36 lines
1.1 KiB
TypeScript
36 lines
1.1 KiB
TypeScript
import { describe, it, expect } from 'vitest';
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import { AverageStrengthOfFieldCalculator, DriverRating } from './StrengthOfFieldCalculator';
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describe('AverageStrengthOfFieldCalculator', () => {
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const calculator = new AverageStrengthOfFieldCalculator();
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it('should return null for empty list', () => {
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expect(calculator.calculate([])).toBeNull();
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});
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it('should return null if no valid ratings (>0)', () => {
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const ratings: DriverRating[] = [
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{ driverId: '1', rating: 0 },
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{ driverId: '2', rating: -100 },
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];
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expect(calculator.calculate(ratings)).toBeNull();
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});
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it('should calculate average of valid ratings', () => {
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const ratings: DriverRating[] = [
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{ driverId: '1', rating: 1000 },
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{ driverId: '2', rating: 2000 },
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{ driverId: '3', rating: 0 }, // Should be ignored
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];
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expect(calculator.calculate(ratings)).toBe(1500);
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});
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it('should round the result', () => {
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const ratings: DriverRating[] = [
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{ driverId: '1', rating: 1000 },
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{ driverId: '2', rating: 1001 },
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];
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expect(calculator.calculate(ratings)).toBe(1001); // (1000+1001)/2 = 1000.5 -> 1001
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});
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});
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