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First step in eliminating code duplication between script snapshotting (in FLX build) and AOT, assembly AOT snapshotting.
290 lines
12 KiB
Dart
290 lines
12 KiB
Dart
// Copyright 2017 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 'dart:convert' show JSON;
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import 'package:file/memory.dart';
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import 'package:flutter_tools/src/base/build.dart';
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import 'package:flutter_tools/src/base/context.dart';
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import 'package:flutter_tools/src/base/file_system.dart';
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import 'package:flutter_tools/src/build_info.dart';
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import 'package:test/test.dart';
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import '../src/context.dart';
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class _FakeGenSnapshot implements GenSnapshot {
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_FakeGenSnapshot({
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this.succeed: true,
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this.snapshotPath: 'output.snapshot',
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this.snapshotContent: '',
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this.depfilePath: 'output.snapshot.d',
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this.depfileContent: 'output.snapshot.d : main.dart',
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});
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final bool succeed;
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final String snapshotPath;
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final String snapshotContent;
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final String depfilePath;
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final String depfileContent;
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int _callCount = 0;
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int get callCount => _callCount;
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@override
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Future<int> run({
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TargetPlatform targetPlatform,
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BuildMode buildMode,
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String packagesPath,
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String depfilePath,
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Iterable<String> additionalArgs,
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}) async {
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_callCount += 1;
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if (!succeed)
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return 1;
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await fs.file(snapshotPath).writeAsString(snapshotContent);
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await fs.file(depfilePath).writeAsString(depfileContent);
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return 0;
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}
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}
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void main() {
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group('Checksum', () {
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group('fromFiles', () {
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MemoryFileSystem fs;
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setUp(() {
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fs = new MemoryFileSystem();
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});
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testUsingContext('throws if any input file does not exist', () async {
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await fs.file('a.dart').create();
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expect(() => new Checksum.fromFiles(<String>['a.dart', 'b.dart'].toSet()), throwsA(anything));
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}, overrides: <Type, Generator>{ FileSystem: () => fs});
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testUsingContext('populates checksums for valid files', () async {
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await fs.file('a.dart').writeAsString('This is a');
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await fs.file('b.dart').writeAsString('This is b');
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final Checksum checksum = new Checksum.fromFiles(<String>['a.dart', 'b.dart'].toSet());
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final String json = checksum.toJson();
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expect(json, '{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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}, overrides: <Type, Generator>{ FileSystem: () => fs});
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});
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group('fromJson', () {
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test('throws if JSON is invalid', () async {
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expect(() => new Checksum.fromJson('<xml></xml>'), throwsA(anything));
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});
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test('populates checksums for valid JSON', () async {
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final String json = '{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}';
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final Checksum checksum = new Checksum.fromJson(json);
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expect(checksum.toJson(), '{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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});
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});
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group('operator ==', () {
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test('reports not equal if checksums do not match', () async {
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final Checksum a = new Checksum.fromJson('{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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final Checksum b = new Checksum.fromJson('{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07d"}');
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expect(a == b, isFalse);
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});
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test('reports not equal if keys do not match', () async {
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final Checksum a = new Checksum.fromJson('{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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final Checksum b = new Checksum.fromJson('{"a.dart":"8a21a15fad560b799f6731d436c1b698","c.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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expect(a == b, isFalse);
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});
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test('reports equal if all checksums match', () async {
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final Checksum a = new Checksum.fromJson('{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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final Checksum b = new Checksum.fromJson('{"a.dart":"8a21a15fad560b799f6731d436c1b698","b.dart":"6f144e08b58cd0925328610fad7ac07c"}');
