- Extract shared defaultReferencePeriod helper (src/utils/referencePeriod.ts) - useHighlights now reads ?refY=YYYY&refM=MM, defaults to previous month - getHighlights signature: (referenceYear, referenceMonth, ytdYear, windowDays, ...) - YTD tile pinned to Jan 1 of current civil year, independent of reference month - CompareReferenceMonthPicker surfaced on /reports/highlights - Hub highlights panel inherits the same default via useHighlights - useCartes and useCompare now delegate their default-period helpers to the shared util
528 lines
18 KiB
TypeScript
528 lines
18 KiB
TypeScript
import { describe, it, expect, vi, beforeEach } from "vitest";
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import {
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getCategoryOverTime,
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getHighlights,
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getCompareMonthOverMonth,
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getCompareYearOverYear,
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getCategoryZoom,
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} from "./reportService";
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// Mock the db module
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vi.mock("./db", () => ({
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getDb: vi.fn(),
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}));
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import { getDb } from "./db";
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const mockSelect = vi.fn();
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const mockDb = { select: mockSelect };
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beforeEach(() => {
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vi.mocked(getDb).mockResolvedValue(mockDb as never);
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mockSelect.mockReset();
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});
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describe("getCategoryOverTime", () => {
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it("builds query without WHERE clause when no filters are provided", async () => {
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// First call: top categories, second call: monthly breakdown
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mockSelect
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.mockResolvedValueOnce([]) // topCategories
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.mockResolvedValueOnce([]); // monthlyRows
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await getCategoryOverTime();
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const topCatSQL = mockSelect.mock.calls[0][0] as string;
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// No WHERE clause should appear (no filters at all)
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expect(topCatSQL).not.toContain("WHERE");
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});
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it("applies typeFilter via category type when provided", async () => {
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mockSelect
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.mockResolvedValueOnce([]) // topCategories
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.mockResolvedValueOnce([]); // monthlyRows
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await getCategoryOverTime(undefined, undefined, 50, undefined, "expense");
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const topCatSQL = mockSelect.mock.calls[0][0] as string;
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const topCatParams = mockSelect.mock.calls[0][1] as unknown[];
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expect(topCatSQL).toContain("COALESCE(c.type, 'expense')");
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expect(topCatSQL).toContain("WHERE");
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expect(topCatParams[0]).toBe("expense");
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});
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it("applies income typeFilter correctly", async () => {
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mockSelect
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.mockResolvedValueOnce([]) // topCategories
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.mockResolvedValueOnce([]); // monthlyRows
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await getCategoryOverTime("2025-01-01", "2025-06-30", 50, undefined, "income");
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const topCatSQL = mockSelect.mock.calls[0][0] as string;
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const topCatParams = mockSelect.mock.calls[0][1] as unknown[];
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expect(topCatSQL).toContain("COALESCE(c.type, 'expense') = $1");
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expect(topCatParams[0]).toBe("income");
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// Date params follow
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expect(topCatParams[1]).toBe("2025-01-01");
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expect(topCatParams[2]).toBe("2025-06-30");
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});
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it("applies date range filters", async () => {
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mockSelect
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.mockResolvedValueOnce([]) // topCategories
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.mockResolvedValueOnce([]); // monthlyRows
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await getCategoryOverTime("2025-01-01", "2025-12-31");
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const topCatSQL = mockSelect.mock.calls[0][0] as string;
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const topCatParams = mockSelect.mock.calls[0][1] as unknown[];
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expect(topCatSQL).toContain("t.date >= $1");
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expect(topCatSQL).toContain("t.date <= $2");
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expect(topCatParams).toEqual(["2025-01-01", "2025-12-31", 50]);
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});
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it("applies sourceId filter", async () => {
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mockSelect
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.mockResolvedValueOnce([]) // topCategories
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.mockResolvedValueOnce([]); // monthlyRows
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await getCategoryOverTime(undefined, undefined, 50, 3);
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const topCatSQL = mockSelect.mock.calls[0][0] as string;
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const topCatParams = mockSelect.mock.calls[0][1] as unknown[];
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expect(topCatSQL).toContain("t.source_id");
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expect(topCatParams[0]).toBe(3);
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});
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it("combines typeFilter, date range, and sourceId", async () => {
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mockSelect
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.mockResolvedValueOnce([]) // topCategories
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.mockResolvedValueOnce([]); // monthlyRows
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await getCategoryOverTime("2025-01-01", "2025-06-30", 10, 2, "expense");
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const topCatSQL = mockSelect.mock.calls[0][0] as string;
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const topCatParams = mockSelect.mock.calls[0][1] as unknown[];
