20 lines
837 B
JavaScript
20 lines
837 B
JavaScript
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var test = require('tape');
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var Random = require('random-js');
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var random = new Random(Random.engines.mt19937().seed(0));
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var ss = require('../');
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function rng() { return random.real(0, 1); }
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test('sample', function(t) {
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t.deepEqual(ss.sample([], 0, rng), [], 'edge case - zero array');
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t.deepEqual(ss.sample([], 2, rng), [], 'edge case - zero array');
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t.deepEqual(ss.sample([1,2,3], 0, rng, 0), [], 'edge case - zero array');
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t.deepEqual(ss.sample([1,2,3], 1, rng), [1], 'edge case - sample of 1');
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t.deepEqual(ss.sample([1,2,3], 1, rng), [2]);
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t.deepEqual(ss.sample([1,2,3], 3, rng), [2,3,1]);
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t.deepEqual(ss.sample([1,2,3,4], 2, rng), [3,1]);
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t.deepEqual(ss.sample([1,2,3,4,6,7,8], 2, rng), [8,7]);
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t.deepEqual(ss.sample(['foo', 'bar'], 1, rng), ['foo'], 'non-number contents');
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t.end();
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});
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