test: setup workerd isolate tests #311
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pi0
commented
Sep 19, 2024
pi0
commented
Sep 19, 2024
| import assert from "node:assert"; | ||
| import process from "node:process"; | ||
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| globalThis.process = process; |
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Without this, workerd fail:
workerd/io/worker.c++:1950: info: uncaught exception; source = Uncaught (in promise); stack = ReferenceError: process is not defined
at unenv/runtime/node/crypto:387:21
workerd/io/io-context.c++:348: info: uncaught exception; exception = workerd/jsg/_virtual_includes/jsg/workerd/jsg/value.h:1367: failed: jsg.ReferenceError: process is not defined
(process is used for process.getBuiltinModule("node:crypto")...)
pi0
commented
Sep 19, 2024
| format: "esm", | ||
| target: "esnext", | ||
| platform: "node", | ||
| sourcemap: "inline", |
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It seems not being picked by workerd.
pi0
commented
Sep 19, 2024
| }, | ||
| }; | ||
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| // ---- node:url ---- |
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We have all Node.js upstream tests for url, in test/node/* now. But since this entry is inlined in capnp config, I'm not sure how to dynamically bring them. If we can, we can reuse same impl.
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This PR adds isolated tests via workerd.
This setup uses a small Node.js wrapper that starts a module fallback server (based on cloudflare/workerd#1423) and then spawns
workerd testto run tests.The fallback server, maps
unenv/runtime/*requests to source code (transpiled with esbuild to allow HMR). esbuild config usesenv(nodeless, cloudflare)aliases to match the expected bundler behavior when resolving internalnode:aliases.As sample, two tests for
crypto.getRandomValuesandurl.parse(fail behavior) are added. We shall iterate and add more coverage for runtime safety as we introduce new features.Usage:
pnpm test:workerdpnpm test:workerd --watch(watch mode)DUMP_MODULES=1 pnpm test:workerd(dump server modules totest/workerd/.tmpfor inspection)