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Blob: src/workerd/api/tests/tail-worker-test-jsrpc.js
| 1 | // Copyright (c) 2025 Cloudflare, Inc. |
| 2 | // Licensed under the Apache 2.0 license found in the LICENSE file or at: |
| 3 | // https://opensource.org/licenses/Apache-2.0 |
| 4 | import assert from 'node:assert'; |
| 5 | import { WorkerEntrypoint, DurableObject } from 'cloudflare:workers'; |
| 6 | |
| 7 | export class MyService extends WorkerEntrypoint { |
| 8 | // Define a property to test behavior of property accessors. |
| 9 | get nonFunctionProperty() { |
| 10 | // As a regression test for EW-9282, check that logging in a getter invoked via JSRPC is |
| 11 | // reflected in traces does not result in missing onset errors. This works through |
| 12 | // tail-worker-test, which calls into other tests to get traces from them and includes several |
| 13 | // tail worker implementations. See tail-worker-test.js for test output. |
| 14 | console.log('foo'); |
| 15 | return { foo: 123 }; |
| 16 | } |
| 17 | |
| 18 | // Test method that returns a transient object with methods. |
| 19 | // This tests that setJsRpcInfo is only called once for the entrypoint method, |
| 20 | // not again for transient object methods. |
| 21 | getCounter() { |
| 22 | console.log('getCounter called'); |
| 23 | return { |
| 24 | increment() { |
| 25 | console.log('increment called on transient'); |
| 26 | return 1; |
| 27 | }, |
| 28 | getValue() { |
| 29 | console.log('getValue called on transient'); |
| 30 | return 42; |
| 31 | }, |
| 32 | }; |
| 33 | } |
| 34 | |
| 35 | constructor(ctx, env) { |
| 36 | // As a regression test for EW-9282, check that logging in the constructor does not result in |
| 37 | // missing onset errors. This requires setting the onset event early on, before getting a |
| 38 | // handler to the entrypoint. |
| 39 | console.log('bar'); |
| 40 | super(ctx, env); |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | export class MyActor extends DurableObject { |
| 45 | async functionProperty() {} |
| 46 | |
| 47 | constructor(ctx, env) { |
| 48 | // As a regression test for EW-9282, check that logging in the constructor does not result in |
| 49 | // missing onset errors – for DOs, we need to report the onset even earlier. |
| 50 | super(ctx, env); |
| 51 | this.ctx.blockConcurrencyWhile(async () => { |
| 52 | console.log('baz'); |
| 53 | }); |
| 54 | } |
| 55 | } |
| 56 | |
| 57 | export default { |
| 58 | async test(controller, env, ctx) { |
| 59 | let getByName = (name) => { |
| 60 | return env.MyService.getRpcMethodForTestOnly(name); |
| 61 | }; |
| 62 | |
| 63 | // Check what happens if we access something that's actually declared as a property on the |
| 64 | // class. The difference in error message proves to us that `env` and `ctx` weren't visible at |
| 65 | // all, which is what we want. |
| 66 | await assert.rejects(() => getByName('nonFunctionProperty')(), { |
| 67 | name: 'TypeError', |
| 68 | message: '"nonFunctionProperty" is not a function.', |
| 69 | }); |
| 70 | |
| 71 | let id = env.MyActor.idFromName('foo'); |
| 72 | let stub = env.MyActor.get(id); |
| 73 | await stub.functionProperty(); |
| 74 | |
| 75 | // Test transient object methods - this should only report jsrpc.method for the initial |
| 76 | // getCounter() call, not for the subsequent increment() and getValue() calls on the |
| 77 | // returned transient object. |
| 78 | let counter = await env.MyService.getCounter(); |
| 79 | let result1 = await counter.increment(); |
| 80 | let result2 = await counter.getValue(); |
| 81 | assert.strictEqual(result1, 1); |
| 82 | assert.strictEqual(result2, 42); |
| 83 | }, |
| 84 | }; |