119 lines
4.3 KiB
TypeScript
119 lines
4.3 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import { calculateShoringRatio, type ShoringAssignment } from "../allocation/shoring-ratio.js";
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function make(resourceId: string, countryCode: string | null, hoursPerDay = 8, workingDays = 20): ShoringAssignment {
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return { resourceId, countryCode, hoursPerDay, workingDays };
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}
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describe("calculateShoringRatio", () => {
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it("returns zeros for empty assignments", () => {
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const r = calculateShoringRatio([]);
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expect(r.totalHours).toBe(0);
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expect(r.offshoreRatio).toBe(0);
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expect(r.isAboveThreshold).toBe(false);
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});
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it("100% German → 0% offshore", () => {
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const r = calculateShoringRatio([make("r1", "DE"), make("r2", "DE")]);
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expect(r.onshoreRatio).toBe(100);
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expect(r.offshoreRatio).toBe(0);
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expect(r.isAboveThreshold).toBe(false);
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});
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it("100% offshore → 100% offshore, above threshold", () => {
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const r = calculateShoringRatio([make("r1", "ES"), make("r2", "IN")]);
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expect(r.offshoreRatio).toBe(100);
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expect(r.isAboveThreshold).toBe(true);
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});
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it("50/50 mix → 50% offshore, below 55% threshold", () => {
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const r = calculateShoringRatio([make("r1", "DE"), make("r2", "ES")]);
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expect(r.offshoreRatio).toBe(50);
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expect(r.isAboveThreshold).toBe(false);
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});
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it("40% onshore / 60% offshore → above 55% threshold", () => {
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const assignments = [
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make("r1", "DE", 8, 20), // 160h
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make("r2", "DE", 8, 20), // 160h → 320h onshore
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make("r3", "ES", 8, 20), // 160h
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make("r4", "IN", 8, 20), // 160h
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make("r5", "IN", 8, 20), // 160h → 480h offshore
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];
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const r = calculateShoringRatio(assignments);
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expect(r.offshoreRatio).toBe(60);
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expect(r.isAboveThreshold).toBe(true);
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});
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it("custom threshold: 30% → 40% offshore is above", () => {
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const assignments = [
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make("r1", "DE", 8, 20), // 160h onshore
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make("r2", "DE", 8, 20), // 160h onshore → 320h
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make("r3", "ES", 4, 20), // 80h offshore
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make("r4", "IN", 4, 20), // 80h offshore → 160h
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];
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// Total 480h, offshore 160h = 33%
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const r = calculateShoringRatio(assignments, 30);
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expect(r.offshoreRatio).toBe(33);
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expect(r.isAboveThreshold).toBe(true);
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});
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it("resource without country counts as offshore", () => {
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const r = calculateShoringRatio([make("r1", "DE"), make("r2", null)]);
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expect(r.offshoreRatio).toBe(50);
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expect(r.unknownCount).toBe(1);
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expect(r.byCountry["UNKNOWN"]).toBeDefined();
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});
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it("country code is case-insensitive", () => {
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const r = calculateShoringRatio([make("r1", "de"), make("r2", "De")]);
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expect(r.onshoreRatio).toBe(100);
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expect(r.offshoreRatio).toBe(0);
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});
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it("custom onshore country code", () => {
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const r = calculateShoringRatio([make("r1", "ES"), make("r2", "DE")], 55, "ES");
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expect(r.onshoreCountryCode).toBe("ES");
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expect(r.onshoreHours).toBe(160); // r1 is onshore
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expect(r.offshoreHours).toBe(160); // r2 is offshore (DE is not onshore here)
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});
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it("byCountry breakdown is correct", () => {
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const r = calculateShoringRatio([
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make("r1", "DE", 8, 10),
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make("r2", "ES", 8, 10),
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make("r3", "ES", 4, 10),
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make("r4", "IN", 8, 10),
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]);
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expect(r.byCountry["DE"]!.resourceCount).toBe(1);
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expect(r.byCountry["ES"]!.resourceCount).toBe(2);
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expect(r.byCountry["IN"]!.resourceCount).toBe(1);
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expect(r.byCountry["DE"]!.hours).toBe(80);
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expect(r.byCountry["ES"]!.hours).toBe(120);
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expect(r.byCountry["IN"]!.hours).toBe(80);
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});
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it("exactly at threshold is above", () => {
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// 55% offshore = at threshold = isAboveThreshold true (>= not >)
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// Need 55/100 = 11/20 ratio
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const assignments = [
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make("r1", "DE", 9, 20), // 180h onshore
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make("r2", "ES", 11, 20), // 220h offshore
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];
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// Total 400h, offshore 220h = 55%
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const r = calculateShoringRatio(assignments);
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expect(r.offshoreRatio).toBe(55);
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expect(r.isAboveThreshold).toBe(true);
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});
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it("weighted by hours — FTE matters", () => {
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const r = calculateShoringRatio([
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make("r1", "DE", 8, 20), // 160h full-time onshore
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make("r2", "ES", 2, 20), // 40h part-time offshore
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]);
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// Total 200h, offshore 40h = 20%
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expect(r.offshoreRatio).toBe(20);
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expect(r.isAboveThreshold).toBe(false);
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});
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});
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