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expect(topCatSQL).toContain("COALESCE(c.type, 'expense') = $1");
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expect(topCatSQL).toContain("t.date >= $2");
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expect(topCatSQL).toContain("t.date <= $3");
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expect(topCatSQL).toContain("t.source_id = $4");
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expect(topCatParams).toEqual(["expense", "2025-01-01", "2025-06-30", 2, 10]);
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});
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it("returns correct structure with categories, data, colors, and categoryIds", async () => {
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mockSelect
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.mockResolvedValueOnce([
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{ category_id: 1, category_name: "Food", category_color: "#ff0000", total: 500 },
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{ category_id: 2, category_name: "Transport", category_color: "#00ff00", total: 200 },
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])
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.mockResolvedValueOnce([
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{ month: "2025-01", category_id: 1, category_name: "Food", total: 300 },
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{ month: "2025-01", category_id: 2, category_name: "Transport", total: 100 },
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{ month: "2025-02", category_id: 1, category_name: "Food", total: 200 },
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{ month: "2025-02", category_id: 2, category_name: "Transport", total: 100 },
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]);
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const result = await getCategoryOverTime("2025-01-01", "2025-02-28", 50, undefined, "expense");
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expect(result.categories).toEqual(["Food", "Transport"]);
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expect(result.colors).toEqual({ Food: "#ff0000", Transport: "#00ff00" });
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expect(result.categoryIds).toEqual({ Food: 1, Transport: 2 });
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expect(result.data).toHaveLength(2);
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expect(result.data[0]).toEqual({ month: "2025-01", Food: 300, Transport: 100 });
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expect(result.data[1]).toEqual({ month: "2025-02", Food: 200, Transport: 100 });
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});
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it("groups non-top-N categories into Other", async () => {
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mockSelect
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.mockResolvedValueOnce([
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{ category_id: 1, category_name: "Food", category_color: "#ff0000", total: 500 },
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])
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.mockResolvedValueOnce([
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{ month: "2025-01", category_id: 1, category_name: "Food", total: 300 },
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{ month: "2025-01", category_id: 2, category_name: "Transport", total: 100 },
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{ month: "2025-01", category_id: 3, category_name: "Entertainment", total: 50 },
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]);
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const result = await getCategoryOverTime("2025-01-01", "2025-01-31", 1, undefined, "expense");
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expect(result.categories).toEqual(["Food", "Other"]);
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expect(result.colors["Other"]).toBe("#9ca3af");
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expect(result.data[0]).toEqual({ month: "2025-01", Food: 300, Other: 150 });
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});
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});
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describe("getHighlights", () => {
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// Reference month = March 2026, YTD year = 2026, today = 2026-04-14.
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const REF_YEAR = 2026;
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const REF_MONTH = 3;
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const YTD_YEAR = 2026;
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const TODAY = new Date(2026, 3, 14); // April 14, 2026 (month is 0-based here)
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const TODAY_STR = "2026-04-14";
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function queueEmpty(n: number) {
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for (let i = 0; i < n; i++) {
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mockSelect.mockResolvedValueOnce([]);
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}
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}
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it("computes windows and returns zeroed data on an empty profile", async () => {
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queueEmpty(5); // currentBalance, ytd, series, movers, recent
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const result = await getHighlights(REF_YEAR, REF_MONTH, YTD_YEAR, 30, 5, 10, TODAY);
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expect(result.currentMonth).toBe("2026-03");
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expect(result.netBalanceCurrent).toBe(0);
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expect(result.netBalanceYtd).toBe(0);
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expect(result.monthlyBalanceSeries).toHaveLength(12);
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// 12 months ending at the reference month (March 2026), inclusive.
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expect(result.monthlyBalanceSeries[11].month).toBe("2026-03");
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expect(result.monthlyBalanceSeries[0].month).toBe("2025-04");
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expect(result.topMovers).toEqual([]);
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expect(result.topTransactions).toEqual([]);
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});
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it("parameterises every query with no inlined strings", async () => {
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queueEmpty(5);
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await getHighlights(REF_YEAR, REF_MONTH, YTD_YEAR, 60, 5, 10, TODAY);
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for (const call of mockSelect.mock.calls) {
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const sql = call[0] as string;
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const params = call[1] as unknown[];
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expect(sql).not.toContain(`'${TODAY_STR}'`);
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expect(Array.isArray(params)).toBe(true);
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}
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// Reference month range
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const currentParams = mockSelect.mock.calls[0][1] as unknown[];
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expect(currentParams[0]).toBe("2026-03-01");
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expect(currentParams[1]).toBe("2026-03-31");
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// YTD spans Jan 1 of ytdYear → today (independent of reference month).
