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29 lines
1.2 KiB
JavaScript
29 lines
1.2 KiB
JavaScript
// test setCartesian
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var assert = require('assert');
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var math = require('../../../index');
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describe('setCartesian', function () {
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it('should return the cartesian product of two sets', function () {
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assert.deepEqual(math.setCartesian([1], [3]), [[1, 3]]);
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assert.deepEqual(math.setCartesian([1, 2], [3]), [[1, 3], [2, 3]]);
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assert.deepEqual(math.setCartesian([1, 2], [3, 4]), [[1, 3], [1, 4], [2, 3], [2, 4]]);
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assert.deepEqual(math.setCartesian([], [3, 4]), []);
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assert.deepEqual(math.setCartesian([], []), []);
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});
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it('should return the cartesian product of two multisets', function () {
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assert.deepEqual(math.setCartesian([1, 1], [3, 3]), [[1,3], [1, 3], [1, 3], [1, 3]]);
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});
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it('should return the same type of output as the inputs', function() {
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assert.equal(math.typeof(math.setCartesian([1, 2, 3], [3, 4, 5])), 'Array');
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assert.equal(math.typeof(math.setCartesian(math.matrix([1, 2, 3]), math.matrix([3, 4, 5]))), 'Matrix');
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});
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it('should throw an error in case of invalid number of arguments', function() {
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assert.throws(function () {math.setCartesian();}, /TypeError: Too few arguments/);
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assert.throws(function () {math.setCartesian([], [], []);}, /TypeError: Too many arguments/);
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});
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});
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