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annotate hg-web/e2e/app_e2e_test.js @ 224:3007ef5fc0ed hg-web

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[hg-web] Simplify visuals and preview static files
author MrJuneJune <me@mrjunejune.com>
date Sun, 02 Aug 2026 13:51:11 -0700
parents 0e7b9464248d
children 70de0c80d093
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1 const assert = require('node:assert/strict');
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2 const fs = require('node:fs');
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3 const os = require('node:os');
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4 const path = require('node:path');
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5 const { spawn, spawnSync } = require('node:child_process');
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6 const { chromium } = require('playwright-core');
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7
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8 const BASE_URL = 'http://127.0.0.1:6970';
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9 const RUNFILES = process.env.JS_BINARY__RUNFILES;
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10 const WORKSPACE = process.env.JS_BINARY__WORKSPACE;
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11
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12 function run(command, args, options = {}) {
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13 const result = spawnSync(command, args, {
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14 encoding: 'utf8',
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15 ...options,
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16 });
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17 if (result.status !== 0) {
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18 throw new Error(
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19 `${command} ${args.join(' ')} failed\n${result.stdout || ''}${result.stderr || ''}`,
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20 );
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21 }
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22 return result.stdout.trim();
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23 }
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24
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25 function mercurialEnvironment(home) {
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26 return {
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27 ...process.env,
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28 HGPLAIN: '1',
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29 HGRCPATH: '',
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30 HOME: home,
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31 };
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32 }
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33
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34 function stopProcess(child) {
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35 if (!child || child.exitCode !== null) return Promise.resolve();
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36 child.kill('SIGTERM');
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37 return new Promise(resolve => {
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38 const timer = setTimeout(() => {
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39 if (child.exitCode === null) child.kill('SIGKILL');
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40 }, 3000);
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41 child.once('exit', () => {
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42 clearTimeout(timer);
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43 resolve();
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44 });
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45 });
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46 }
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47
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48 async function waitForHttp(url, child, logs) {
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49 const deadline = Date.now() + 15000;
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50 while (Date.now() < deadline) {
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51 if (child.exitCode !== null) {
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52 throw new Error(`Server exited early with ${child.exitCode}\n${logs.join('')}`);
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53 }
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54 try {
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55 const response = await fetch(url);
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56 if (response.ok) return;
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57 } catch {
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58 // Keep waiting for startup.
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59 }
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60 await new Promise(resolve => setTimeout(resolve, 100));
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61 }
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62 throw new Error(`Timed out waiting for ${url}\n${logs.join('')}`);
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63 }
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64
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65 function createFixtureRepository(root) {
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66 const options = { env: mercurialEnvironment(root) };
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67 run('hg', ['init', root], options);
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68 fs.mkdirSync(path.join(root, 'docs'), { recursive: true });
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69 fs.mkdirSync(path.join(root, 'src'), { recursive: true });
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70 fs.writeFileSync(
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71 path.join(root, 'README.md'),
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72 '# Fixture Repository\n\n<script>window.__hgWebXss = true</script>\n',
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73 );
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74 fs.writeFileSync(path.join(root, 'docs', 'README.md'), '# Documentation\n\nNested README.\n');
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75 fs.writeFileSync(path.join(root, 'src', 'main.c'), 'int main(void) { return 0; }\n');
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76 fs.writeFileSync(
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77 path.join(root, 'pixel.png'),
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78 Buffer.from(
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79 'iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mP8/x8AAusB9Wl2nWQAAAAASUVORK5CYII=',
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80 'base64',
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81 ),
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82 );
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83 fs.writeFileSync(path.join(root, 'movie.mp4'), Buffer.from('00000018667479706d703432', 'hex'));
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84 fs.writeFileSync(path.join(root, 'sound.mp3'), Buffer.from('ID3'));
