Files
siftlode/frontend/src/lib/useDebounced.dom.test.ts
T
peter 471846d784 build(frontend): close the lint gaps the E32 audit measured
eslint now also enforces:
- the React Compiler diagnostics that `recommended` leaves out (todo,
  memo-dependencies and ten zero-hit tripwires);
- a description on every suppression, and no blanket disables;
- no focused or skipped tests (vitest and playwright);
- the typed pair no-floating-promises and no-deprecated.

Lint also covers e2e/ and the TypeScript build configs, which `eslint .`
had been skipping in silence.

Every hit is fixed or suppressed inline with a named reason:
- The 31 try statements the compiler cannot lower yet carry a suppression
  until S3 rewrites them. Five other compiler skips were plain fixes:
  a module counter bumped inside a hook, a ref read in a default
  parameter, and a local named like the <section> it renders.
- The real defects behind floating promises are fixed. ChatDock threw at
  nobody when the device key store could not be opened. VideoEditor's
  play() rejection went unhandled. loadYouTubeApi never rejected, so a
  blocked IFrame API left the player on an empty stage forever; it now
  fails on a script error or after 15 s, shows its own error with the
  way out, and lets the next open try again.
- MutableRefObject, FormEvent and lucide's deprecated brand icon are
  replaced. The YouTube glyph now lives in lib/brandIcons.
- The lint-probe harness lets its virtual file names into TypeScript's
  default project, so the contract tests still run the real config.
2026-10-03 16:34:20 +02:00

40 lines
1.1 KiB
TypeScript

// @vitest-environment jsdom
import { afterEach, describe, expect, it, vi } from "vitest";
import { act, renderHook } from "@testing-library/react";
import { useDebounced } from "./useDebounced";
afterEach(() => {
vi.useRealTimers();
});
describe("useDebounced", () => {
it("hands a value on once it stopped changing for the delay", () => {
vi.useFakeTimers();
const { result, rerender } = renderHook(({ v }) => useDebounced(v, 300), {
initialProps: { v: "a" },
});
rerender({ v: "ab" });
expect(result.current).toBe("a");
act(() => {
vi.advanceTimersByTime(300);
});
expect(result.current).toBe("ab");
});
it("takes the value at once when `settle` changes — a jump, not typing", () => {
vi.useFakeTimers();
const { result, rerender } = renderHook(({ v, s }) => useDebounced(v, 300, s), {
initialProps: { v: "", s: 0 },
});
rerender({ v: "boom", s: 1 });
expect(result.current).toBe("boom");
rerender({ v: "boomx", s: 1 });
expect(result.current).toBe("boom");
act(() => {
vi.advanceTimersByTime(300);
});
expect(result.current).toBe("boomx");
});
});