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// Node can look at the filesystem, but JS in the browser can't.
// This crawls the file tree under src/suites/${suite} to generate a (non-hierarchical) static
// listing file that can then be used in the browser to load the modules containing the tests.
import * as fs from 'fs';
import * as path from 'path';
import { SpecFile } from '../internal/file_loader.js';
import { validQueryPart } from '../internal/query/validQueryPart.js';
import { TestSuiteListingEntry, TestSuiteListing } from '../internal/test_suite_listing.js';
import { assert, unreachable } from '../util/util.js';
const specFileSuffix = __filename.endsWith('.ts') ? '.spec.ts' : '.spec.js';
async function crawlFilesRecursively(dir: string): Promise<string[]> {
const subpathInfo = await Promise.all(
(await fs.promises.readdir(dir)).map(async d => {
const p = path.join(dir, d);
const stats = await fs.promises.stat(p);
return {
path: p,
isDirectory: stats.isDirectory(),
isFile: stats.isFile(),
};
})
);
const files = subpathInfo
.filter(
i =>
i.isFile &&
(i.path.endsWith(specFileSuffix) ||
i.path.endsWith(`${path.sep}README.txt`) ||
i.path === 'README.txt')
)
.map(i => i.path);
return files.concat(
await subpathInfo
.filter(i => i.isDirectory)
.map(i => crawlFilesRecursively(i.path))
.reduce(async (a, b) => (await a).concat(await b), Promise.resolve([]))
);
}
export async function crawl(
suiteDir: string,
validate: boolean = true
): Promise<TestSuiteListingEntry[]> {
if (!fs.existsSync(suiteDir)) {
console.error(`Could not find ${suiteDir}`);
process.exit(1);
}
// Crawl files and convert paths to be POSIX-style, relative to suiteDir.
const filesToEnumerate = (await crawlFilesRecursively(suiteDir))
.map(f => path.relative(suiteDir, f).replace(/\\/g, '/'))
.sort();
const entries: TestSuiteListingEntry[] = [];
for (const file of filesToEnumerate) {
// |file| is the suite-relative file path.
if (file.endsWith(specFileSuffix)) {
const filepathWithoutExtension = file.substring(0, file.length - specFileSuffix.length);
const suite = path.basename(suiteDir);
if (validate) {
const filename = `../../${suite}/${filepathWithoutExtension}.spec.js`;
assert(!process.env.STANDALONE_DEV_SERVER);
const mod = (await import(filename)) as SpecFile;
assert(mod.description !== undefined, 'Test spec file missing description: ' + filename);
assert(mod.g !== undefined, 'Test spec file missing TestGroup definition: ' + filename);
mod.g.validate();
}
const pathSegments = filepathWithoutExtension.split('/');
for (const p of pathSegments) {
assert(validQueryPart.test(p), `Invalid directory name ${p}; must match ${validQueryPart}`);
}
entries.push({ file: pathSegments });
} else if (path.basename(file) === 'README.txt') {
const dirname = path.dirname(file);
const readme = fs.readFileSync(path.join(suiteDir, file), 'utf8').trim();
const pathSegments = dirname !== '.' ? dirname.split('/') : [];
entries.push({ file: pathSegments, readme });
} else {
unreachable(`Matched an unrecognized filename ${file}`);
}
}
return entries;
}
export function makeListing(filename: string): Promise<TestSuiteListing> {
// Don't validate. This path is only used for the dev server and running tests with Node.
// Validation is done for listing generation and presubmit.
return crawl(path.dirname(filename), false);
}
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