
+    );
+
+    await widgetTester.pumpAndSettle();
+
+    expect(
+        findGradient([
+          Color(Colors.transparent.value),
+          Color(Colors.transparent.value),
+        ]),
+        findsOneWidget);
+  });
+}