| 1 | import assert from "node:assert/strict"; |
| 2 | import { test } from "node:test"; |
| 3 | |
| 4 | import type { CostDay } from "@g1t/contracts"; |
| 5 | |
| 6 | import { |
| 7 | daySeries, |
| 8 | daysBetween, |
| 9 | marginPercent, |
| 10 | marginTone, |
| 11 | parseBucket, |
| 12 | parseCostSettings, |
| 13 | parseMapping, |
| 14 | parseRange, |
| 15 | percentLabel, |
| 16 | unitDollars, |
| 17 | } from "./costs.ts"; |
| 18 | |
| 19 | const day = (d: string, bucket: string, cf: number, own: number, value: number, cash: number): CostDay => ({ |
| 20 | day: d, |
| 21 | bucket, |
| 22 | cfCostMicros: cf, |
| 23 | ownCostMicros: own, |
| 24 | valueMicros: value, |
| 25 | cashMicros: cash, |
| 26 | }); |
| 27 | |
| 28 | test("every day of the range is there, even an empty one", () => { |
| 29 | assert.deepEqual(daysBetween("2026-09-29", "2026-10-02"), ["2026-09-29", "2026-09-30", "2026-10-01", "2026-10-02"]); |
| 30 | assert.deepEqual(daysBetween("2026-10-02", "2026-10-01"), []); |
| 31 | }); |
| 32 | |
| 33 | test("all of g1t is money in against every cost; a product is its value against its cost", () => { |
| 34 | const rows = [ |
| 35 | day("2026-10-01", "sandboxes", 2_000_000, 1_900_000, 2_400_000, 1_000_000), |
| 36 | day("2026-10-01", "platform", 500_000, 0, 20_000_000, 20_000_000), |
| 37 | // Models: no Cloudflare bill, g1t's own cost. |
| 38 | day("2026-10-01", "models", 0, 100_000, 120_000, 120_000), |
| 39 | ]; |
| 40 | const all = daySeries(rows, "2026-10-01", "2026-10-02", null); |
| 41 | assert.deepEqual(all, [ |
| 42 | { day: "2026-10-01", revenueMicros: 21_120_000, costMicros: 2_600_000 }, |
| 43 | { day: "2026-10-02", revenueMicros: 0, costMicros: 0 }, |
| 44 | ]); |
| 45 | const sandboxes = daySeries(rows, "2026-10-01", "2026-10-01", "sandboxes"); |
| 46 | assert.deepEqual(sandboxes, [{ day: "2026-10-01", revenueMicros: 2_400_000, costMicros: 2_000_000 }]); |
| 47 | }); |
| 48 | |
| 49 | test("margins read against the floor", () => { |
| 50 | assert.equal(marginPercent(1_200_000, 1_000_000)?.toFixed(2), "16.67"); |
| 51 | assert.equal(marginPercent(0, 10), null); |
| 52 | assert.equal(marginTone(-3, 10), "danger"); |
| 53 | assert.equal(marginTone(12, 10), "warn"); |
| 54 | assert.equal(marginTone(16.7, 10), "mint"); |
| 55 | assert.equal(marginTone(null, 10), undefined); |
| 56 | assert.equal(percentLabel(-4), "−4.0%"); |
| 57 | assert.equal(percentLabel(12.34, { signed: true }), "+12.3%"); |
| 58 | assert.equal(percentLabel(null), "—"); |
| 59 | }); |
| 60 | |
| 61 | test("unit costs keep the places they need", () => { |
| 62 | assert.equal(unitDollars(150_000), "$0.150"); |
| 63 | assert.equal(unitDollars(16.44), "$0.0000164"); |
| 64 | assert.equal(unitDollars(2_500_000), "$2.50"); |
| 65 | assert.equal(unitDollars(0), "$0"); |
| 66 | }); |
| 67 | |
| 68 | test("the range and product come from the address, within bounds", () => { |
| 69 | assert.equal(parseRange("7"), 7); |
| 70 | assert.equal(parseRange("365"), 30); |
| 71 | assert.equal(parseRange(null), 30); |
| 72 | assert.equal(parseBucket("git", ["git", "sandboxes"]), "git"); |
| 73 | assert.equal(parseBucket("nope", ["git"]), null); |
| 74 | }); |
| 75 | |
| 76 | const form = (entries: Record<string, string>) => { |
| 77 | const data = new FormData(); |
| 78 | for (const [key, value] of Object.entries(entries)) data.set(key, value); |
| 79 | return data; |
| 80 | }; |
| 81 | |
| 82 | test("the guardrails form is checked", () => { |
| 83 | const good = parseCostSettings( |
| 84 | form({ |
| 85 | autoApply: "on", |
| 86 | autoApplyPercent: "25", |
| 87 | noticeDays: "14", |
| 88 | marginFloorPercent: "10", |
| 89 | alertDays: "3", |
| 90 | anomalyFactor: "1", |
| 91 | minDailyCost: "0.10", |
| 92 | anomalyFloor: "1", |
| 93 | }), |
| 94 | ); |
| 95 | assert.ok(good.ok); |
| 96 | assert.equal(good.ok && good.value.minDailyCostMicros, 100_000); |
| 97 | assert.equal(good.ok && good.value.autoApply, true); |
| 98 | const off = parseCostSettings(form({ autoApplyPercent: "25", noticeDays: "14", marginFloorPercent: "10", alertDays: "3", anomalyFactor: "1", minDailyCost: "0", anomalyFloor: "1" })); |
| 99 | assert.ok(off.ok && !off.value.autoApply); |
| 100 | assert.equal(parseCostSettings(form({ autoApplyPercent: "250" })).ok, false); |
| 101 | assert.equal(parseCostSettings(form({ autoApplyPercent: "25", noticeDays: "1.5" })).ok, false); |
| 102 | }); |
| 103 | |
| 104 | test("a mapping names Cloudflare's product and meter and one of g1t's products", () => { |
| 105 | const mapped = parseMapping(form({ product: "Artifacts", meter: "", bucket: "git", priceMeter: "git_operations", ownMeter: "git_operations", scaleToOwn: "on", driftPercent: "15" })); |
| 106 | assert.deepEqual(mapped, { |
| 107 | ok: true, |
| 108 | value: { product: "artifacts", meter: "*", bucket: "git", priceMeter: "git_operations", ownMeter: "git_operations", scaleToOwn: true, driftPercent: 15, note: "" }, |
| 109 | }); |
| 110 | assert.deepEqual(parseMapping(form({ product: "r2", meter: "class_a", remove: "1" })), { ok: true, value: { product: "r2", meter: "class_a", remove: true } }); |
| 111 | assert.equal(parseMapping(form({ product: "r2", meter: "x y", bucket: "git" })).ok, false); |
| 112 | assert.equal(parseMapping(form({ product: "r2", meter: "*", bucket: "" })).ok, false); |
| 113 | assert.equal(parseMapping(form({ product: "r2", meter: "*", bucket: "git", driftPercent: "-1" })).ok, false); |
| 114 | }); |