nortax-ts/dist/__tests__/tax-integration.test.js

Norwegian Tax Calculator - TypeScript Implementation

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const tax_1 = require("../tax");
const ENABLE_INTEGRATION_TESTS = process.env.ENABLE_INTEGRATION_TESTS === 'true';
(ENABLE_INTEGRATION_TESTS ? describe : describe.skip)('Tax Integration Tests', () => {
    jest.setTimeout(10000);
    describe('2024 Tax Table 7100 (Standard)', () => {
        const year = 2024;
        const table = '7100';
        it('should return correct monthly deduction for 600000 NOK annual wage', async () => {
            const tax = new tax_1.Tax(50000, // 600k NOK annual / 12 months
            table, 'Wage', 'Monthly', year);
            const deduction = await tax.getDeduction();
            expect(deduction).toBe(14774);
        });
        it('should return correct bi-weekly deduction for 600000 NOK annual wage', async () => {
            const tax = new tax_1.Tax(23077, // Approximate bi-weekly for 600k annual
            table, 'Wage', '2 weeks', year);
            const deduction = await tax.getDeduction();
            expect(deduction).toBe(6735);
        });
        it('should return correct weekly deduction for 600000 NOK annual wage', async () => {
            const tax = new tax_1.Tax(11538, // Approximate weekly for 600k annual
            table, 'Wage', '1 week', year);
            const deduction = await tax.getDeduction();
            expect(deduction).toBe(3365);
        });
    });
    describe('2024 Tax Table 7150 (Special)', () => {
        const year = 2024;
        const table = '7150';
        it('should return correct monthly deduction for 450000 NOK annual wage', async () => {
            const tax = new tax_1.Tax(37500, // 450k NOK annual / 12 months
            table, 'Wage', 'Monthly', year);
            const deduction = await tax.getDeduction();
            expect(deduction).toBe(8533);
        });
    });
    describe('2024 Pension Tax Table 6300', () => {
        const year = 2024;
        const table = '7105';
        it('should return correct monthly deduction for 300000 NOK annual pension', async () => {
            const tax = new tax_1.Tax(25000, // 300k NOK annual / 12 months
            table, 'Pension', 'Monthly', year);
            const deduction = await tax.getDeduction();
            expect(deduction).toBe(3282); // Interesting - might need to investigate why this returns 0
        });
    });
    describe('Whole Table Tests 2024', () => {
        it('should return correct tax brackets for table 7100', async () => {
            const tax = new tax_1.Tax(50000, '7100', 'Wage', 'Monthly', 2024);
            const table = await tax.getWholeTable();
            // Test specific brackets with actual values
            expect(table['30000']).toBe(6971);
            expect(table['40000']).toBe(10872);
            expect(table['50000']).toBe(14774);
        });
    });
    describe('Tax Table 8150 Tests', () => {
        const tableNumber = '8150';
        it('should throw error when trying to use table 8150 in 2024', () => {
            expect(() => new tax_1.Tax(50000, tableNumber, 'Wage', 'Monthly', 2024)).toThrow('Invalid tax table "8150" for year 2024');
        });
        it('should return correct monthly deduction for table 8150 in 2025', async () => {
            const tax = new tax_1.Tax(50000, tableNumber, 'Wage', 'Monthly', 2025);
            const taxTable = await tax.getWholeTable();
            expect(taxTable['50000']).toBe(11333);
        });
        it('should return correct deduction for specific 2025 scenario', async () => {
            const tax = new tax_1.Tax(99687.588, // Exact taxable income
            tableNumber, 'Wage', 'Monthly', 2025);
            const deduction = await tax.getDeduction();
            expect(deduction).toBe(36102); // Updated expected value from new API
        });
    });
});