mirror of
https://gitlab.com/lecarore/breakout71.git
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42 lines
1.2 KiB
TypeScript
42 lines
1.2 KiB
TypeScript
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import {getMajorityValue, sample, sumOfKeys} from "./game_utils";
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describe('getMajorityValue', ()=>{
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it('returns the most common string',()=>{
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expect(getMajorityValue(['1','1','2','2','3','2','3','2','2','1'])).toStrictEqual('2')
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})
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it('returns the only string',()=>{
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expect(getMajorityValue(['1'])).toStrictEqual('1')
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})
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it('returns nothing for empty array',()=>{
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expect(getMajorityValue([])).toStrictEqual(undefined)
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})
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})
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describe('sample', ()=>{
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it('returns a random pick from the array',()=>{
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expect(['1','2','3'].includes(sample(['1','2','3']))).toBeTruthy()
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})
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it('returns the only item if there is just one',()=>{
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expect(sample(['1'])).toStrictEqual('1')
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})
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it('returns nothing for empty array',()=>{
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expect(sample([])).toStrictEqual(undefined)
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})
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})
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describe('sumOfKeys', ()=>{
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it('returns the sum of the keys of an array',()=>{
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expect(sumOfKeys({a:1,b:2})).toEqual(3)
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})
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it('returns 0 for an empty object',()=>{
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expect(sumOfKeys({})).toEqual(0)
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})
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it('returns 0 for undefined',()=>{
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expect(sumOfKeys(undefined)).toEqual(0)
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})
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it('returns 0 for null',()=>{
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expect(sumOfKeys(null)).toEqual(0)
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})
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})
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