mirror of
https://github.com/flutter/flutter
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189 lines
7.3 KiB
Dart
189 lines
7.3 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 'dart:convert' show json;
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import 'package:file/memory.dart';
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import 'package:flutter_tools/src/base/fingerprint.dart';
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import 'package:flutter_tools/src/base/logger.dart';
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import 'package:flutter_tools/src/base/utils.dart';
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import '../../src/common.dart';
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void main() {
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group('Fingerprinter', () {
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MemoryFileSystem fileSystem;
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setUp(() {
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fileSystem = MemoryFileSystem.test();
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});
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testWithoutContext('creates fingerprint with specified properties and files', () {
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fileSystem.file('a.dart').createSync();
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final Fingerprinter fingerprinter = Fingerprinter(
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fingerprintPath: 'out.fingerprint',
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paths: <String>['a.dart'],
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fileSystem: fileSystem,
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logger: BufferLogger.test(),
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);
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final Fingerprint fingerprint = fingerprinter.buildFingerprint();
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expect(fingerprint, Fingerprint.fromBuildInputs(const <String>['a.dart'], fileSystem));
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});
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testWithoutContext('creates fingerprint with file checksums', () {
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fileSystem.file('a.dart').createSync();
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final Fingerprinter fingerprinter = Fingerprinter(
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fingerprintPath: 'out.fingerprint',
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paths: <String>['a.dart'],
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fileSystem: fileSystem,
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logger: BufferLogger.test(),
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);
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final Fingerprint fingerprint = fingerprinter.buildFingerprint();
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expect(fingerprint, Fingerprint.fromBuildInputs(const <String>['a.dart'], fileSystem));
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});
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testWithoutContext('fingerprint does not match if not present', () {
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fileSystem.file('a.dart').createSync();
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fileSystem.file('b.dart').createSync();
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final Fingerprinter fingerprinter = Fingerprinter(
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fingerprintPath: 'out.fingerprint',
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paths: <String>['a.dart', 'b.dart'],
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fileSystem: fileSystem,
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logger: BufferLogger.test(),
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);
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expect(fingerprinter.doesFingerprintMatch(), isFalse);
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});
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testWithoutContext('fingerprint does match if identical', () {
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fileSystem.file('a.dart').createSync();
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fileSystem.file('b.dart').createSync();
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final Fingerprinter fingerprinter = Fingerprinter(
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fingerprintPath: 'out.fingerprint',
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paths: <String>['a.dart', 'b.dart'],
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fileSystem: fileSystem,
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logger: BufferLogger.test(),
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);
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fingerprinter.writeFingerprint();
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expect(fingerprinter.doesFingerprintMatch(), isTrue);
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});
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testWithoutContext('fails to write fingerprint if inputs are missing', () {
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final Fingerprinter fingerprinter = Fingerprinter(
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fingerprintPath: 'out.fingerprint',
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paths: <String>['a.dart'],
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fileSystem: fileSystem,
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logger: BufferLogger.test(),
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);
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fingerprinter.writeFingerprint();
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expect(fileSystem.file('out.fingerprint').existsSync(), isFalse);
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});
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group('Fingerprint', () {
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group('fromBuildInputs', () {
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MemoryFileSystem fileSystem;
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setUp(() {
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fileSystem = MemoryFileSystem.test();
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});
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testWithoutContext('throws if any input file does not exist', () {
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fileSystem.file('a.dart').createSync();
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expect(
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() => Fingerprint.fromBuildInputs(const <String>['a.dart', 'b.dart'], fileSystem),
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throwsException,
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);
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});
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testWithoutContext('populates checksums for valid files', () {
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fileSystem.file('a.dart').writeAsStringSync('This is a');
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fileSystem.file('b.dart').writeAsStringSync('This is b');
