mirror of
https://github.com/flutter/flutter
synced 2024-10-13 19:52:53 +00:00
d927c93310
* enable lint unnecessary_new * fix tests * fix tests * fix tests
116 lines
4.2 KiB
Dart
116 lines
4.2 KiB
Dart
// Copyright 2018 The Chromium 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 'dart:async';
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import 'package:file/file.dart';
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import 'package:flutter_tools/src/base/file_system.dart';
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import 'package:flutter_tools/src/base/platform.dart';
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import 'package:vm_service_client/vm_service_client.dart';
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import '../src/common.dart';
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import 'test_data/basic_project.dart';
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import 'test_driver.dart';
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void main() {
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group('expression evaluation', () {
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Directory tempDir;
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final BasicProject _project = BasicProject();
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FlutterTestDriver _flutter;
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setUp(() async {
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tempDir = fs.systemTempDirectory.createTempSync('flutter_expression_test.');
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await _project.setUpIn(tempDir);
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_flutter = FlutterTestDriver(tempDir);
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});
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tearDown(() async {
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await _flutter.stop();
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tryToDelete(tempDir);
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});
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Future<VMIsolate> breakInBuildMethod(FlutterTestDriver flutter) async {
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return _flutter.breakAt(
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_project.buildMethodBreakpointFile,
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_project.buildMethodBreakpointLine);
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}
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Future<VMIsolate> breakInTopLevelFunction(FlutterTestDriver flutter) async {
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return _flutter.breakAt(
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_project.topLevelFunctionBreakpointFile,
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_project.topLevelFunctionBreakpointLine);
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}
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Future<void> evaluateTrivialExpressions() async {
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VMInstanceRef res;
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res = await _flutter.evaluateExpression('"test"');
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expect(res is VMStringInstanceRef && res.value == 'test', isTrue);
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res = await _flutter.evaluateExpression('1');
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expect(res is VMIntInstanceRef && res.value == 1, isTrue);
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res = await _flutter.evaluateExpression('true');
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expect(res is VMBoolInstanceRef && res.value == true, isTrue);
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}
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Future<void> evaluateComplexExpressions() async {
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final VMInstanceRef res = await _flutter.evaluateExpression('new DateTime.now().year');
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expect(res is VMIntInstanceRef && res.value == DateTime.now().year, isTrue);
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}
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Future<void> evaluateComplexReturningExpressions() async {
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final DateTime now = DateTime.now();
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final VMInstanceRef resp = await _flutter.evaluateExpression('new DateTime.now()');
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expect(resp.klass.name, equals('DateTime'));
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// Ensure we got a reasonable approximation. The more accurate we try to
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// make this, the more likely it'll fail due to differences in the time
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// in the remote VM and the local VM at the time the code runs.
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final VMStringInstanceRef res = await resp.evaluate(r'"$year-$month-$day"');
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expect(res.value,
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equals('${now.year}-${now.month}-${now.day}'));
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}
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test('can evaluate trivial expressions in top level function', () async {
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await _flutter.run(withDebugger: true);
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await breakInTopLevelFunction(_flutter);
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await evaluateTrivialExpressions();
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});
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test('can evaluate trivial expressions in build method', () async {
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await _flutter.run(withDebugger: true);
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await breakInBuildMethod(_flutter);
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await evaluateTrivialExpressions();
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});
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test('can evaluate complex expressions in top level function', () async {
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await _flutter.run(withDebugger: true);
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await breakInTopLevelFunction(_flutter);
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await evaluateComplexExpressions();
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});
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test('can evaluate complex expressions in build method', () async {
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await _flutter.run(withDebugger: true);
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await breakInBuildMethod(_flutter);
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await evaluateComplexExpressions();
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});
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test('can evaluate expressions returning complex objects in top level function', () async {
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await _flutter.run(withDebugger: true);
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await breakInTopLevelFunction(_flutter);
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await evaluateComplexReturningExpressions();
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});
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test('can evaluate expressions returning complex objects in build method', () async {
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await _flutter.run(withDebugger: true);
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await breakInBuildMethod(_flutter);
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await evaluateComplexReturningExpressions();
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});
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// TODO(dantup): Unskip after flutter-tester is fixed on Windows:
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// https://github.com/flutter/flutter/issues/17833.
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// https://github.com/flutter/flutter/issues/21348.
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}, timeout: const Timeout.factor(6), skip: platform.isWindows);
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}
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