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const ytdParams = mockSelect.mock.calls[1][1] as unknown[];
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expect(ytdParams[0]).toBe("2026-01-01");
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expect(ytdParams[1]).toBe(TODAY_STR);
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});
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it("uses a 60-day window ending today for top transactions when requested", async () => {
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queueEmpty(5);
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await getHighlights(REF_YEAR, REF_MONTH, YTD_YEAR, 60, 5, 10, TODAY);
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const recentParams = mockSelect.mock.calls[4][1] as unknown[];
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// 60-day window ending today (2026-04-14): start = 2026-04-14 - 59 days = 2026-02-14.
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expect(recentParams[0]).toBe("2026-02-14");
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expect(recentParams[1]).toBe(TODAY_STR);
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expect(recentParams[2]).toBe(10);
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});
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it("computes top movers against the reference month's previous month", async () => {
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queueEmpty(3); // current balance, ytd, series
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mockSelect
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.mockResolvedValueOnce([
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{
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category_id: 1,
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category_name: "Restaurants",
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category_color: "#f97316",
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current_total: 240,
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previous_total: 200,
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},
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])
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.mockResolvedValueOnce([]); // recent
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await getHighlights(REF_YEAR, REF_MONTH, YTD_YEAR, 30, 5, 10, TODAY);
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const moversParams = mockSelect.mock.calls[3][1] as unknown[];
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// Reference month = March 2026, previous = February 2026.
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expect(moversParams[0]).toBe("2026-03-01");
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expect(moversParams[1]).toBe("2026-03-31");
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expect(moversParams[2]).toBe("2026-02-01");
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expect(moversParams[3]).toBe("2026-02-28");
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});
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it("wraps January reference month back to December of the previous year for top movers", async () => {
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queueEmpty(5);
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await getHighlights(2026, 1, 2026, 30, 5, 10, new Date(2026, 0, 10));
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const moversParams = mockSelect.mock.calls[3][1] as unknown[];
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expect(moversParams[0]).toBe("2026-01-01");
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expect(moversParams[1]).toBe("2026-01-31");
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expect(moversParams[2]).toBe("2025-12-01");
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expect(moversParams[3]).toBe("2025-12-31");
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});
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it("computes deltaAbs and deltaPct from movers rows", async () => {
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mockSelect
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.mockResolvedValueOnce([{ net: -500 }]) // current balance
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.mockResolvedValueOnce([{ net: -1800 }]) // ytd
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.mockResolvedValueOnce([
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{ month: "2026-03", net: -500 },
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{ month: "2026-02", net: -400 },
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]) // series
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.mockResolvedValueOnce([
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{
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category_id: 1,
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category_name: "Restaurants",
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category_color: "#f97316",
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current_total: 240,
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previous_total: 200,
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},
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{
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category_id: 2,
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category_name: "Groceries",
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category_color: "#10b981",
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current_total: 85,
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previous_total: 170,
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},
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])
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.mockResolvedValueOnce([]); // recent
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const result = await getHighlights(REF_YEAR, REF_MONTH, YTD_YEAR, 30, 5, 10, TODAY);
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expect(result.netBalanceCurrent).toBe(-500);
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expect(result.netBalanceYtd).toBe(-1800);
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expect(result.topMovers).toHaveLength(2);
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expect(result.topMovers[0]).toMatchObject({
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categoryName: "Restaurants",
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currentAmount: 240,
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previousAmount: 200,
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deltaAbs: 40,
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});
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expect(result.topMovers[0].deltaPct).toBeCloseTo(20, 4);
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expect(result.topMovers[1].deltaAbs).toBe(-85);
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expect(result.topMovers[1].deltaPct).toBeCloseTo(-50, 4);
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});
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it("returns deltaPct=null when previous month total is zero", async () => {
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mockSelect
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.mockResolvedValueOnce([{ net: 0 }])
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.mockResolvedValueOnce([{ net: 0 }])
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.mockResolvedValueOnce([])
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.mockResolvedValueOnce([
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{
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category_id: 3,
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category_name: "New expense",
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category_color: "#3b82f6",
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current_total: 120,
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previous_total: 0,
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},
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])
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.mockResolvedValueOnce([]);
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const result = await getHighlights(REF_YEAR, REF_MONTH, YTD_YEAR, 30, 5, 10, TODAY);
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expect(result.topMovers[0].deltaPct).toBeNull();
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expect(result.topMovers[0].deltaAbs).toBe(120);
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});
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});
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describe("getCompareMonthOverMonth", () => {
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it("passes monthly and cumulative boundaries as parameters", async () => {
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mockSelect.mockResolvedValueOnce([]);
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await getCompareMonthOverMonth(2026, 4);
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expect(mockSelect).toHaveBeenCalledTimes(1);
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const sql = mockSelect.mock.calls[0][0] as string;
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const params = mockSelect.mock.calls[0][1] as unknown[];
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expect(sql).toContain("$1");
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expect(sql).toContain("$8");
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// Monthly current ($1, $2), monthly previous ($3, $4),
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// cumulative current Jan→ref ($5, $6), cumulative previous Jan→prev ($7, $8).