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final Fingerprint fingerprint = Fingerprint.fromBuildInputs(const <String>['a.dart', 'b.dart'], fileSystem);
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final Map<String, dynamic> jsonObject = castStringKeyedMap(json.decode(fingerprint.toJson()));
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expect(jsonObject['files'], hasLength(2));
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expect(jsonObject['files']['a.dart'], '8a21a15fad560b799f6731d436c1b698');
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expect(jsonObject['files']['b.dart'], '6f144e08b58cd0925328610fad7ac07c');
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});
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});
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group('fromJson', () {
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testWithoutContext('throws if JSON is invalid', () {
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expect(() => Fingerprint.fromJson('<xml></xml>'), throwsA(anything));
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});
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testWithoutContext('creates fingerprint from valid JSON', () {
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final String jsonString = json.encode(<String, dynamic>{
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'files': <String, dynamic>{
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'a.dart': '8a21a15fad560b799f6731d436c1b698',
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'b.dart': '6f144e08b58cd0925328610fad7ac07c',
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},
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});
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final Fingerprint fingerprint = Fingerprint.fromJson(jsonString);
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final Map<String, dynamic> content = castStringKeyedMap(json.decode(fingerprint.toJson()));
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expect(content, hasLength(1));
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expect(content['files'], hasLength(2));
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expect(content['files']['a.dart'], '8a21a15fad560b799f6731d436c1b698');
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expect(content['files']['b.dart'], '6f144e08b58cd0925328610fad7ac07c');
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});
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testWithoutContext('treats missing properties and files entries as if empty', () {
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final String jsonString = json.encode(<String, dynamic>{});
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expect(Fingerprint.fromJson(jsonString), Fingerprint.fromBuildInputs(const <String>[], fileSystem));
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});
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});
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group('operator ==', () {
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testWithoutContext('reports not equal if file checksums do not match', () {
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final Map<String, dynamic> a = <String, dynamic>{
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'files': <String, dynamic>{
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'a.dart': '8a21a15fad560b799f6731d436c1b698',
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'b.dart': '6f144e08b58cd0925328610fad7ac07c',
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},
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};
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final Map<String, dynamic> b = Map<String, dynamic>.of(a);
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b['files'] = <String, dynamic>{
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'a.dart': '8a21a15fad560b799f6731d436c1b698',
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'b.dart': '6f144e08b58cd0925328610fad7ac07d',
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};
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expect(Fingerprint.fromJson(json.encode(a)) == Fingerprint.fromJson(json.encode(b)), isFalse);
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});
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testWithoutContext('reports not equal if file paths do not match', () {
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final Map<String, dynamic> a = <String, dynamic>{
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'files': <String, dynamic>{
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'a.dart': '8a21a15fad560b799f6731d436c1b698',
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'b.dart': '6f144e08b58cd0925328610fad7ac07c',
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},
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};
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final Map<String, dynamic> b = Map<String, dynamic>.of(a);
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b['files'] = <String, dynamic>{
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'a.dart': '8a21a15fad560b799f6731d436c1b698',
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'c.dart': '6f144e08b58cd0925328610fad7ac07d',
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};
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expect(Fingerprint.fromJson(json.encode(a)) == Fingerprint.fromJson(json.encode(b)), isFalse);
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});
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testWithoutContext('reports equal if properties and file checksums match', () {
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final Map<String, dynamic> a = <String, dynamic>{
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'files': <String, dynamic>{
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'a.dart': '8a21a15fad560b799f6731d436c1b698',
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'b.dart': '6f144e08b58cd0925328610fad7ac07c',
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},
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};
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expect(Fingerprint.fromJson(json.encode(a)) == Fingerprint.fromJson(json.encode(a)), isTrue);
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});
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});
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group('hashCode', () {
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testWithoutContext('is consistent with equals, even if map entries are reordered', () {
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final Fingerprint a = Fingerprint.fromJson('{"properties":{"a":"A","b":"B"},"files":{}}');
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final Fingerprint b = Fingerprint.fromJson('{"properties":{"b":"B","a":"A"},"files":{}}');
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expect(a, b);
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expect(a.hashCode, b.hashCode);
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});
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});
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});
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});
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}
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