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85 fs.writeFileSync(path.join(root, 'document.pdf'), Buffer.from('%PDF-1.4\n%%EOF\n'));
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86 fs.writeFileSync(path.join(root, 'archive.bin'), Buffer.from([0, 1, 2, 3]));
223
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87 run('hg', ['--repository', root, 'add'], options);
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88 run('hg', ['--repository', root, 'commit', '-u', 'Test User <[email protected]>', '-m', 'Initial fixture'], options);
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89 const firstNode = run('hg', ['--repository', root, 'log', '-r', '.', '-T', '{node}'], options);
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90
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91 fs.appendFileSync(path.join(root, 'README.md'), '\nSecond revision.\n');
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92 fs.writeFileSync(path.join(root, 'new-file.txt'), 'new file\n');
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93 run('hg', ['add', 'new-file.txt'], { ...options, cwd: root });
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94 run('hg', ['--repository', root, 'commit', '-u', 'Test User <[email protected]>', '-m', 'Update fixture'], options);
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95 const tipNode = run('hg', ['--repository', root, 'log', '-r', '.', '-T', '{node}'], options);
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96 return { firstNode, tipNode };
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97 }
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98
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99 async function assertJson(pathname, status = 200) {
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100 const response = await fetch(`${BASE_URL}${pathname}`);
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101 const body = await response.text();
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102 assert.equal(response.status, status, `${pathname} status: ${body}`);
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103 return JSON.parse(body);
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104 }
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105
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106 async function assertPageHasNoBrowserErrors(browser, pathname, assertion) {
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107 const page = await browser.newPage();
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108 const errors = [];
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109 page.on('pageerror', error => errors.push(`pageerror: ${error.stack || error.message}`));
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110 page.on('console', message => {
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111 if (message.type() === 'error') errors.push(`console: ${message.text()}`);
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112 });
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113 page.on('requestfailed', request => {
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114 errors.push(`requestfailed: ${request.url()} ${request.failure()?.errorText || ''}`);
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115 });
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116 page.on('response', response => {
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117 if (response.status() >= 400) {
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118 errors.push(`response: ${response.status()} ${response.url()}`);
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119 }
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120 });
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121
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122 const response = await page.goto(`${BASE_URL}${pathname}`, { waitUntil: 'networkidle' });
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123 assert.equal(response.status(), 200, `${pathname} document status`);
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124 await assertion(page);
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125 if (errors.length > 0) {
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126 throw new Error(`${pathname} browser errors\n${errors.join('\n')}`);
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127 }
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128 await page.close();
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129 }
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130
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131 async function main() {
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132 assert.ok(RUNFILES, 'rules_js runfiles path is required');
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133 assert.ok(WORKSPACE, 'rules_js workspace name is required');
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134
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135 const fixtureRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'hg-web-e2e-'));
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136 const appLogs = [];
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137 const hgLogs = [];
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138 let hgServer;
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139 let appServer;
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140 let browser;
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141
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142 try {
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143 const { firstNode, tipNode } = createFixtureRepository(fixtureRoot);
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144 const runfilesWorkspace = path.join(RUNFILES, WORKSPACE);
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145 const serverBinary = path.join(runfilesWorkspace, 'hg-web', 'hg_web_server');
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146 const chromiumPath = path.resolve(process.env.CHROMIUM_PATH);
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147
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148 assert.ok(fs.existsSync(serverBinary), `missing server binary: ${serverBinary}`);
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149 assert.ok(fs.existsSync(chromiumPath), `missing Chromium binary: ${chromiumPath}`);
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150
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151 hgServer = spawn(
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152 'hg',
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153 [
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154 '--repository', fixtureRoot,
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155 'serve',
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156 '--address', '127.0.0.1',
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157 '--port', '4444',
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158 '--accesslog', '-',
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159 '--errorlog', '-',
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160 ],
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161 {
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162 env: mercurialEnvironment(fixtureRoot),
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163 stdio: ['ignore', 'pipe', 'pipe'],