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expect(params).toEqual([
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"2026-04-01", "2026-04-30",
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"2026-03-01", "2026-03-31",
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"2026-01-01", "2026-04-30",
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"2026-01-01", "2026-03-31",
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]);
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expect(sql).not.toContain("'2026");
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});
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it("wraps to december of previous year when target month is january", async () => {
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mockSelect.mockResolvedValueOnce([]);
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await getCompareMonthOverMonth(2026, 1);
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const params = mockSelect.mock.calls[0][1] as unknown[];
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// Cumulative-previous window lives entirely in 2025 (Jan → Dec), since the
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// previous month (Dec 2025) belongs to the prior calendar year.
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expect(params).toEqual([
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"2026-01-01", "2026-01-31",
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"2025-12-01", "2025-12-31",
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"2026-01-01", "2026-01-31",
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"2025-01-01", "2025-12-31",
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]);
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});
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it("converts raw rows into CategoryDelta with monthly and cumulative deltas", async () => {
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mockSelect.mockResolvedValueOnce([
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{
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category_id: 1,
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category_name: "Groceries",
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category_color: "#10b981",
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month_current_total: 500,
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month_previous_total: 400,
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cumulative_current_total: 2000,
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cumulative_previous_total: 1500,
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},
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{
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category_id: 2,
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category_name: "Restaurants",
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category_color: "#f97316",
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month_current_total: 120,
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month_previous_total: 0,
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cumulative_current_total: 300,
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cumulative_previous_total: 180,
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},
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]);
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const result = await getCompareMonthOverMonth(2026, 4);
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expect(result).toHaveLength(2);
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expect(result[0]).toMatchObject({
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categoryName: "Groceries",
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currentAmount: 500,
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previousAmount: 400,
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deltaAbs: 100,
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cumulativeCurrentAmount: 2000,
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cumulativePreviousAmount: 1500,
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cumulativeDeltaAbs: 500,
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});
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expect(result[0].deltaPct).toBeCloseTo(25, 4);
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expect(result[0].cumulativeDeltaPct).toBeCloseTo((500 / 1500) * 100, 4);
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expect(result[1].deltaPct).toBeNull(); // monthly previous = 0
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expect(result[1].cumulativeDeltaPct).toBeCloseTo(((300 - 180) / 180) * 100, 4);
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});
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it("yields null deltaPct for both blocks when previous is zero", async () => {
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mockSelect.mockResolvedValueOnce([
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{
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category_id: 3,
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category_name: "New",
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category_color: "#3b82f6",
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month_current_total: 50,
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month_previous_total: 0,
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cumulative_current_total: 80,
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cumulative_previous_total: 0,
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},
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]);
