const cartsSlice = createSlice({ name: CARTS, initialState, reducers: { increaseCartItemQuantityById: (state, { payload }: PayloadAction<{ cartItemId: number }>) => { const targetIndex = state.carts.value.findIndex( (cartItem) => cartItem.id === payload.cartItemId, ); if (targetIndex === -1) throw new Error('mismatched id'); state.carts.value[targetIndex].quantity = state.carts.value[targetIndex].quantity + 1; },

Quiero probar si un reductor arroja bien un error. Así que trato de probar usando thThrow, thThrowError, etc.

lo intenté

 it('throw error test', () => { const MISMATCHED_ID = 1; const error = new Error('mismatched id'); expect( cartsReducer( cartsReducerInitialState, increaseCartItemQuantityById({ cartItemId: MISMATCHED_ID }), ), ) .toThrowError(error); // fail .toThrow(error); // fail .toThrowErrror('mismatched id'); // fail .toThrowErrror(/mismatched id/); // fail .toHaveErrorMessage(/mismatched id/); // fail .toHaveErrorMessage('mismatched id'); // fail }); });

Todas estas formas han fallado... Solo devolvió este mensaje

FAIL store/modules/carts/ tests /cartsReducer.test.ts ● › aumentarCartItemQuantityById › arrojar prueba de error

 mismatched id 37 | }, 38 | } as CartsReducerState, > 39 | reducers: { | ^ 40 | addCartItem: (state, { payload }: PayloadAction<{ newCartItem: CartItem }>) => { 41 | state.carts.value = [...state.carts.value, payload.newCartItem]; 42 | }, at increaseCartItemQuantityById (store/modules/carts/slice.ts:39:43) at recipe (node_modules/@reduxjs/toolkit/src/createReducer.ts:280:20) at Immer.produce (node_modules/immer/src/core/immerClass.ts:94:14) at node_modules/@reduxjs/toolkit/src/createReducer.ts:279:18 at Array.reduce (<anonymous>) at reducer (node_modules/@reduxjs/toolkit/src/createReducer.ts:246:25) at Object.reducer [as cartsReducer] (node_modules/@reduxjs/toolkit/src/createSlice.ts:325:14) at Object.<anonymous> (store/modules/carts/__tests__/cartsReducer.test.ts:55:32)