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40 lines
1.3 KiB
JavaScript
40 lines
1.3 KiB
JavaScript
// test mod
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var assert = require('assert'),
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approx = require('../../../tools/approx.js'),
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math = require('../../../src/index.js'),
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matrix = math.matrix,
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range = math.range,
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mod = math.mod;
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// test parser
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approx.equal(math.eval('8 % 3'), 2);
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approx.equal(math.eval('mod(8, 3)'), 2);
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// test number
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approx.equal(mod(7, 2), 1);
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approx.equal(mod(9, 3), 0);
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approx.equal(mod(10, 4), 2);
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assert.throws(function () {mod(10, -4)});
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approx.equal(mod(-10, 4), 2);
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assert.throws(function () {mod(-10, -4)});
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approx.equal(mod(8.2, 3), 2.2);
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approx.equal(mod(4, 1.5), 1);
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approx.equal(mod(0, 3), 0);
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// test wrong number of arguments
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assert.throws(function () {mod(1)}, SyntaxError);
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assert.throws(function () {mod(1,2,3)}, SyntaxError);
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// test complex
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assert.throws(function () {mod(math.complex(1,2), 3)}, TypeError);
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assert.throws(function () {mod(3, math.complex(1,2))}, TypeError);
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// test string
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assert.throws(function () {mod('string', 3)}, TypeError);
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assert.throws(function () {mod(5, 'string')}, TypeError);
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// test array, matrix, range
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approx.deepEqual(mod([-4,-3,-2,-1,0,1,2,3,4], 3), [2,0,1,2,0,1,2,0,1]);
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approx.deepEqual(mod(matrix([-4,-3,-2,-1,0,1,2,3,4]), 3), matrix([2,0,1,2,0,1,2,0,1]));
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approx.deepEqual(mod(range(-4,4), 3), [2,0,1,2,0,1,2,0,1]);
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