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expect(a == b, isTrue);
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});
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});
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});
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group('readDepfile', () {
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MemoryFileSystem fs;
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setUp(() {
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fs = new MemoryFileSystem();
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});
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testUsingContext('returns one file if only one is listed', () async {
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await fs.file('a.d').writeAsString('snapshot.d: /foo/a.dart');
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expect(await readDepfile('a.d'), unorderedEquals(<String>['/foo/a.dart']));
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}, overrides: <Type, Generator>{ FileSystem: () => fs });
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testUsingContext('returns multiple files', () async {
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await fs.file('a.d').writeAsString('snapshot.d: /foo/a.dart /foo/b.dart');
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expect(await readDepfile('a.d'), unorderedEquals(<String>[
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'/foo/a.dart',
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'/foo/b.dart',
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]));
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}, overrides: <Type, Generator>{ FileSystem: () => fs});
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testUsingContext('trims extra spaces between files', () async {
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await fs.file('a.d').writeAsString('snapshot.d: /foo/a.dart /foo/b.dart /foo/c.dart');
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expect(await readDepfile('a.d'), unorderedEquals(<String>[
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'/foo/a.dart',
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'/foo/b.dart',
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'/foo/c.dart',
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]));
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}, overrides: <Type, Generator>{ FileSystem: () => fs });
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testUsingContext('returns files with spaces and backslashes', () async {
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await fs.file('a.d').writeAsString(r'snapshot.d: /foo/a\ a.dart /foo/b\\b.dart /foo/c\\ c.dart');
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expect(await readDepfile('a.d'), unorderedEquals(<String>[
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r'/foo/a a.dart',
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r'/foo/b\b.dart',
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r'/foo/c\ c.dart',
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]));
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}, overrides: <Type, Generator>{ FileSystem: () => fs });
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});
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group('Snapshotter', () {
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_FakeGenSnapshot genSnapshot;
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MemoryFileSystem fs;
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Snapshotter snapshotter;
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setUp(() {
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fs = new MemoryFileSystem();
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genSnapshot = new _FakeGenSnapshot();
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snapshotter = new Snapshotter();
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});
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testUsingContext('builds snapshot and checksums when no checksums are present', () async {
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await fs.file('main.dart').writeAsString('void main() {}');
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await fs.file('output.snapshot').create();
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await fs.file('output.snapshot.d').writeAsString('snapshot : main.dart');
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await snapshotter.buildScriptSnapshot(
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mainPath: 'main.dart',
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snapshotPath: 'output.snapshot',
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depfilePath: 'output.snapshot.d',
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packagesPath: '.packages',
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);
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expect(genSnapshot.callCount, 1);
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final Map<String, dynamic> json = JSON.decode(await fs.file('output.snapshot.d.checksums').readAsString());
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expect(json, hasLength(2));
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expect(json['main.dart'], '27f5ebf0f8c559b2af9419d190299a5e');
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expect(json['output.snapshot'], 'd41d8cd98f00b204e9800998ecf8427e');
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}, overrides: <Type, Generator>{
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FileSystem: () => fs,
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GenSnapshot: () => genSnapshot,
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});
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testUsingContext('builds snapshot and checksums when checksums differ', () async {
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await fs.file('main.dart').writeAsString('void main() {}');
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await fs.file('output.snapshot').create();
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await fs.file('output.snapshot.d').writeAsString('output.snapshot : main.dart');
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await fs.file('output.snapshot.d.checksums').writeAsString(JSON.encode(<String, dynamic>{
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'main.dart': '27f5ebf0f8c559b2af9419d190299a5e',
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'output.snapshot': 'deadbeef01234567890abcdef0123456',
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}));
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await snapshotter.buildScriptSnapshot(
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mainPath: 'main.dart',
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snapshotPath: 'output.snapshot',
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depfilePath: 'output.snapshot.d',
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packagesPath: '.packages',
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);
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expect(genSnapshot.callCount, 1);
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final Map<String, dynamic> json = JSON.decode(await fs.file('output.snapshot.d.checksums').readAsString());
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expect(json, hasLength(2));
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expect(json['main.dart'], '27f5ebf0f8c559b2af9419d190299a5e');