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164 },
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165 );
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166 hgServer.stdout.on('data', chunk => hgLogs.push(chunk.toString()));
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167 hgServer.stderr.on('data', chunk => hgLogs.push(chunk.toString()));
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168
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169 appServer = spawn(serverBinary, [], {
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170 cwd: runfilesWorkspace,
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171 stdio: ['ignore', 'pipe', 'pipe'],
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172 });
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173 appServer.stdout.on('data', chunk => appLogs.push(chunk.toString()));
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174 appServer.stderr.on('data', chunk => appLogs.push(chunk.toString()));
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175
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176 await waitForHttp(`${BASE_URL}/`, appServer, appLogs);
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177 if (hgServer.exitCode !== null) {
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178 throw new Error(`Mercurial server exited early with ${hgServer.exitCode}\n${hgLogs.join('')}`);
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179 }
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180 await waitForHttp(`${BASE_URL}/api/repo/list`, hgServer, hgLogs);
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181
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182 for (const pathname of ['/', '/directory', '/directory?path=docs', '/graph', `/changeset/${tipNode}`]) {
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183 const response = await fetch(`${BASE_URL}${pathname}`);
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184 assert.equal(response.status, 200, `${pathname} shell route`);
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185 assert.match(await response.text(), /<title>Zenbu Repository<\/title>/);
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186 }
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187 for (const pathname of ['/page.js', '/index.css', '/base.css', '/pencil_lines.png', '/panda.png']) {
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188 const response = await fetch(`${BASE_URL}${pathname}`);
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189 assert.equal(response.status, 200, `${pathname} static asset`);
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190 assert.ok((await response.arrayBuffer()).byteLength > 0, `${pathname} is non-empty`);
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191 }
224
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192 for (const pathname of ['/hg-web-background.jpg', '/pencil_texture.png']) {
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193 assert.equal((await fetch(`${BASE_URL}${pathname}`)).status, 404);
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194 }
223
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195
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196 const rootList = await assertJson('/api/repo/list');
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197 assert.ok(rootList.directories.some(entry => entry.basename === 'docs'));
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198 assert.ok(rootList.files.some(entry => entry.basename === 'README.md'));
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199
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200 const nestedList = await assertJson('/api/repo/list?path=docs');
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201 assert.ok(nestedList.files.some(entry => entry.basename === 'README.md'));
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202
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203 const fileResponse = await fetch(`${BASE_URL}/api/repo/file?path=src%2Fmain.c`);
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204 assert.equal(fileResponse.status, 200);
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205 assert.match(await fileResponse.text(), /int main/);
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206
224
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207 for (const [filename, contentType, disposition] of [
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208 ['pixel.png', 'image/png', 'inline'],
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209 ['movie.mp4', 'video/mp4', 'inline'],
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210 ['sound.mp3', 'audio/mpeg', 'inline'],
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211 ['document.pdf', 'application/pdf', 'inline'],
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212 ['archive.bin', 'application/octet-stream', 'attachment'],
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parents: 223
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213 ]) {
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214 const response = await fetch(
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215 `${BASE_URL}/api/repo/file?path=${encodeURIComponent(filename)}`,
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216 );
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217 assert.equal(response.status, 200, `${filename} response`);
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218 assert.match(response.headers.get('content-type') || '', new RegExp(`^${contentType}`));
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219 assert.equal(response.headers.get('content-disposition'), disposition);
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220 assert.equal(response.headers.get('x-content-type-options'), 'nosniff');
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221 assert.ok((await response.arrayBuffer()).byteLength > 0);
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222 }
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223 const binaryResponse = await fetch(`${BASE_URL}/api/repo/file?path=archive.bin`);
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224 assert.deepEqual(
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225 Buffer.from(await binaryResponse.arrayBuffer()),
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226 Buffer.from([0, 1, 2, 3]),
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227 );
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228
223
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229 const readmeResponse = await fetch(`${BASE_URL}/api/repo/readme?path=docs`);
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230 assert.equal(readmeResponse.status, 200);
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231 assert.match(await readmeResponse.text(), /Nested README/);
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232 assert.equal((await fetch(`${BASE_URL}/api/repo/readme?path=src`)).status, 204);
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233
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234 const graph = await assertJson('/api/graph/tip?style=json');
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235 assert.equal(graph.node, tipNode);
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236 assert.ok(graph.changesets.length >= 2);
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237
