24 lines
1 KiB
TypeScript
24 lines
1 KiB
TypeScript
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import { describe, expect, it } from "vitest";
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import { nextSort, sortRows } from "./sort-rows";
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const rows = [
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{ title: "Emergence" },
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{ title: "Feedback" },
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{ title: "Requisite variety" },
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];
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describe("sortRows", () => {
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it("orders by the selected key and flips with the direction", () => {
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const ascending = sortRows(rows, { key: "title", dir: 1 }, (row, key) => row[key as "title"]);
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expect(ascending.map((row) => row.title)).toEqual(["Emergence", "Feedback", "Requisite variety"]);
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const descending = sortRows(rows, { key: "title", dir: -1 }, (row, key) => row[key as "title"]);
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expect(descending.map((row) => row.title)).toEqual(["Requisite variety", "Feedback", "Emergence"]);
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});
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it("toggles direction when the same key is chosen again", () => {
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expect(nextSort(undefined, "title")).toEqual({ key: "title", dir: 1 });
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expect(nextSort({ key: "title", dir: 1 }, "title")).toEqual({ key: "title", dir: -1 });
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expect(nextSort({ key: "title", dir: -1 }, "kindLabel")).toEqual({ key: "kindLabel", dir: 1 });
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});
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});
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