42 lines
986 B
TypeScript
42 lines
986 B
TypeScript
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/**
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* @jest-environment jsdom
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*/
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import { act, renderHook } from "@testing-library/react-hooks";
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import useToggle from "./useToggle";
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describe("useToggle", () => {
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it("has a default value of false", () => {
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const { result } = renderHook(() => useToggle());
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const [value] = result.current;
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expect(value).toBe(false);
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});
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it("uses the initial value", () => {
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const { result } = renderHook(() => useToggle(true));
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const [value] = result.current;
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expect(value).toBe(true);
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});
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it("toggles the value", () => {
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const { result } = renderHook(() => useToggle());
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const [, toggleValue] = result.current;
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act(() => toggleValue());
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const [value] = result.current;
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expect(value).toBe(true);
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});
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it("sets the value", () => {
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const { result } = renderHook(() => useToggle());
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const [, , setValue] = result.current;
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act(() => setValue(true));
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const [value] = result.current;
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expect(value).toBe(true);
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});
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});
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