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fix: correct instanceof for ModernFakeTimers and LegacyFakeTimers methods #11946

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merged 4 commits into from Oct 15, 2021
Merged

fix: correct instanceof for ModernFakeTimers and LegacyFakeTimers methods #11946

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de211da
fix: use typeof type guard instead of instanceof to differentiate Mod…
minijus Oct 10, 2021
f1602d0
only dev dep now
SimenB Oct 15, 2021
e4b2867
simplify check
SimenB Oct 15, 2021
e1ec9b7
tweak changelog
SimenB Oct 15, 2021
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -5,6 +5,7 @@
### Fixes

- `[jest-runtime]` Ensure absolute paths can be resolved within test modules ([11943](https://github.com/facebook/jest/pull/11943))
- `[jest-runtime]` Fix `instanceof` for `ModernFakeTimers` and `LegacyFakeTimers` methods ([#11946](https://github.com/facebook/jest/pull/11946))

### Chore & Maintenance

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2 changes: 1 addition & 1 deletion packages/jest-runtime/package.json
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Expand Up @@ -16,7 +16,6 @@
"dependencies": {
"@jest/console": "^27.2.5",
"@jest/environment": "^27.2.5",
"@jest/fake-timers": "^27.2.5",
"@jest/globals": "^27.2.5",
"@jest/source-map": "^27.0.6",
"@jest/test-result": "^27.2.5",
Expand All @@ -43,6 +42,7 @@
"yargs": "^16.2.0"
},
"devDependencies": {
"@jest/fake-timers": "^27.2.5",
"@jest/test-utils": "^27.2.5",
"@types/exit": "^0.1.30",
"@types/glob": "^7.1.1",
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8 changes: 4 additions & 4 deletions packages/jest-runtime/src/index.ts
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Expand Up @@ -30,7 +30,7 @@ import type {
Module,
ModuleWrapper,
} from '@jest/environment';
import {LegacyFakeTimers, ModernFakeTimers} from '@jest/fake-timers';
import type {LegacyFakeTimers, ModernFakeTimers} from '@jest/fake-timers';
import type * as JestGlobals from '@jest/globals';
import type {SourceMapRegistry} from '@jest/source-map';
import type {RuntimeTransformResult, V8CoverageResult} from '@jest/test-result';
Expand Down Expand Up @@ -1963,7 +1963,7 @@ export default class Runtime {
getRealSystemTime: () => {
const fakeTimers = _getFakeTimers();

if (fakeTimers instanceof ModernFakeTimers) {
if (fakeTimers === this._environment.fakeTimersModern) {
return fakeTimers.getRealSystemTime();
} else {
throw new TypeError(
Expand All @@ -1984,7 +1984,7 @@ export default class Runtime {
runAllImmediates: () => {
const fakeTimers = _getFakeTimers();

if (fakeTimers instanceof LegacyFakeTimers) {
if (fakeTimers === this._environment.fakeTimers) {
fakeTimers.runAllImmediates();
} else {
throw new TypeError(
Expand All @@ -2000,7 +2000,7 @@ export default class Runtime {
setSystemTime: (now?: number | Date) => {
const fakeTimers = _getFakeTimers();

if (fakeTimers instanceof ModernFakeTimers) {
if (fakeTimers === this._environment.fakeTimersModern) {
fakeTimers.setSystemTime(now);
} else {
throw new TypeError(
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