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https://github.com/Drop-OSS/drop.git
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4a2202b7d7
5 new test files in test/unit/, +31 tests, 57 total pass: - array.test.ts (10 tests): sum() — empty, positive, mixed, single, no-mutation. lastItem() — empty, single, multi, object refs. - tuple.test.ts (2 tests): x/y storage, toString format. - colors.test.ts (6 tests): getBarColor — 0/70/71/90/91/100 boundary cases. - utils.test.ts (5 tests): getPercentage — value/total, 0/total, >100%, div-by-zero (documents current Infinity behavior), fractional. - prioritylist.test.ts (8 tests): PriorityList — empty, insertion order, priority sort, pop, cache invalidation, find. PriorityListIndexed — index by property, remove from index on pop, empty-pop TypeError (pins current behavior; PR4 will add explicit guard). Coverage: - prioritylist.ts: 93.75% lines (was 0%) - utils/ (array/colors/tuple/utils): 94.73% lines - overall: 1.17% → 1.9% lines Refs plan at .opencode/plans/hyperplan-dep-tdd-coverage.md PR7. Co-authored-by: bot <ci@local>
46 lines
1.1 KiB
TypeScript
46 lines
1.1 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import { lastItem, sum } from "../../../server/utils/array";
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describe("sum", () => {
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it("returns 0 for an empty array", () => {
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expect(sum([])).toBe(0);
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});
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it("sums positive numbers", () => {
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expect(sum([1, 2, 3, 4])).toBe(10);
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});
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it("sums negative and positive mixed", () => {
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expect(sum([10, -5, 3])).toBe(8);
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});
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it("returns the single value for a one-element array", () => {
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expect(sum([42])).toBe(42);
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});
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it("does not mutate the input array", () => {
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const arr = [1, 2, 3];
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const snapshot = [...arr];
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sum(arr);
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expect(arr).toEqual(snapshot);
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});
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});
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describe("lastItem", () => {
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it("returns undefined for an empty array", () => {
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expect(lastItem([])).toBeUndefined();
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});
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it("returns the only element for a one-element array", () => {
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expect(lastItem(["only"])).toBe("only");
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});
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it("returns the last element of a multi-element array", () => {
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expect(lastItem([1, 2, 3])).toBe(3);
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});
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it("preserves object references", () => {
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const obj = { id: 7 };
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expect(lastItem([{ id: 1 }, obj])).toBe(obj);
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});
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});
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