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x/rambda/source/drop.spec.js

Faster and smaller alternative to Ramda
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import assert from 'assert'
import {drop} from './drop'
test('with array', () => { expect(drop(2)(['foo', 'bar', 'baz'])).toEqual(['baz']) expect(drop(3, ['foo', 'bar', 'baz'])).toEqual([]) expect(drop(4, ['foo', 'bar', 'baz'])).toEqual([])})
test('with string', () => { expect(drop(3, 'rambda')).toEqual('bda')})
test('with non-positive count', () => { expect(drop(0, [1, 2, 3])).toEqual([1, 2, 3]) expect(drop(-1, [1, 2, 3])).toEqual([1, 2, 3]) expect(drop(-Infinity, [1, 2, 3])).toEqual([1, 2, 3])})
test('should return copy', () => { const xs = [1, 2, 3]
assert.notStrictEqual(drop(0, xs), xs) assert.notStrictEqual(drop(-1, xs), xs)})