54 lines
1.9 KiB
JavaScript
54 lines
1.9 KiB
JavaScript
import { TestCase } from "./framework/test_case.js";
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import { ECONOMY, TAXES } from "../shared/data.js";
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import { HOURS_PER_YEAR } from "../shared/game_state.js";
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function config(overrides = {}) {
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return { ...ECONOMY, ...overrides };
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}
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export class EconomyTest extends TestCase {
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test_population_growth_scales_with_step() {
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const cfg = config({ basePopulationGrowthRate: 0.005 });
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const hourly = cfg.populationGrowthFactor(HOURS_PER_YEAR);
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const daily = cfg.populationGrowthFactor(HOURS_PER_YEAR, 24);
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this.assertApprox(daily, Math.pow(1 + hourly, 24) - 1, 1e-9);
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this.assertApprox(Math.pow(1 + hourly, HOURS_PER_YEAR) - 1, 0.005, 1e-6);
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}
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test_population_growth_zero_rate_is_zero() {
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const cfg = config({ basePopulationGrowthRate: 0 });
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this.assertEqual(cfg.populationGrowthFactor(HOURS_PER_YEAR, 24), 0);
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}
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test_population_growth_guards_invalid_period() {
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const cfg = config({ basePopulationGrowthRate: 0.005 });
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this.assertEqual(cfg.populationGrowthFactor(0), 0);
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this.assertEqual(cfg.populationGrowthFactor(HOURS_PER_YEAR, 0), 0);
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}
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test_production_capacity() {
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const cfg = config({ gdpPerProductionPoint: 100000000 });
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this.assertApprox(cfg.productionCapacity(1000000000), 10);
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this.assertApprox(cfg.productionCapacity(0), 0);
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}
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test_production_capacity_guards_divisor() {
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this.assertEqual(config({ gdpPerProductionPoint: 0 }).productionCapacity(1000), 0);
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}
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test_training_hours() {
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this.assertApprox(config({ gdpPerProductionPoint: 100 }).trainingHours(1000, 50), 5);
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}
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test_training_hours_without_capacity_is_zero() {
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this.assertEqual(config({ gdpPerProductionPoint: 0 }).trainingHours(1000, 50), 0);
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}
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test_trade_tax_defaults() {
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this.assertApprox(TAXES.defaultSales, 0.2);
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this.assertApprox(TAXES.defaultExport, 0.05);
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this.assertApprox(TAXES.defaultImport, 0.05);
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}
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}
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