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samples/jsonexample/test/widget_tests_test.dart

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// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:jsonexample/dart_convert/converted_simple_object.dart';
import 'package:jsonexample/dart_convert/converted_complex_object.dart';
import 'package:jsonexample/widgets.dart';
void main() {
group('SimpleObjectView widget test', () {
testWidgets('Typical object is displayed correctly',
(WidgetTester tester) async {
final simpleObject = ConvertedSimpleObject(
aString: 'Blah, blah, blah',
anInt: 1,
aDouble: 1.0,
aListOfStrings: ['one', 'two', 'three'],
aListOfInts: [1, 2, 3],
aListOfDoubles: [1.0, 2.0, 3.0],
);
await tester.pumpWidget(
MaterialApp(
home: SimpleObjectView(simpleObject),
),
);
expect(find.text('"Blah, blah, blah"'), findsOneWidget);
expect(find.text('1'), findsOneWidget);
expect(find.text('1.0'), findsOneWidget);
expect(find.text('["one", "two", "three"]'), findsOneWidget);
expect(find.text('[1, 2, 3]'), findsOneWidget);
expect(find.text('[1.0, 2.0, 3.0]'), findsOneWidget);
});
testWidgets('Empty lists are displayed as brackets',
(WidgetTester tester) async {
final simpleObject = ConvertedSimpleObject(
aString: 'Blah, blah, blah',
anInt: 1,
aDouble: 1.0,
aListOfStrings: [],
aListOfInts: [],
aListOfDoubles: [],
);
await tester.pumpWidget(
MaterialApp(
home: SimpleObjectView(simpleObject),
),
);
expect(find.text('[]'), findsNWidgets(3));
});
testWidgets('Null values are displayed as NULL',
(WidgetTester tester) async {
final simpleObject = ConvertedSimpleObject(
aString: null,
anInt: null,
aDouble: null,
aListOfStrings: null,
aListOfInts: null,
aListOfDoubles: null,
);
await tester.pumpWidget(
MaterialApp(
home: SimpleObjectView(simpleObject),
),
);
expect(find.text('NULL'), findsNWidgets(6));
});
});
group('ComplexObjectView widget test', () {
testWidgets('Typical object is displayed correctly',
(WidgetTester tester) async {
final complexObject = ConvertedComplexObject(
aString: 'Blah, blah, blah',
anInt: 1,
aDouble: 1.0,
aListOfStrings: ['one', 'two', 'three'],
aListOfInts: [1, 2, 3],
aListOfDoubles: [1.0, 2.0, 3.0],
anObject: ConvertedSimpleObject(
aString: "Child 1",
anInt: 101,
aDouble: 101.0,
aListOfStrings: ['1011', '1012', '1013'],
aListOfInts: [1011, 1012, 1013],
aListOfDoubles: [1011.0, 1012.0, 1013.0],
),
aListOfObjects: [
ConvertedSimpleObject(
aString: "Child 2",
anInt: 102,
aDouble: 102.0,
aListOfStrings: ['1021', '1022', '1023'],
aListOfInts: [1021, 1022, 1023],
aListOfDoubles: [1021.0, 1022.0, 1023.0],
),
ConvertedSimpleObject(
aString: "Child 3",
anInt: 103,
aDouble: 103.0,
aListOfStrings: ['1031', '1032', '1033'],
aListOfInts: [1031, 1032, 1033],
aListOfDoubles: [1031.0, 1032.0, 1033.0],
),
ConvertedSimpleObject(
aString: "Child 4",
anInt: 104,
aDouble: 104.0,
aListOfStrings: ['1041', '1042', '1043'],
aListOfInts: [1041, 1042, 1043],
aListOfDoubles: [1041.0, 1042.0, 1043.0],
),
],
);
await tester.pumpWidget(
MaterialApp(
home: ComplexObjectView(complexObject),
),
);
expect(find.text('"Blah, blah, blah"'), findsOneWidget);
expect(find.text('1'), findsOneWidget);
expect(find.text('1.0'), findsOneWidget);
expect(find.text('["one", "two", "three"]'), findsOneWidget);
expect(find.text('[1, 2, 3]'), findsOneWidget);
expect(find.text('[1.0, 2.0, 3.0]'), findsOneWidget);
for (int i = 1; i <= 4; i++) {
expect(find.text('"Child $i"'), findsOneWidget);
expect(find.text('10$i'), findsOneWidget);
expect(find.text('10$i.0'), findsOneWidget);
expect(find.text('["10${i}1", "10${i}2", "10${i}3"]'), findsOneWidget);
expect(find.text('[10${i}1, 10${i}2, 10${i}3]'), findsOneWidget);
expect(find.text('[10${i}1.0, 10${i}2.0, 10${i}3.0]'), findsOneWidget);
}
});
testWidgets('Empty lists are displayed as brackets',
(WidgetTester tester) async {
final complexObject = ConvertedComplexObject(
aString: 'Blah, blah, blah',
anInt: 1,
aDouble: 1.0,
aListOfStrings: [],
aListOfInts: [],
aListOfDoubles: [],
anObject: ConvertedSimpleObject(
aString: "Child 1",
anInt: 101,
aDouble: 101.0,
aListOfStrings: ['1011', '1012', '1013'],
aListOfInts: [1011, 1012, 1013],
aListOfDoubles: [1011.0, 1012.0, 1013.0],
),
aListOfObjects: [],
);
await tester.pumpWidget(
MaterialApp(
home: ComplexObjectView(complexObject),
),
);
expect(find.text('[]'), findsNWidgets(4));
});
testWidgets('Null values are displayed as NULL',
(WidgetTester tester) async {
final complexObject = ConvertedComplexObject(
aString: null,
anInt: null,
aDouble: null,
aListOfStrings: null,
aListOfInts: null,
aListOfDoubles: null,
anObject: null,
aListOfObjects: null,
);
await tester.pumpWidget(
MaterialApp(
home: ComplexObjectView(complexObject),
),
);
expect(find.text('NULL'), findsNWidgets(8));
});
});
}