mirror of
https://github.com/flutter/flutter
synced 2024-10-13 11:42:54 +00:00
313 lines
9.2 KiB
Dart
313 lines
9.2 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:file/memory.dart';
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import 'package:flutter_tools/src/base/file_system.dart';
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import 'package:flutter_tools/src/dart/language_version.dart';
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import 'package:package_config/package_config.dart';
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import '../../src/common.dart';
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const String flutterRoot = '';
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const String testVersionString = '2.13';
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final LanguageVersion testCurrentLanguageVersion = LanguageVersion(2, 13);
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void setUpLanguageVersion(FileSystem fileSystem, [String version = testVersionString]) {
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fileSystem.file(fileSystem.path.join('bin', 'cache', 'dart-sdk', 'version'))
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..createSync(recursive: true)
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..writeAsStringSync(version);
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}
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void main() {
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testWithoutContext('detects language version in comment', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), LanguageVersion(2, 9));
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});
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testWithoutContext('detects language version in comment without spacing', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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// @dart=2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), LanguageVersion(2, 9));
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});
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testWithoutContext('detects language version in comment with more numbers', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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// @dart=2.12
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), nullSafeVersion);
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});
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testWithoutContext('does not detect invalid language version', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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// @dart
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('detects language version with leading whitespace', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), LanguageVersion(2, 9));
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});
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testWithoutContext('detects language version with tabs', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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//\t@dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), LanguageVersion(2, 9));
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});
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testWithoutContext('detects language version with tons of whitespace', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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// @dart = 2.23
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), LanguageVersion(2, 23));
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});
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testWithoutContext('does not detect language version in dartdoc', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not detect language version in block comment', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/*
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// @dart = 2.9
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*/
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not detect language version in nested block comment', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/*
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/*
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// @dart = 2.9
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*/
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*/
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('detects language version after nested block comment', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/* /*
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*/
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*/
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), LanguageVersion(2, 9));
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});
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testWithoutContext('does not crash with unbalanced opening block comments', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/*
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/*
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*/
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not crash with unbalanced closing block comments', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/*
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*/
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*/
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not detect language version in single line block comment', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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/* // @dart = 2.9 */
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not detect language version after import declaration', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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import 'dart:ui' as ui;
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not detect language version after part declaration', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem);
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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part of 'foo.dart';
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('does not detect language version after library declaration', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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library funstuff;
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// @dart = 2.9
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''');
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expect(determineLanguageVersion(file, null, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('looks up language version from package if not found in file', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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''');
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final Package package = Package(
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'foo',
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Uri.parse('file://foo/'),
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languageVersion: LanguageVersion(2, 7),
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);
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expect(determineLanguageVersion(file, package, flutterRoot), LanguageVersion(2, 7));
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});
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testWithoutContext('defaults to current version if package lookup returns null', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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final File file = fileSystem.file('example.dart')
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..writeAsStringSync('''
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// Some license
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''');
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final Package package = Package(
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'foo',
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Uri.parse('file://foo/'),
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languageVersion: null,
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);
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expect(determineLanguageVersion(file, package, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('Returns null safe error if reading the file throws a FileSystemException', () {
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final FileExceptionHandler handler = FileExceptionHandler();
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final FileSystem fileSystem = MemoryFileSystem.test(opHandle: handler.opHandle);
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setUpLanguageVersion(fileSystem);
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final File errorFile = fileSystem.file('foo');
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handler.addError(errorFile, FileSystemOp.read, const FileSystemException());
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final Package package = Package(
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'foo',
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Uri.parse('file://foo/'),
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languageVersion: LanguageVersion(2, 7),
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);
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expect(determineLanguageVersion(errorFile, package, flutterRoot), testCurrentLanguageVersion);
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});
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testWithoutContext('Can parse Dart language version with pre/post suffix', () {
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final FileSystem fileSystem = MemoryFileSystem.test();
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setUpLanguageVersion(fileSystem, '2.13.0-150.0.dev');
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expect(currentLanguageVersion(fileSystem, flutterRoot), LanguageVersion(2, 13));
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});
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}
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