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16 lines
584 B
JavaScript
16 lines
584 B
JavaScript
// test factorial
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var assert = require('assert');
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var math = require('../../../index.js');
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assert.equal(math.factorial(0), 1);
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assert.equal(math.factorial(1), 1);
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assert.equal(math.factorial(2), 2);
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assert.equal(math.factorial(3), 6);
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assert.equal(math.factorial(4), 24);
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assert.equal(math.factorial(5), 120);
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assert.deepEqual(math.factorial(math.range(0,6)), [1,1,2,6,24,120]);
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assert.throws(function() { math.factorial(-1); });
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assert.throws(function() { math.factorial(1.5); });
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assert.throws(function() { math.factorial(); });
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assert.throws(function() { math.factorial(1,3); });
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