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30 lines
1.1 KiB
TypeScript
30 lines
1.1 KiB
TypeScript
// did I overenginner these tests?
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import { percentage } from "../src/index";
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import { describe, it, expect } from 'vitest';
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describe('percentage', () => {
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it('should return 50% when 1 is half of 2', () => {
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expect(percentage(1, 2)).toBe(50);
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});
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it('should return 0% when 0 is half of 2', () => {
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expect(percentage(0, 2)).toBe(0);
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});
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it('should return 100% when 2 is half of 2', () => {
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expect(percentage(2, 2)).toBe(100);
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});
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it('should return 100% when 2 is half of 1', () => {
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expect(percentage(2, 1)).toBe(100);
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});
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it('should return 200% when 2 is half of 1 and allowNumNot100 is true', () => {
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expect(percentage(2, 1, true)).toBe(200);
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})
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it('should throw an error when total is 0', () => {
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expect(() => percentage(1, 0)).toThrow();
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});
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it('should throw an error when partial is negative', () => {
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expect(() => percentage(-1, 2)).toThrow();
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});
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it('should throw an error when total is negative', () => {
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expect(() => percentage(1, -2)).toThrow();
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});
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}) |