[No QA] Remove unsafe type assertions from CardUtilsTest.ts tests - #96521
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| // OAuth/Plaid feeds that require oAuthAccountDetails (matches backend: isOAuthBank || isPlaidBank) | ||
| const oAuthAndPlaidFeedTypes: CompanyCardFeed[] = [ | ||
| const oAuthAndPlaidFeedTypes: string[] = [ |
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Widening this from CompanyCardFeed[] to string[] is the root of most of this PR's damage. Once feed is string, the fixture literal {companyCards: {[feed]: ...}} no longer satisfies CardFeeds (whose companyCards is keyed by CompanyCardFeed), which is what forces every test.each case below into the Reflect.apply bypass. Keep the precise element type and build the fixtures as the real type — you already do this correctly at line 631 with createMock<CardFeeds> — and the calls type-check with no bypass at all.
– written by Claude on Ben's behalf
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Fixed in the latest commits.
I restored oAuthAndPlaidFeedTypes to CompanyCardFeed[] and rebuilt the affected fixtures with createMock. The supported feed cases now type-check normally, while the dynamic Plaid value has a localized, documented boundary.
| }, | ||
| }; | ||
| const companyFeeds = getOriginalCompanyFeeds(cardFeeds); | ||
| const companyFeeds: unknown = Reflect.apply(getOriginalCompanyFeeds, undefined, [cardFeeds]); |
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This Reflect.apply(...) + : unknown pattern is a disguised type assertion that is broader than the as it replaces, and it's repeated ~12 times in this file.
Mechanics: no-unsafe-type-assertion only matches x as T syntax. Reflect.apply(fn, undefined, [args]) resolves to the fallback overload (target: Function, thisArgument: any, argumentsList: ArrayLike<any>): any, so it (1) accepts any arguments regardless of getOriginalCompanyFeeds's real parameter types and (2) returns any, which the : unknown annotation then launders past no-unsafe-assignment.
Two problems a plain as did not have:
- It erases the entire call signature. A normal
ascasts one argument; this discards parameter checking AND the return type for every call.getOriginalCompanyFeedsreturnsCompanyFeeds(src/libs/CardUtils.ts:766) — thrown away, soObject.keys(companyFeeds)now runs againstunknownand thethrowguard below exists only to makeunknownusable. If the function's signature ever changes, none of these ~12 tests break — which is the exact protection typed test inputs are supposed to give. - There is no boundary here to justify it. Unlike a
JSON.parseresult,cardFeedsis a compile-time literal andgetOriginalCompanyFeedsis imported directly; every type is known on both sides. Nothing needs narrowing.
Compare line 631 (createMock<CardFeeds>({...})) twelve lines up — identical test shape, done right: build the fixture as the real type, call normally, keep the CompanyFeeds return. Do that here and the Reflect.apply + : unknown + guard all disappear. As written, this turns 56 lint violations into 0 while making the file strictly less type-safe than the as casts it removed; leaving those in the seatbelt baseline would be safer.
– written by Claude on Ben's behalf
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Fixed.
All affected getOriginalCompanyFeeds tests now use typed createMock fixtures and direct function calls. The Reflect.apply, unknown return annotations, and compensating runtime guards were removed, so parameter checking and the real CompanyFeeds return type are preserved.
| }, | ||
| }; | ||
| expect(buildFeedKeysWithAssignedCards(allWorkspaceCards as unknown as OnyxCollection<WorkspaceCardsList>)).toStrictEqual({}); | ||
| const result: unknown = Reflect.apply(buildFeedKeysWithAssignedCards, undefined, [allWorkspaceCards]); |
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Same Reflect.apply + : unknown bypass as the getOriginalCompanyFeeds comment above, repeated for every buildFeedKeysWithAssignedCards call. This function returns Record<string, true> (src/selectors/Card.ts:20); the : unknown throws that away so toStrictEqual(...) now compares against unknown. Build allWorkspaceCards as OnyxCollection<WorkspaceCardsList> (or via createMock<...>) and call it normally — the real return type comes back and the bypass is unnecessary.
– written by Claude on Ben's behalf
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Fixed.
