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vscode-react-native/src/test/resources

src/test/resources/reactNative022.ts

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1// Copyright (c) Microsoft Corporation. All rights reserved.
2// Licensed under the MIT license. See LICENSE file in the project root for details.
3
4import * as Q from "q";
5import * as path from "path";
6import * as assert from "assert";
7
8import {PromiseUtil} from "../../common/node/promise";
9
10import * as reactNative from "../../common/reactNative";
11import {ISpawnResult} from "../../common/node/childProcess";
12import {FileSystem} from "../../common/node/fileSystem";
13import {Package} from "../../common/node/package";
14import {Recording, Simulator} from "./processExecution/simulator";
15import {AdbSimulator} from "./simulators/adbSimulator";
16import {APKSerializer} from "./simulators/apkSerializer";
17
18const resourcesPath = path.join(__dirname, "../../../src/test/resources/");
19const sampleRNProjectPath = path.join(resourcesPath, "sampleReactNative022Project");
20const processExecutionsRecordingsPath = path.join(resourcesPath, "processExecutionsRecordings");
21
22export type IReactNative = reactNative.IReactNative;
23
24/* This class simulates calling the React-Native CLI v0.22. It currently supports react-native init
25 and react-native run-android. */
26export class ReactNative022 implements IReactNative {
27 private static ANDROID_APK_RELATIVE_PATH = "android/app/build/outputs/apk/app-debug.apk";
28
29 private simulator: Simulator = new Simulator({
30 beforeStart: () => this.readAndroidPackageName(), // 1. We read the package.json to verify this is a RN project
31 outputBased: [
32 {
33 eventPattern: /:app:assembleDebug/,
34 action: () => this.createAPK(), // 2. We compile the application.
35 },
36 {
37 eventPattern: /Installed on [0-9]+ devices*\./,
38 action: () => this.installAppInAllDevices(), // 3. We install it on all available devices.
39 },
40 ],
41 beforeSuccess: (stdout: string, stderr: string) => // 4. If we didn't had any errors after starting to launch the app,
42 this.launchApp(stdout, stderr), // it means we were succesful
43 });
44
45 private recording: Recording;
46
47 private androidPackageName: string;
48 private projectRoot: string;
49 private androidAPKPath: string;
50
51 constructor(private adb: AdbSimulator, private fileSystem: FileSystem) {
52 assert(this.adb, "adb shouldn't be null");
53 assert(this.fileSystem, "fileSystem shouldn't be null");
54 }
55
56 public loadRecordingFromName(recordingName: string): Q.Promise<void> {
57 return this.loadRecordingFromFile(path.join(processExecutionsRecordingsPath, `${recordingName}.json`));
58 }
59
60 public loadRecordingFromFile(recordingPath: string): Q.Promise<void> {
61 return Q({})
62 .then(() => {
63 return new FileSystem().readFile(recordingPath);
64 }).then(fileContents => {
65 this.loadRecording(JSON.parse(fileContents));
66 });
67 }
68
69 public loadRecording(recording: Recording): void {
70 assert(recording, "recording shouldn't be null");
71 this.recording = recording;
72 }
73
74 public createProject(projectRoot: string, projectName: string): Q.Promise<void> {
75 return Q({})
76 .then(() => {
77 this.fileSystem.makeDirectoryRecursiveSync(projectRoot);
78 return this.readDefaultProjectFile("package.json");
79 }).then(defaultContents => {
80 const reactNativeConfiguration = JSON.parse(defaultContents);
81 reactNativeConfiguration.name = projectName;
82 const reactNativeConfigurationFormatted = JSON.stringify(reactNativeConfiguration);
83 return this.fileSystem.writeFile(this.getPackageJsonPath(projectRoot), reactNativeConfigurationFormatted);
84 }).then(() => {
85 return this.fileSystem.mkDir(this.getAndroidProjectPath(projectRoot));
86 });
87 }
88
89 public runAndroid(projectRoot: string): ISpawnResult {
