mirror of
https://github.com/MBombeck/HealthLog.git
synced 2026-11-13 14:32:03 +00:00
Marc-André Bombeck
b40a963cb1
Add an optional explicit {from,to} range to the comparison and
changepoint reads, served over the same rollup tier the five fixed
trailing windows use (reach back to the lower bound, filter to the
span) — so a before-vs-after-a-date question is answerable without
recomputing analytics. Add a per-analyte lab trajectory read (latest to
recent history) over the existing lab resolver, page-bounded so a heavy
panel cannot balloon the response. Introduce an opaque, stable base64url
cursor helper that decodes any malformed or foreign token to the first
page rather than throwing.
37 lines
1.3 KiB
TypeScript
37 lines
1.3 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import { encodeOffsetCursor, decodeOffsetCursor } from "../pagination";
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describe("opaque cursor pagination", () => {
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it("round-trips an offset through encode → decode", () => {
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for (const offset of [0, 1, 8, 50, 200, 9999]) {
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expect(decodeOffsetCursor(encodeOffsetCursor(offset))).toBe(offset);
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}
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});
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it("encodes deterministically (stable token for the same offset)", () => {
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expect(encodeOffsetCursor(8)).toBe(encodeOffsetCursor(8));
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});
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it("emits an opaque token, not the raw number", () => {
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const cursor = encodeOffsetCursor(8);
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expect(cursor).not.toBe("8");
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expect(cursor).not.toContain("8");
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});
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it("degrades a missing / malformed / foreign cursor to the first page", () => {
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expect(decodeOffsetCursor(undefined)).toBe(0);
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expect(decodeOffsetCursor("")).toBe(0);
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expect(decodeOffsetCursor("not-base64!@#")).toBe(0);
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expect(
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decodeOffsetCursor(Buffer.from("[1,2,3]").toString("base64url")),
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).toBe(0);
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expect(decodeOffsetCursor(42 as unknown)).toBe(0);
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});
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it("clamps a negative or non-finite offset to zero", () => {
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expect(encodeOffsetCursor(-5)).toBe(encodeOffsetCursor(0));
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expect(encodeOffsetCursor(Number.NaN)).toBe(encodeOffsetCursor(0));
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});
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});
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