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14 lines
444 B
TypeScript
14 lines
444 B
TypeScript
import { cached } from "@app/cache";
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import { expect, test, vi } from "vitest";
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test("it caches undefined return values", async () => {
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// eslint-disable-next-line @typescript-eslint/no-unused-vars
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const inner = vi.fn(async (_: string) => undefined);
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const memoized = cached(inner, key => key);
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expect(await memoized("a")).toBe(undefined);
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expect(await memoized("a")).toBe(undefined);
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expect(inner).toHaveBeenCalledTimes(1);
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});
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