90 this.projectRoot = projectRoot;
91 this.simulator.simulate(this.recording).done();
92 return this.simulator.spawn();
93 }
94
95 private getAndroidProjectPath(projectRoot = this.projectRoot): string {
96 return path.join(projectRoot, "android");
97 }
98
99 private getPackageJsonPath(projectRoot: string): string {
100 return new Package(projectRoot, { fileSystem: this.fileSystem }).informationJsonFilePath();
101 }
102
103 private readAndroidPackageName(): Q.Promise<void> {
104 return new Package(this.projectRoot, { fileSystem: this.fileSystem }).name().then(name => {
105 this.androidPackageName = `com.${name.toLowerCase()}`;
106 });
107 }
108
109 private createAPK(): Q.Promise<void> {
110 return this.isAndroidProjectPresent().then(isPresent => {
111 if (!isPresent) {
112 return Q.reject<void>(new Error("The recording expects the Android project to be present, but it's not"));
113 }
114 }).then(() => {
115 this.androidAPKPath = path.join(this.projectRoot, ReactNative022.ANDROID_APK_RELATIVE_PATH);
116 return new APKSerializer(this.fileSystem).writeApk(this.androidAPKPath, { packageName: this.androidPackageName });
117 });
118 }
119
120 private isAndroidProjectPresent(): Q.Promise<boolean> {
121 // TODO: Make more checks as neccesary for the tests
122 return this.fileSystem.directoryExists(this.getAndroidProjectPath());
123 }
124
125 private installAppInAllDevices(): Q.Promise<void> {
126 return new PromiseUtil().reduce(this.adb.getConnectedDevices(), device => this.installAppInDevice(device.id));
127 }
128
129 private installAppInDevice(deviceId: string): Q.Promise<void> {
130 return this.adb.isDeviceOnline(deviceId).then(isOnline => {
131 if (isOnline) {
132 return this.adb.installApp(this.androidAPKPath, deviceId);
133 } else {
134 // TODO: Figure out what's the right thing to do here, if we ever need this for the tests
135 }
136 });
137 }
138
139 private launchApp(stdout: string, stderr: string): Q.Promise<void> {
140 /*
141 Sample output we want to accept:
142 BUILD SUCCESSFUL
143
144 Total time: 9.052 secs
145 Starting the app (C:\Program Files (x86)\Android\android-sdk/platform-tools/adb shell am start -n com.sampleapplication/.MainActivity)...
146 Starting: Intent { cmp=com.sampleapplication/.MainActivity }
147
148
149 Sample output we don't to accept:
150 BUILD SUCCESSFUL
151
152 Total time: 9.052 secs
153 Starting the app (C:\Program Files (x86)\Android\android-sdk/platform-tools/adb shell am start -n com.sampleapplication/.MainActivity)...
154 Starting: Intent { cmp=com.sampleapplication/.MainActivity }
155 Error: some error happened
156 **/
157 const succesfulOutputEnd = `Starting the app \\(.*adb shell am start -n ([^ /]+)\/\\.MainActivity\\)\\.\\.\\.\\s+`
158 + `Starting: Intent { cmp=([^ /]+)\/\\.MainActivity }\\s+$`;
159 const matches = stdout.match(new RegExp(succesfulOutputEnd));
160 if (matches) {
161 if (matches.length === 3 && matches[1] === this.androidPackageName && matches[2] === this.androidPackageName) {
162 return this.adb.launchApp(this.projectRoot, this.androidPackageName);
163 } else {
164 return Q.reject<void>(new Error("There was an error while trying to match the Starting the app messages."
165 + "Expected to match the pattern and recognize the expected android package name, but it failed."
166 + `Expected android package name: ${this.androidPackageName}. Actual matches: ${JSON.stringify(matches)}`));
167 }
168 } else {
169 // The record doesn't indicate that the app was launched, so we don't do anything
170 }
171 }
172
173 private readDefaultProjectFile(relativeFilePath: string): Q.Promise<string> {
174 const realFileSystem = new FileSystem(); // We always use the real file system (not the mock one) to read the sample project
175 return realFileSystem.readFile(path.join(sampleRNProjectPath, relativeFilePath));
176 }
177}
178