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238 const changeset = await assertJson(`/api/changeset/${tipNode}`);
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239 assert.equal(changeset.node, tipNode);
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240 assert.equal(changeset.desc, 'Update fixture');
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241 assert.ok(changeset.files.some(entry => entry.file === 'new-file.txt' && entry.status === 'added'));
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242 assert.ok(changeset.diff.length > 0);
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243
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244 for (const pathname of [
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245 '/api/repo/list?path=..%2Fetc',
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246 '/api/repo/file?path=..%2FREADME.md',
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247 '/api/graph/not-a-node?style=json',
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248 '/api/changeset/not-a-node',
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249 ]) {
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250 const response = await fetch(`${BASE_URL}${pathname}`);
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251 assert.equal(response.status, 400, `${pathname} rejects invalid input`);
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252 }
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253 assert.equal((await fetch(`${BASE_URL}/missing-route`)).status, 404);
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254
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255 const identify = run(
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256 'hg',
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257 ['identify', `${BASE_URL}/repo`],
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258 { env: mercurialEnvironment(fixtureRoot) },
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259 );
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260 assert.match(identify, new RegExp(`^${tipNode.slice(0, 12)}`));
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261
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262 browser = await chromium.launch({
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263 executablePath: chromiumPath,
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264 headless: true,
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265 args: ['--no-sandbox'],
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266 });
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267
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268 await assertPageHasNoBrowserErrors(browser, '/', async page => {
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269 await page.getByRole('heading', { name: 'Zenbu Repository' }).waitFor();
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270 await page.getByText('Recent Commits').waitFor();
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271 await page.getByText('Repository Files').waitFor();
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272 assert.equal(await page.evaluate(() => window.__hgWebXss), undefined);
224
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273 assert.equal(
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274 await page.locator('.graph-container').evaluate(
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275 element => getComputedStyle(element).backgroundImage,
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276 ),
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277 'none',
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278 );
223
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279 await page.locator('.theme-toggle').click();
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280 });
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281
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282 await assertPageHasNoBrowserErrors(browser, '/directory', async page => {
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283 await page.getByText('Repository Files').waitFor();
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284 await page.getByRole('link', { name: 'README.md' }).first().click();
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285 await page.getByText('Fixture Repository').waitFor();
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286 assert.equal(await page.evaluate(() => window.__hgWebXss), undefined);
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287 await page.keyboard.press('Escape');
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288
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289 let delayedReadmeRequested = false;
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290 let markReadmeRequested;
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291 const readmeRequested = new Promise(resolve => {
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292 markReadmeRequested = resolve;
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293 });
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294 await page.route(/\/api\/repo\/readme\?path=/, async route => {
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295 delayedReadmeRequested = true;
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296 markReadmeRequested();
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297 await new Promise(resolve => setTimeout(resolve, 500));
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298 await route.continue();
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299 });
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300 await page.getByRole('link', { name: 'docs' }).click();
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301 await Promise.race([
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302 readmeRequested,
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303 new Promise((_, reject) => {
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304 setTimeout(() => reject(new Error('Timed out waiting for delayed README request')), 5000);
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305 }),
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306 ]);
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307 await page.getByRole('link', { name: 'root' }).click();
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308 await page.getByText('Fixture Repository').waitFor();
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309 await page.waitForTimeout(600);
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310 assert.equal(await page.getByText('Documentation').count(), 0);
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311 assert.equal(delayedReadmeRequested, true);
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312
224
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313 await page.getByRole('link', { name: 'pixel.png' }).click();
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314 const image = page.locator('.static-file-image');
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315 await image.waitFor();
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316 await image.evaluate(element => {
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317 const imageElement = element;
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318 if (imageElement.complete) return;
