littlejon
commented
2 years ago I have done some more testing and found the issue isn't directly connected to running a single test vs the suite, but more to do with the number of workers involved.
| Scenario | Num of Workers | Result | Notes | |
|---|---|---|---|---|
jest-next-all |
Jest Default (number of cores available minus one) | ✅ | PASS | |
jest-next-one |
Jest Default (number of cores available minus one) | ❌ | FAIL | Fails as one test = one worker |
jest-next-all-w1 |
--maxWorkers=1 |
❌ | FAIL | one worker |
jest-next-all-w2 |
--maxWorkers=2 |
✅ | PASS | |
jest-next-all-i |
--runInBand |
❌ | FAIL | All tests run serially in the current process (no worker threads) |
The above test scenarios when run against the babel config all pass.
I have tried tracing my way through the code in packages\next\build and ran out of skill to debug further. I can see from the cached output between the two configs that the code is being transpiled slightly different.
The only functional difference I can see is SWC adds Object.defineProperty(exports, "__esModule", { value: true }); to the transpiled test file whereas Babel doesn't. Although I don't have a deep enough understanding to know if this would make the difference.
Any pointers on how to debug this further?
globalSetup.ts - SWC
909b94d6cb9563490b1987711d427323
/* eslint-disable import/no-anonymous-default-export */ "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
setup: ()=>setup,
default: ()=>_default
});
const setup = async ()=>{
process.env.TZ = "UTC";
};
const _default = setup;
//# sourceMappingURL=data:application/json;base64,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.ts - Babel
426d5cefb5cb6353e2d6ebeb1e635ba9
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.setup = exports.default = void 0;
/* eslint-disable import/no-anonymous-default-export */
const setup = async () => {
process.env.TZ = "UTC";
};
exports.setup = setup;
var _default = setup;
exports.default = _default;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,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formatDate.test.tsx - SWC
7229085341935b999a1c427b6e753607
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
const _globals = require("@jest/globals");
(0, _globals.describe)("ISO Date", ()=>{
const date = "2021-10-20T13:06:05Z";
(0, _globals.it)("returns correct hour value", ()=>{
console.log(`Timezone Offset: ${new Date().getTimezoneOffset()}`);
(0, _globals.expect)(new Date(date).getHours()).toBe(13);
});
});
//# sourceMappingURL=data:application/json;base64,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.test.tsx - Babel
98aeaa1f1992f1589af8d940e7ebc0b9
"use strict";
var _globals = require("@jest/globals");
(0, _globals.describe)("ISO Date", () => {
const date = "2021-10-20T13:06:05Z";
(0, _globals.it)("returns correct hour value", () => {
console.log(`Timezone Offset: ${new Date().getTimezoneOffset()}`);
(0, _globals.expect)(new Date(date).getHours()).toBe(13);
});
});
//# sourceMappingURL=data:application/json;charset=utf-8;base64,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
Verify canary release
Provide environment information
warn - Latest canary version not detected, detected: "12.3.2-canary.35", newest: "12.3.2-canary.37". Please try the latest canary version (
npm install next@canary) to confirm the issue still exists before creating a new issue. Read more - https://nextjs.org/docs/messages/opening-an-issueWhat browser are you using? (if relevant)
No response
How are you deploying your application? (if relevant)
No response
Describe the Bug
Using the
globalSetupconfig I have the TZ env variable set to UTC.globalSetup.tsWhen running a suite of tests, the TZ is honored. When running a single test, the TZ is ignored and the test fails.
I have setup a reproduction repo with two jest configs (one using the Rust compiler, and one setup to opt-out). This issue is only seen when using the Rust compiler configured via
next/jest.Test content
Expected Behavior
Consistent test results when running an individual test and when running the whole test suite.
Link to reproduction
https://github.com/littlejon/jest-next-time-zone-issue
To Reproduce
Install
Run Tests
jest-babel-all
jest-babel-one
jest-next-all
jest-next-one