86 lines
2 KiB
Dart
86 lines
2 KiB
Dart
// Copyright 2014 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import 'package:fake_async/fake_async.dart';
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import 'package:flutter/foundation.dart';
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import 'package:flutter_test/flutter_test.dart';
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import 'capture_output.dart';
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void main() {
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test('debugPrint', () {
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expect(
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captureOutput(() {
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debugPrintSynchronously('Hello, world');
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}),
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equals(<String>['Hello, world']),
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);
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expect(
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captureOutput(() {
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debugPrintSynchronously('Hello, world', wrapWidth: 10);
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}),
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equals(<String>['Hello,\nworld']),
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);
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for (var i = 0; i < 14; ++i) {
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expect(
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captureOutput(() {
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debugPrintSynchronously('Hello, world', wrapWidth: i);
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}),
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equals(<String>['Hello,\nworld']),
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);
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}
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expect(
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captureOutput(() {
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debugPrintThrottled('Hello, world');
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}),
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equals(<String>['Hello, world']),
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);
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expect(
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captureOutput(() {
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debugPrintThrottled('Hello, world', wrapWidth: 10);
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}),
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equals(<String>['Hello,', 'world']),
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);
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});
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test('debugPrint throttling', () {
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FakeAsync().run((FakeAsync async) {
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List<String> log = captureOutput(() {
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debugPrintThrottled('${'A' * (22 * 1024)}\nB');
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});
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expect(log.length, 1);
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async.elapse(const Duration(seconds: 2));
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expect(log.length, 2);
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log = captureOutput(() {
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debugPrintThrottled('C' * (22 * 1024));
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debugPrintThrottled('D');
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});
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expect(log.length, 1);
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async.elapse(const Duration(seconds: 2));
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expect(log.length, 2);
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});
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});
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test('debugPrint can print null', () {
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expect(
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captureOutput(() {
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debugPrintThrottled(null);
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}),
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equals(<String>['null']),
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);
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expect(
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captureOutput(() {
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debugPrintThrottled(null, wrapWidth: 80);
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}),
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equals(<String>['null']),
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);
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});
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}
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