Rushil Perera
1140ffa8b8
- migrate package management to pnpm - migrate test suite to vitest - also remove Anify integration
46 lines
968 B
TypeScript
46 lines
968 B
TypeScript
import { describe, expect, it } from "vitest";
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import { lazy } from "./lazy";
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describe("lazy", () => {
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it("lazy value returned when get is called", () => {
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const value = lazy(() => "value");
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expect(value.get()).toBe("value");
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});
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it("lazy function not called if get isn't called", () => {
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let setValue = false;
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lazy(() => {
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setValue = true;
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return "value";
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});
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expect(setValue).toBe(false);
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});
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it("lazy function called if get is called", () => {
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let setValue = false;
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lazy(() => {
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setValue = true;
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return "value";
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}).get();
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expect(setValue).toBe(true);
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});
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it("lazy function called only once if get is called multiple times", () => {
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let count = 0;
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const value = lazy(() => {
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count++;
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return "value";
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});
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const NUM_TIMES_CALLED = 1_000_000;
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for (let i = 0; i < NUM_TIMES_CALLED; i++) {
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value.get();
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}
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expect(count).toBe(1);
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});
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});
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