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104 lines
3.6 KiB
TypeScript
104 lines
3.6 KiB
TypeScript
/**
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* Every error display goes through the one helper that shows an error id.
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*
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* A self-hoster reporting a failure needs the id the operator finds it by. The
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* web shows it on a server failure with a copy button, through two doors only:
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*
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* - toasts: `showErrorToast` (`src/lib/errors/error-toast.tsx`), which adds
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* the id when its `cause` is a 5xx and is otherwise exactly `toast.error`;
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* - error boundaries: `ErrorDetails` / `ErrorIdLine`, or `errorIdOf` for the
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* root boundary that renders without any provider.
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*
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* A raw `toast.error(` anywhere else is a toast that can never carry the id,
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* and a route boundary that skips the helper is a crash screen without it.
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*/
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import { readFileSync } from "node:fs";
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import { join } from "node:path";
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import { describe, expect, it } from "vitest";
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import { walkSourceFiles } from "./helpers/source-files";
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const SRC = join(process.cwd(), "src");
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const HELPER = "lib/errors/error-toast.tsx";
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/** Whitespace-tolerant: `toast.error(`, `toast .error (`, `toast\n.error(`. */
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const RAW_TOAST_ERROR = /\btoast\s*\.\s*error\s*\(/g;
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const HELPER_CALL = /\bshowErrorToast\s*\(/g;
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/**
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* Route boundaries that deliberately show no error id, with the reason. Each
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* entry is a decision, not a convenience.
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*/
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const BOUNDARY_EXEMPT: Readonly<Record<string, string>> = {
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// The clinician share view is opened by someone outside the instance, with
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// no account and no way to reach its operator; it shows a retry and nothing
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// a probe could learn from, by design (see the file's header).
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"app/c/error.tsx": "public share view, no operator relationship",
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};
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const files = walkSourceFiles(SRC, { floor: 2500 }).filter(
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(rel) =>
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!rel.includes("__tests__/") &&
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!/\.test\.tsx?$/.test(rel) &&
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!rel.startsWith("generated/"),
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);
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function read(rel: string): string {
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return readFileSync(join(SRC, rel), "utf8");
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}
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describe("error display helper guard", () => {
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it("finds the helper's own toast.error, so the matcher works", () => {
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const own = read(HELPER).match(RAW_TOAST_ERROR) ?? [];
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expect(own.length).toBeGreaterThan(0);
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});
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it("allows no toast.error outside the helper", () => {
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const offenders = files
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.filter((rel) => rel !== HELPER)
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.filter((rel) => (read(rel).match(RAW_TOAST_ERROR) ?? []).length > 0)
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.sort();
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expect(offenders).toEqual([]);
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});
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it("routes the app's error toasts through showErrorToast", () => {
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const calls = files.reduce(
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(n, rel) => n + (read(rel).match(HELPER_CALL) ?? []).length,
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0,
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);
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// 200 call sites when the helper landed; a count far below it means the
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// matcher or the walk stopped seeing them.
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expect(calls).toBeGreaterThan(180);
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});
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it("renders every route error boundary through the error id helper", () => {
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const boundaries = files.filter((rel) =>
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/^app\/(.*\/)?(error|global-error)\.tsx$/.test(rel),
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);
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expect(boundaries.length).toBeGreaterThanOrEqual(3);
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const missing = boundaries
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.filter((rel) => !(rel in BOUNDARY_EXEMPT))
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.filter((rel) => {
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const source = read(rel);
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return !(
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/<ErrorDetails\b/.test(source) ||
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/<ErrorIdLine\b/.test(source) ||
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/\berrorIdOf\s*\(/.test(source)
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);
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});
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expect(missing).toEqual([]);
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for (const rel of Object.keys(BOUNDARY_EXEMPT)) {
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expect(boundaries, `${rel} is exempt but no longer exists`).toContain(
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rel,
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);
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}
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});
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it("shows the id in the shared boundary panel", () => {
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const source = read("components/error-details.tsx");
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expect(source).toMatch(/<ErrorIdLine\b/);
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expect(source).toMatch(/\berrorIdOf\s*\(/);
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});
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});
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