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error-boundary-v2-test.ts
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import type { Page } from "@playwright/test";
import { test, expect } from "@playwright/test";
import { UNSAFE_ServerMode as ServerMode } from "react-router";
import {
createAppFixture,
createFixture,
js,
} from "./helpers/create-fixture.js";
import type { Fixture, AppFixture } from "./helpers/create-fixture.js";
import { PlaywrightFixture } from "./helpers/playwright-fixture.js";
test.describe("ErrorBoundary", () => {
let fixture: Fixture;
let appFixture: AppFixture;
let oldConsoleError: () => void;
test.beforeAll(async () => {
fixture = await createFixture({
files: {
"app/root.tsx": js`
import { Links, Meta, Outlet, Scripts } from "react-router";
export default function Root() {
return (
<html lang="en">
<head>
<Meta />
<Links />
</head>
<body>
<main>
<Outlet />
</main>
<Scripts />
</body>
</html>
);
}
`,
"app/routes/parent.tsx": js`
import {
Link,
Outlet,
isRouteErrorResponse,
useLoaderData,
useRouteError,
} from "react-router";
export function loader() {
return "PARENT LOADER";
}
export default function Component() {
return (
<div>
<nav>
<ul>
<li><Link to="/parent/child-with-boundary">Link</Link></li>
<li><Link to="/parent/child-with-boundary?type=error">Link</Link></li>
<li><Link to="/parent/child-with-boundary?type=response">Link</Link></li>
<li><Link to="/parent/child-with-boundary?type=render">Link</Link></li>
<li><Link to="/parent/child-without-boundary?type=error">Link</Link></li>
<li><Link to="/parent/child-without-boundary?type=response">Link</Link></li>
<li><Link to="/parent/child-without-boundary?type=render">Link</Link></li>
</ul>
</nav>
<p id="parent-data">{useLoaderData()}</p>
<Outlet />
</div>
)
}
export function ErrorBoundary() {
let error = useRouteError();
return isRouteErrorResponse(error) ?
<p id="parent-error-response">{error.status + ' ' + error.data}</p> :
<p id="parent-error">{error.message}</p>;
}
`,
"app/routes/parent.child-with-boundary.tsx": js`
import {
isRouteErrorResponse,
useLoaderData,
useLocation,
useRouteError,
} from "react-router";
export function loader({ request }) {
let errorType = new URL(request.url).searchParams.get('type');
if (errorType === 'response') {
throw new Response('Loader Response', { status: 418 });
} else if (errorType === 'error') {
throw new Error('Loader Error');
}
return "CHILD LOADER";
}
export default function Component() {;
let data = useLoaderData();
if (new URLSearchParams(useLocation().search).get('type') === "render") {
throw new Error("Render Error");
}
return <p id="child-data">{data}</p>;
}
export function ErrorBoundary() {
let error = useRouteError();
return isRouteErrorResponse(error) ?
<p id="child-error-response">{error.status + ' ' + error.data}</p> :
<p id="child-error">{error.message}</p>;
}
`,
"app/routes/parent.child-without-boundary.tsx": js`
import { useLoaderData, useLocation } from "react-router";
export function loader({ request }) {
let errorType = new URL(request.url).searchParams.get('type');
if (errorType === 'response') {
throw new Response('Loader Response', { status: 418 });
} else if (errorType === 'error') {
throw new Error('Loader Error');
}
return "CHILD LOADER";
}
export default function Component() {;
let data = useLoaderData();
if (new URLSearchParams(useLocation().search).get('type') === "render") {
throw new Error("Render Error");
}
return <p id="child-data">{data}</p>;
}
`,
},
});
appFixture = await createAppFixture(fixture, ServerMode.Development);
});
test.afterAll(() => {
appFixture.close();
});
test.beforeEach(({ page }) => {
oldConsoleError = console.error;
console.error = () => {};
});
test.afterEach(() => {
console.error = oldConsoleError;
});
test.describe("without JavaScript", () => {
test.use({ javaScriptEnabled: false });
runBoundaryTests();
});
test.describe("with JavaScript", () => {
test.use({ javaScriptEnabled: true });
runBoundaryTests();
test("Network errors that never reach the Remix server", async ({
page,
}) => {
// Cause a .data request to trigger an HTTP error that never reaches the
// Remix server, and ensure we properly handle it at the ErrorBoundary
await page.route(/\/parent\/child-with-boundary\.data$/, (route) => {
route.fulfill({ status: 500, body: "CDN Error!" });
});
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-with-boundary");
await waitForAndAssert(
page,
app,
"#parent-error",
"Unable to decode turbo-stream response"
);
});
});
function runBoundaryTests() {
test("No errors", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-with-boundary");
await waitForAndAssert(page, app, "#child-data", "CHILD LOADER");
});
test("Throwing a Response to own boundary", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-with-boundary?type=response");
await waitForAndAssert(
page,
app,
"#child-error-response",
"418 Loader Response"
);
});
test("Throwing an Error to own boundary", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-with-boundary?type=error");
await waitForAndAssert(page, app, "#child-error", "Loader Error");
});
test("Throwing a render error to own boundary", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-with-boundary?type=render");
await waitForAndAssert(page, app, "#child-error", "Render Error");
});
test("Throwing a Response to parent boundary", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-without-boundary?type=response");
await waitForAndAssert(
page,
app,
"#parent-error-response",
"418 Loader Response"
);
});
test("Throwing an Error to parent boundary", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-without-boundary?type=error");
await waitForAndAssert(page, app, "#parent-error", "Loader Error");
});
test("Throwing a render error to parent boundary", async ({ page }) => {
let app = new PlaywrightFixture(appFixture, page);
await app.goto("/parent");
await app.clickLink("/parent/child-without-boundary?type=render");
await waitForAndAssert(page, app, "#parent-error", "Render Error");
});
}
});
// Shorthand util to wait for an element to appear before asserting it
async function waitForAndAssert(
page: Page,
app: PlaywrightFixture,
selector: string,
match: string
) {
await page.waitForSelector(selector);
expect(await app.getHtml(selector)).toMatch(match);
}