formatter tests

apps/website/lib/formatters/CurrencyFormatter.test.ts

@@ -0,0 +1,76 @@
+import { describe, it, expect } from 'vitest';
+import { CurrencyFormatter } from './CurrencyFormatter';
+
+describe('CurrencyFormatter', () => {
+  describe('format', () => {
+    it('should format USD with dollar sign and commas', () => {
+      expect(CurrencyFormatter.format(1234.56, 'USD')).toBe('$1,234.56');
+      expect(CurrencyFormatter.format(1000000, 'USD')).toBe('$1,000,000.00');
+    });
+
+    it('should format EUR with euro sign and dots as thousands separator', () => {
+      expect(CurrencyFormatter.format(1234.56, 'EUR')).toBe('€1.234,56');
+      expect(CurrencyFormatter.format(1000000, 'EUR')).toBe('€1.000.000,00');
+    });
+
+    it('should format with custom currency symbol', () => {
+      expect(CurrencyFormatter.format(1234.56, 'GBP')).toBe('GBP 1,234.56');
+      expect(CurrencyFormatter.format(1234.56, 'JPY')).toBe('JPY 1,234.56');
+    });
+
+    it('should use USD as default currency', () => {
+      expect(CurrencyFormatter.format(1234.56)).toBe('$1,234.56');
+    });
+
+    it('should handle zero amount', () => {
+      expect(CurrencyFormatter.format(0, 'USD')).toBe('$0.00');
+      expect(CurrencyFormatter.format(0, 'EUR')).toBe('€0,00');
+    });
+
+    it('should handle negative amounts', () => {
+      expect(CurrencyFormatter.format(-1234.56, 'USD')).toBe('$-1,234.56');
+      expect(CurrencyFormatter.format(-1234.56, 'EUR')).toBe('€-1.234,56');
+    });
+
+    it('should handle amounts with many decimal places', () => {
+      expect(CurrencyFormatter.format(1234.5678, 'USD')).toBe('$1,234.57');
+      expect(CurrencyFormatter.format(1234.5678, 'EUR')).toBe('€1.234,57');
+    });
+  });
+
+  describe('formatCompact', () => {
+    it('should format USD with dollar sign and no decimals', () => {
+      expect(CurrencyFormatter.formatCompact(1234.56, 'USD')).toBe('$1,235');
+      expect(CurrencyFormatter.formatCompact(1000000, 'USD')).toBe('$1,000,000');
+    });
+
+    it('should format EUR with euro sign and dots as thousands separator', () => {
+      expect(CurrencyFormatter.formatCompact(1234.56, 'EUR')).toBe('€1.235');
+      expect(CurrencyFormatter.formatCompact(1000000, 'EUR')).toBe('€1.000.000');
+    });
+
+    it('should format with custom currency symbol', () => {
+      expect(CurrencyFormatter.formatCompact(1234.56, 'GBP')).toBe('GBP 1,235');
+      expect(CurrencyFormatter.formatCompact(1234.56, 'JPY')).toBe('JPY 1,235');
+    });
+
+    it('should use USD as default currency', () => {
+      expect(CurrencyFormatter.formatCompact(1234.56)).toBe('$1,235');
+    });
+
+    it('should handle zero amount', () => {
+      expect(CurrencyFormatter.formatCompact(0, 'USD')).toBe('$0');
+      expect(CurrencyFormatter.formatCompact(0, 'EUR')).toBe('€0');
+    });
+
+    it('should handle negative amounts', () => {
+      expect(CurrencyFormatter.formatCompact(-1234.56, 'USD')).toBe('$-1,235');
+      expect(CurrencyFormatter.formatCompact(-1234.56, 'EUR')).toBe('€-1.235');
+    });
+
+    it('should round amounts correctly', () => {
+      expect(CurrencyFormatter.formatCompact(1234.4, 'USD')).toBe('$1,234');
+      expect(CurrencyFormatter.formatCompact(1234.6, 'USD')).toBe('$1,235');
+    });
+  });
+});