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const result = await getCompareMonthOverMonth(2026, 4);
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expect(result[0].deltaPct).toBeNull();
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expect(result[0].cumulativeDeltaPct).toBeNull();
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expect(result[0].deltaAbs).toBe(50);
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expect(result[0].cumulativeDeltaAbs).toBe(80);
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});
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});
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describe("getCompareYearOverYear", () => {
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it("compares a single month YoY and the YTD window through that month", async () => {
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mockSelect.mockResolvedValueOnce([]);
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await getCompareYearOverYear(2026, 4);
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const params = mockSelect.mock.calls[0][1] as unknown[];
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expect(params).toEqual([
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"2026-04-01", "2026-04-30",
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"2025-04-01", "2025-04-30",
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"2026-01-01", "2026-04-30",
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"2025-01-01", "2025-04-30",
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]);
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});
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it("defaults to december when no reference month is supplied", async () => {
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mockSelect.mockResolvedValueOnce([]);
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await getCompareYearOverYear(2026);
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const params = mockSelect.mock.calls[0][1] as unknown[];
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expect(params).toEqual([
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"2026-12-01", "2026-12-31",
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"2025-12-01", "2025-12-31",
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"2026-01-01", "2026-12-31",
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"2025-01-01", "2025-12-31",
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]);
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});
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it("populates both blocks for a YoY row", async () => {
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mockSelect.mockResolvedValueOnce([
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{
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category_id: 1,
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category_name: "Groceries",
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category_color: "#10b981",
|
|
month_current_total: 600,
|
|
month_previous_total: 400,
|
|
cumulative_current_total: 2500,
|
|
cumulative_previous_total: 1600,
|
|
},
|
|
]);
|
|
|
|
const result = await getCompareYearOverYear(2026, 4);
|
|
|
|
expect(result[0]).toMatchObject({
|
|
currentAmount: 600,
|
|
previousAmount: 400,
|
|
deltaAbs: 200,
|
|
cumulativeCurrentAmount: 2500,
|
|
cumulativePreviousAmount: 1600,
|
|
cumulativeDeltaAbs: 900,
|
|
});
|
|
expect(result[0].deltaPct).toBeCloseTo(50, 4);
|
|
expect(result[0].cumulativeDeltaPct).toBeCloseTo((900 / 1600) * 100, 4);
|
|
});
|
|
});
|
|
|
|
describe("getCategoryZoom", () => {
|
|
it("uses a bounded recursive CTE when including subcategories", async () => {
|
|
mockSelect
|
|
.mockResolvedValueOnce([]) // transactions
|
|
.mockResolvedValueOnce([{ rollup: 0 }]) // rollup
|
|
.mockResolvedValueOnce([]) // byChild
|
|
.mockResolvedValueOnce([]); // evolution
|
|
|
|
await getCategoryZoom(42, "2026-01-01", "2026-12-31", true);
|
|
|
|
const txSql = mockSelect.mock.calls[0][0] as string;
|
|
expect(txSql).toContain("WITH RECURSIVE cat_tree");
|
|
expect(txSql).toContain("WHERE ct.depth < 5");
|
|
const txParams = mockSelect.mock.calls[0][1] as unknown[];
|
|
expect(txParams).toEqual([42, "2026-01-01", "2026-12-31"]);
|
|
});
|
|
|
|
it("terminates on a cyclic category tree because of the depth cap", async () => {
|
|
// Simulate a cyclic parent_id chain. Since the mocked db.select simply
|
|
// returns our canned values, the real cycle guard (depth < 5) is what we
|
|
// can assert: the CTE must include the bound.
|
|
mockSelect
|
|
.mockResolvedValueOnce([]) // transactions
|
|
.mockResolvedValueOnce([{ rollup: 0 }]) // rollup
|
|
.mockResolvedValueOnce([]) // byChild
|
|
.mockResolvedValueOnce([]); // evolution
|
|
|
|
await expect(
|
|
getCategoryZoom(1, "2026-01-01", "2026-01-31", true),
|
|
).resolves.toBeDefined();
|
|
|
|
// Every recursive query sent must contain the depth guard.
|
|
for (const call of mockSelect.mock.calls) {
|
|
const sql = call[0] as string;
|
|
if (sql.includes("cat_tree")) {
|
|
expect(sql).toContain("ct.depth < 5");
|
|
}
|
|
}
|
|
});
|
|
|
|
it("issues a direct-only query when includeSubcategories is false", async () => {
|
|
mockSelect
|
|
.mockResolvedValueOnce([]) // transactions
|
|
.mockResolvedValueOnce([{ rollup: 0 }]); // rollup — no byChild / evolution recursive here
|
|
// evolution is still queried with categoryId = direct
|
|
mockSelect.mockResolvedValueOnce([]);
|
|
|
|
await getCategoryZoom(7, "2026-01-01", "2026-12-31", false);
|
|
|
|
const txSql = mockSelect.mock.calls[0][0] as string;
|
|
expect(txSql).not.toContain("cat_tree");
|
|
expect(txSql).toContain("t.category_id = $1");
|
|
});
|
|
});
|