Carlos Florêncio
56 lines
1.6 KiB
TypeScript
56 lines
1.6 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { compareTasksByCreatedDesc } from "./task-order";
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describe("compareTasksByCreatedDesc", () => {
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it("sorts newer created tasks first", () => {
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const tasks = [
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{ id: "old", createdAt: "2026-05-01T10:00:00Z" },
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{ id: "new", createdAt: "2026-05-02T10:00:00Z" },
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];
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expect([...tasks].sort(compareTasksByCreatedDesc).map((task) => task.id)).toEqual([
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"new",
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"old",
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]);
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});
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it("sorts tasks without createdAt after dated tasks", () => {
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const tasks = [
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{ id: "missing" },
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{ id: "old", createdAt: "2026-05-01T10:00:00Z" },
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{ id: "new", createdAt: "2026-05-02T10:00:00Z" },
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];
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expect([...tasks].sort(compareTasksByCreatedDesc).map((task) => task.id)).toEqual([
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"new",
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"old",
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"missing",
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]);
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});
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it("sorts by actual timestamp when ISO offsets differ", () => {
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const tasks = [
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{ id: "later-offset", createdAt: "2026-05-02T09:30:00-04:00" },
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{ id: "earlier-zulu", createdAt: "2026-05-02T13:00:00Z" },
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];
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expect([...tasks].sort(compareTasksByCreatedDesc).map((task) => task.id)).toEqual([
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"later-offset",
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"earlier-zulu",
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]);
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});
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it("keeps equal missing createdAt tasks stable", () => {
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const tasks: Array<{ id: string; createdAt?: string }> = [{ id: "first" }, { id: "second" }];
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expect([...tasks].sort(compareTasksByCreatedDesc).map((task) => task.id)).toEqual([
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"first",
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"second",
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]);
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});
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it("returns 0 when both tasks are missing createdAt", () => {
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expect(compareTasksByCreatedDesc({}, {})).toBe(0);
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});
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});
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