migrate-to-shoehorn

---

name: migrate-to-shoehorn description: Migrate test files from as type assertions to @total-typescript/shoehorn. Use when user mentions shoehorn, wants to replace as in tests, or needs partial test data.

tags: [mattpocock, migrate-to-shoehorn, typescript] ------------ | -------------------------------------------------- | | fromPartial() | Pass partial data that still type-checks | | fromAny() | Pass intentionally wrong data (keeps autocomplete) | | fromExact() | Force full object (swap with fromPartial later) |

Workflow

1. Gather requirements - ask user:

   • What test files have as assertions causing problems?
   • Are they dealing with large objects where only some properties matter?
   • Do they need to pass intentionally wrong data for error testing?

2. Install and migrate:

   • Install: npm i @total-typescript/shoehorn
   • Find test files with as assertions: grep -r " as [A-Z]" --include="*.test.ts" --include="*.spec.ts"
   • Replace as Type with fromPartial()
   • Replace as unknown as Type with fromAny()
   • Add imports from @total-typescript/shoehorn
   • Run type check to verify