The workspace-card fixtures are now built as WorkspaceCardsList and OnyxCollection using createMock, and buildFeedKeysWithAssignedCards is called directly. Its Record<string, true> return type is preserved. I also retained the original fixture property order where it affects the tested short-circuit path.
| const feed = 'vvcf' as CompanyCardFeed; | ||
| const feedName = getBankName(feed); | ||
| const feed = 'vvcf'; | ||
| const feedName: unknown = Reflect.apply(getBankName, undefined, [feed]); |
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This getBankName cluster is the one place a boundary is arguably legitimate — these tests deliberately pass out-of-type inputs ('vvcf', undefined, ${AMEX_DIRECT} 2003) to verify runtime fallback. But two things are still wrong:
- The return type never needed erasing.
getBankNamereturnsstring(src/libs/CardUtils.ts:816); only the argument is out-of-type.: unknownon the result weakensexpect(feedName).toBe(...)for no reason. Whatever boundary you use, keep the result typedstring. Reflect.applyis the wrong boundary because it erases the whole signature. If you must feed an out-of-type value, make it surgical and visible — a single localized cast/suppression on just the argument, return type intact — not a mechanism that silently drops parameter and return checking.
Better still for this function specifically: these tests are evidence the production type is narrower than reality. "invalid feed → empty string" and "undefined → no TypeError" prove getBankName is built to handle arbitrary strings at runtime. Widening the parameter to accept string (coordinate separately) removes the need for any boundary here, keeps the string return, and drops the Reflect.apply entirely.
– written by Claude on Ben's behalf
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Fixed.
The Reflect.apply calls and unknown return annotations were removed. Representable OldDot values now use CardFeedWithNumber directly. Deliberately malformed or missing runtime inputs use localized, documented assertions on the argument only, while getBankName retains its inferred string return type.
Reviewer Checklist
Screenshots/VideosAndroid: HybridAppAndroid: mWeb ChromeiOS: HybridAppiOS: mWeb SafariMacOS: Chrome / Safari |
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🚀 Deployed to staging by https://github.com/blimpich in version: 9.4.44-0 🚀
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🚀 Deployed to production by https://github.com/marcaaron in version: 9.4.44-6 🚀
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Explanation of Change
Removed
@typescript-eslint/no-unsafe-type-assertionviolations fromtests/unit/CardUtilsTest.tsas part of the cleanup for Expensify/App issue #94739.What changed:
Why this approach is safe:
Reviewer focus:
Safety checks:
Fixed Issues
$ #94739
PROPOSAL: #94739 (comment)
Count change
Current baseline source:
config/eslint/eslint.seatbelt.tsvBefore:
tests/unit/CardUtilsTest.ts: 56 violationsAfter:
tests/unit/CardUtilsTest.ts: 0 violationsNet reduction:
@typescript-eslint/no-unsafe-type-assertionviolations.TSV evidence:
main.Tests
Run:
Verify focused lint passes with no target-rule warnings for the edited file.
Run:
Verify the generated seatbelt row reflects 0 violations, then restore
config/eslint/eslint.seatbelt.tsvbefore committing.Run:
Verify the focused test suite passes.
Verification result: Bounded formatting, focused lint, TSV generation and restoration, focused Jest with 458 passing tests, Oxfmt, React Compiler, diff hygiene, strict target diagnostics, and trusted Fork CI passed.
Offline tests
Not applicable because this is a unit-test-only type-safety cleanup with no network or offline behavior changes.
QA Steps
Not applicable for staging or production because production behavior and application code are unchanged; run the focused CardUtils unit tests for verification.
PR Author Checklist
### Fixed Issuessection aboveTestssectionOffline stepssectionQA stepssectionAvatar, I verified the components usingAvatarare working as expected)StyleUtils.getBackgroundAndBorderStyle(theme.componentBG))npm run compress-svg)Avataris modified, I verified thatAvataris working as expected in all cases)Designlabel and/or tagged@Expensify/designso the design team can review the changes.mainbranch was merged into this PR after a review, I tested again and verified the outcome was still expected according to theTeststeps.Screenshots/Videos
Android: Native
Not applicable on Android, iOS, mobile web, macOS, Chrome, or Safari because only unit-test fixture construction changed and no platform code is affected.
Not applicable because this change has no user-interface or visual behavior changes.
Android: mWeb Chrome
Not applicable on Android, iOS, mobile web, macOS, Chrome, or Safari because only unit-test fixture construction changed and no platform code is affected.
Not applicable because this change has no user-interface or visual behavior changes.
iOS: Native
Not applicable on Android, iOS, mobile web, macOS, Chrome, or Safari because only unit-test fixture construction changed and no platform code is affected.
Not applicable because this change has no user-interface or visual behavior changes.
iOS: mWeb Safari
Not applicable on Android, iOS, mobile web, macOS, Chrome, or Safari because only unit-test fixture construction changed and no platform code is affected.
Not applicable because this change has no user-interface or visual behavior changes.
MacOS: Chrome / Safari
Not applicable on Android, iOS, mobile web, macOS, Chrome, or Safari because only unit-test fixture construction changed and no platform code is affected.
Not applicable because this change has no user-interface or visual behavior changes.