Florian Duros
27 lines
879 B
TypeScript
27 lines
879 B
TypeScript
/*
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* Copyright 2025 New Vector Ltd.
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*
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* SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
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* Please see LICENSE files in the repository root for full details.
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*/
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import { useMemo } from "react";
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import { MockViewModel } from "./MockViewModel";
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import { type ViewModel } from "./ViewModel";
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/**
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* Hook helper to return a mocked view model created with the given snapshot and actions.
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* This is useful for testing components in isolation with a mocked view model and allows to use primitive types in stories.
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*
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* @param snapshot
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* @param actions
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*/
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export function useMockedViewModel<S, A>(snapshot: S, actions: A): ViewModel<S> & A {
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return useMemo(() => {
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const vm = new MockViewModel<S>(snapshot);
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Object.assign(vm, actions);
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return vm as unknown as ViewModel<S> & A;
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}, [snapshot, actions]);
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}
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