99 lines
3.2 KiB
TypeScript
99 lines
3.2 KiB
TypeScript
import { RouterContext, BlitzRouter, BlitzProvider } from "blitz";
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import { render as defaultRender } from "@testing-library/react";
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import { renderHook as defaultRenderHook } from "@testing-library/react-hooks";
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export * from "@testing-library/react";
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// --------------------------------------------------------------------------------
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// This file customizes the render() and renderHook() test functions provided
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// by React testing library. It adds a router context wrapper with a mocked router.
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//
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// You should always import `render` and `renderHook` from this file
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//
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// This is the place to add any other context providers you need while testing.
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// --------------------------------------------------------------------------------
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// --------------------------------------------------
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// render()
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// --------------------------------------------------
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// Override the default test render with our own
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//
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// You can override the router mock like this:
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//
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// const { baseElement } = render(<MyComponent />, {
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// router: { pathname: '/my-custom-pathname' },
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// });
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// --------------------------------------------------
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export function render(ui: RenderUI, { wrapper, router, dehydratedState, ...options }: RenderOptions = {}) {
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if (!wrapper) {
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// Add a default context wrapper if one isn't supplied from the test
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wrapper = ({ children }) => (
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<BlitzProvider dehydratedState={dehydratedState}>
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<RouterContext.Provider value={{ ...mockRouter, ...router }}>{children}</RouterContext.Provider>
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</BlitzProvider>
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);
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}
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return defaultRender(ui, { wrapper, ...options });
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}
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// --------------------------------------------------
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// renderHook()
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// --------------------------------------------------
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// Override the default test renderHook with our own
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//
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// You can override the router mock like this:
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//
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// const result = renderHook(() => myHook(), {
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// router: { pathname: '/my-custom-pathname' },
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// });
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// --------------------------------------------------
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export function renderHook(hook: RenderHook, { wrapper, router, dehydratedState, ...options }: RenderHookOptions = {}) {
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if (!wrapper) {
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// Add a default context wrapper if one isn't supplied from the test
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wrapper = ({ children }) => (
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<BlitzProvider dehydratedState={dehydratedState}>
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<RouterContext.Provider value={{ ...mockRouter, ...router }}>{children}</RouterContext.Provider>
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</BlitzProvider>
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);
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}
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return defaultRenderHook(hook, { wrapper, ...options });
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}
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export const mockRouter: BlitzRouter = {
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basePath: "",
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pathname: "/",
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route: "/",
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asPath: "/",
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params: {},
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query: {},
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isReady: true,
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isLocaleDomain: false,
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isPreview: false,
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push: jest.fn(),
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replace: jest.fn(),
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reload: jest.fn(),
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back: jest.fn(),
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prefetch: jest.fn(),
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beforePopState: jest.fn(),
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events: {
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on: jest.fn(),
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off: jest.fn(),
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emit: jest.fn(),
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},
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isFallback: false,
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};
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type DefaultParams = Parameters<typeof defaultRender>;
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type RenderUI = DefaultParams[0];
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type RenderOptions = DefaultParams[1] & {
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router?: Partial<BlitzRouter>;
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dehydratedState?: unknown;
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};
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type DefaultHookParams = Parameters<typeof defaultRenderHook>;
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type RenderHook = DefaultHookParams[0];
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type RenderHookOptions = DefaultHookParams[1] & {
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router?: Partial<BlitzRouter>;
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dehydratedState?: unknown;
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};
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