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jubnl
54 lines
2.1 KiB
TypeScript
54 lines
2.1 KiB
TypeScript
import { toIsoCurrency } from '../../../../src/nest/llm-parse/currency-code';
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import { describe, it, expect } from 'vitest';
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describe('toIsoCurrency', () => {
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it('keeps an ISO 4217 code in any case and spacing', () => {
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expect(toIsoCurrency('EUR')).toBe('EUR');
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expect(toIsoCurrency('eur')).toBe('EUR');
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expect(toIsoCurrency(' chf ')).toBe('CHF');
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expect(toIsoCurrency('ALL')).toBe('ALL');
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});
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it('reads a value that starts with a real code as that code (#2477)', () => {
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expect(toIsoCurrency('EURials')).toBe('EUR');
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expect(toIsoCurrency('Euros')).toBe('EUR');
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expect(toIsoCurrency('EUR 89,35')).toBe('EUR');
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});
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it('maps a currency symbol that stands alone', () => {
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expect(toIsoCurrency('€')).toBe('EUR');
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expect(toIsoCurrency('£')).toBe('GBP');
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expect(toIsoCurrency('¥')).toBe('JPY');
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expect(toIsoCurrency(' $ ')).toBe('USD');
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});
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it('answers undefined for anything that is not a currency it can name', () => {
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// The lek is ALL; LEK is no code, and its prefix is none either.
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expect(toIsoCurrency('LEK')).toBeUndefined();
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expect(toIsoCurrency('XYZ')).toBeUndefined();
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// A dollar with a country in front is not guessed as USD.
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expect(toIsoCurrency('CA$')).toBeUndefined();
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expect(toIsoCurrency('US$')).toBeUndefined();
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expect(toIsoCurrency('€€')).toBeUndefined();
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expect(toIsoCurrency('')).toBeUndefined();
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expect(toIsoCurrency(' ')).toBeUndefined();
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});
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it('answers undefined for a value that is not a string', () => {
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expect(toIsoCurrency(null)).toBeUndefined();
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expect(toIsoCurrency(undefined)).toBeUndefined();
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expect(toIsoCurrency(978)).toBeUndefined();
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expect(toIsoCurrency({ code: 'EUR' })).toBeUndefined();
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});
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it('settles for the shape of a code when the runtime lists no currencies', () => {
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const none = new Set<string>();
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expect(toIsoCurrency('eur', none)).toBe('EUR');
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expect(toIsoCurrency('EURials', none)).toBe('EUR');
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expect(toIsoCurrency('XYZ', none)).toBe('XYZ');
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expect(toIsoCurrency('€', none)).toBe('EUR');
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expect(toIsoCurrency('CA$', none)).toBeUndefined();
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});
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});
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