45 lines
1.4 KiB
TypeScript
45 lines
1.4 KiB
TypeScript
// This file is part of Moonfire NVR, a security camera network video recorder.
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// Copyright (C) 2021 The Moonfire NVR Authors; see AUTHORS and LICENSE.txt.
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// SPDX-License-Identifier: GPL-v3.0-or-later WITH GPL-3.0-linking-exception
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import { render, screen } from "@testing-library/react";
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import ErrorBoundary from "./ErrorBoundary";
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const BuggyComponent = () => {
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return [][0]; // return undefined in a way that outsmarts Typescript.
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};
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const ThrowsLiteralComponent = () => {
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throw "simple string error"; // eslint-disable-line no-throw-literal
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};
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test("renders error", () => {
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render(
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<ErrorBoundary>
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<BuggyComponent />
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</ErrorBoundary>
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);
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const buggyComponentElement = screen.getByText(/BuggyComponent/);
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expect(buggyComponentElement).toBeInTheDocument();
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const sorryElement = screen.getByText(/Sorry/);
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expect(sorryElement).toBeInTheDocument();
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});
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test("renders string error", () => {
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render(
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<ErrorBoundary>
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<ThrowsLiteralComponent />
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</ErrorBoundary>
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);
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const msgElement = screen.getByText(/simple string error/);
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expect(msgElement).toBeInTheDocument();
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});
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test("renders child on success", () => {
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render(<ErrorBoundary>foo</ErrorBoundary>);
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const fooElement = screen.getByText(/foo/);
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expect(fooElement).toBeInTheDocument();
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const sorryElement = screen.queryByText(/Sorry/);
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expect(sorryElement).toBeNull();
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});
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