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39 lines
885 B
39 lines
885 B
3 years ago
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import {
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limit,
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trimAfterFirstMatch,
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startsWith,
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endsWith
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} from './util.js'
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describe('findNumbers/util', () =>
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{
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it('should generate regexp limit', () =>
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{
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let thrower = () => limit(1, 0)
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thrower.should.throw()
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thrower = () => limit(-1, 1)
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thrower.should.throw()
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thrower = () => limit(0, 0)
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thrower.should.throw()
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})
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it('should trimAfterFirstMatch', () =>
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{
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trimAfterFirstMatch(/\d/, 'abc123').should.equal('abc')
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trimAfterFirstMatch(/\d/, 'abc').should.equal('abc')
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})
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it('should determine if a string starts with a substring', () =>
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{
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startsWith('𐍈123', '𐍈').should.equal(true)
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startsWith('1𐍈', '𐍈').should.equal(false)
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})
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it('should determine if a string ends with a substring', () =>
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{
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endsWith('123𐍈', '𐍈').should.equal(true)
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endsWith('𐍈1', '𐍈').should.equal(false)
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})
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})
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