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checkModuleFormat.mjs
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54 lines (48 loc) · 1.75 KB
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import { createRequire } from "module";
import {
__importDefault,
__importStar,
} from "tslib";
import { pathToFileURL } from "url";
// This script tests that TypeScript's CJS API is structured
// as expected. It calls "require" as though it were in CWD,
// so it can be tested on a separate install of TypeScript.
const require = createRequire(process.cwd() + "/index.js");
const typescript = process.argv[2];
const resolvedTypeScript = pathToFileURL(require.resolve(typescript)).toString();
console.log(`Testing ${typescript}...`);
// See: https://github.com/microsoft/TypeScript/pull/51474#issuecomment-1310871623
/** @type {[fn: (() => Promise<any>), shouldSucceed: boolean][]} */
const fns = [
[() => require(typescript).version, true],
[() => require(typescript).default.version, false],
[() => __importDefault(require(typescript)).version, false],
[() => __importDefault(require(typescript)).default.version, true],
[() => __importStar(require(typescript)).version, true],
[() => __importStar(require(typescript)).default.version, true],
[async () => (await import(resolvedTypeScript)).version, true],
[async () => (await import(resolvedTypeScript)).default.version, true],
];
for (const [fn, shouldSucceed] of fns) {
let success = false;
try {
success = !!(await fn());
}
catch {
// Ignore
}
const status = success ? "succeeded" : "failed";
if (success === shouldSucceed) {
console.log(`${fn.toString()} ${status} as expected.`);
}
else {
console.log(`${fn.toString()} unexpectedly ${status}.`);
process.exitCode = 1;
}
}
if (process.exitCode) {
console.log("fail");
}
else {
console.log("ok");
}