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expect(json['output.snapshot'], 'd41d8cd98f00b204e9800998ecf8427e');
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}, overrides: <Type, Generator>{
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FileSystem: () => fs,
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GenSnapshot: () => genSnapshot,
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});
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testUsingContext('builds snapshot and checksums when checksums match but previous snapshot not present', () async {
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await fs.file('main.dart').writeAsString('void main() {}');
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await fs.file('output.snapshot.d').writeAsString('output.snapshot : main.dart');
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await fs.file('output.snapshot.d.checksums').writeAsString(JSON.encode(<String, dynamic>{
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'main.dart': '27f5ebf0f8c559b2af9419d190299a5e',
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'output.snapshot': 'd41d8cd98f00b204e9800998ecf8427e',
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}));
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await snapshotter.buildScriptSnapshot(
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mainPath: 'main.dart',
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snapshotPath: 'output.snapshot',
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depfilePath: 'output.snapshot.d',
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packagesPath: '.packages',
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);
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expect(genSnapshot.callCount, 1);
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final Map<String, dynamic> json = JSON.decode(await fs.file('output.snapshot.d.checksums').readAsString());
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expect(json, hasLength(2));
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expect(json['main.dart'], '27f5ebf0f8c559b2af9419d190299a5e');
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expect(json['output.snapshot'], 'd41d8cd98f00b204e9800998ecf8427e');
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}, overrides: <Type, Generator>{
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FileSystem: () => fs,
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GenSnapshot: () => genSnapshot,
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});
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testUsingContext('builds snapshot and checksums when main entry point changes', () async {
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final _FakeGenSnapshot genSnapshot = new _FakeGenSnapshot(
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snapshotPath: 'output.snapshot',
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depfilePath: 'output.snapshot.d',
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depfileContent: 'output.snapshot : other.dart',
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);
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context.setVariable(GenSnapshot, genSnapshot);
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await fs.file('main.dart').writeAsString('void main() {}');
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await fs.file('other.dart').writeAsString('void main() { print("Kanpai ima kimi wa jinsei no ookina ookina butai ni tachi"); }');
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await fs.file('output.snapshot.d').writeAsString('output.snapshot : main.dart');
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await fs.file('output.snapshot.d.checksums').writeAsString(JSON.encode(<String, dynamic>{
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'main.dart': '27f5ebf0f8c559b2af9419d190299a5e',
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'output.snapshot': 'd41d8cd98f00b204e9800998ecf8427e',
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}));
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await snapshotter.buildScriptSnapshot(
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mainPath: 'other.dart',
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snapshotPath: 'output.snapshot',
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depfilePath: 'output.snapshot.d',
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packagesPath: '.packages',
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);
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expect(genSnapshot.callCount, 1);
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final Map<String, dynamic> json = JSON.decode(await fs.file('output.snapshot.d.checksums').readAsString());
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expect(json, hasLength(2));
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expect(json['other.dart'], '3238d0ae341339b1731d3c2e195ad177');
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expect(json['output.snapshot'], 'd41d8cd98f00b204e9800998ecf8427e');
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}, overrides: <Type, Generator>{
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FileSystem: () => fs,
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});
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testUsingContext('skips snapshot when checksums match and previous snapshot is present', () async {
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await fs.file('main.dart').writeAsString('void main() {}');
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await fs.file('output.snapshot').create();
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await fs.file('output.snapshot.d').writeAsString('output.snapshot : main.dart');
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await fs.file('output.snapshot.d.checksums').writeAsString(JSON.encode(<String, dynamic>{
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'main.dart': '27f5ebf0f8c559b2af9419d190299a5e',
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'output.snapshot': 'd41d8cd98f00b204e9800998ecf8427e',
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}));
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await snapshotter.buildScriptSnapshot(
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mainPath: 'main.dart',
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snapshotPath: 'output.snapshot',
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depfilePath: 'output.snapshot.d',
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packagesPath: '.packages',
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);
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expect(genSnapshot.callCount, 0);
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final Map<String, dynamic> json = JSON.decode(await fs.file('output.snapshot.d.checksums').readAsString());
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expect(json, hasLength(2));
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expect(json['main.dart'], '27f5ebf0f8c559b2af9419d190299a5e');
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expect(json['output.snapshot'], 'd41d8cd98f00b204e9800998ecf8427e');
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}, overrides: <Type, Generator>{
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FileSystem: () => fs,
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GenSnapshot: () => genSnapshot,
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});
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});
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}
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