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319 return new Promise((resolve, reject) => {
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320 imageElement.addEventListener('load', resolve, { once: true });
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321 imageElement.addEventListener('error', reject, { once: true });
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322 });
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323 });
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324 assert.equal(await image.evaluate(element => element.naturalWidth), 1);
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325 await page.getByRole('dialog', { name: 'Preview pixel.png' }).waitFor();
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326 await page.keyboard.press('Escape');
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327
223
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328 await page.getByRole('link', { name: 'src' }).click();
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329 await page.getByRole('link', { name: 'main.c' }).click();
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330 await page.getByText('int main(void)').waitFor();
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331 await page.keyboard.press('Escape');
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332 });
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333
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334 await assertPageHasNoBrowserErrors(browser, '/directory?path=docs', async page => {
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335 await page.getByText('Documentation').waitFor();
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336 await page.getByRole('link', { name: 'README.md' }).click();
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337 await page.getByText('Nested README.').waitFor();
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338 });
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339
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340 await assertPageHasNoBrowserErrors(browser, '/graph', async page => {
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341 await page.getByText('Commit Graph').waitFor();
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342 await page.waitForFunction(() => new URL(window.location.href).searchParams.has('tip'));
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343 const graphUrl = page.url();
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344 const rows = page.locator('.graph-row');
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345 await rows.first().click();
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346 await page.waitForURL(/\/changeset\/[0-9a-f]+$/);
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347 await page.getByRole('heading', { name: 'Update fixture' }).waitFor();
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348 await page.getByRole('button', { name: 'Back', exact: true }).click();
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349 await page.waitForFunction(expected => window.location.href === expected, graphUrl);
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350 await page.getByText('Commit Graph').waitFor();
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351 });
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352
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353 await assertPageHasNoBrowserErrors(browser, `/changeset/${tipNode}`, async page => {
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354 await page.getByRole('heading', { name: 'Update fixture' }).waitFor();
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355 await page.locator('.changeset-files code').filter({ hasText: 'new-file.txt' }).waitFor();
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356 await page.getByText('added', { exact: true }).waitFor();
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357 await page.getByRole('region', { name: 'Changeset diff' }).waitFor();
224
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diff changeset
358 assert.equal(
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359 await page.locator('.changeset-paper').evaluate(
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360 element => getComputedStyle(element).backgroundImage,
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diff changeset
361 ),
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362 'none',
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diff changeset
363 );
223
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364 await page.getByRole('button', { name: firstNode.slice(0, 12) }).click();
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365 await page.waitForFunction(
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366 expectedPath => window.location.pathname === expectedPath,
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367 `/changeset/${firstNode}`,
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368 );
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369 await page.getByRole('heading', { name: 'Initial fixture' }).waitFor();
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370 await page.getByRole('button', { name: 'Back', exact: true }).click();
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371 await page.getByRole('heading', { name: 'Update fixture' }).waitFor();
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372 await page.getByRole('button', { name: 'Back', exact: true }).click();
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373 await page.getByText('Commit Graph').waitFor();
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374 });
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375
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376 await assertPageHasNoBrowserErrors(browser, '/changeset/not-a-node', async page => {
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377 await page.getByText('Recent Commits').waitFor();
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378 });
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379
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380 await stopProcess(hgServer);
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381 const unavailable = await fetch(`${BASE_URL}/api/repo/list`);
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382 assert.equal(unavailable.status, 502);
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383 assert.equal((await fetch(`${BASE_URL}/`)).status, 200);
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384 } finally {
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385 if (browser) await browser.close();
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386 await stopProcess(appServer);
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387 await stopProcess(hgServer);
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388 fs.rmSync(fixtureRoot, { recursive: true, force: true });
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389 }
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390 }
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391
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392 main().catch(error => {
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393 console.error(error.stack || error);
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394 process.exitCode = 1;
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395 });