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28 lines
1.1 KiB
JavaScript
28 lines
1.1 KiB
JavaScript
var assert = require('assert'),
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math = require('../../../index.js'),
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matrix = math.matrix;
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describe('eye', function() {
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it('should create an identity matrix of the given size', function() {
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assert.deepEqual(math.eye(), matrix([[1]]));
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assert.deepEqual(math.eye([]), [[1]]);
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assert.deepEqual(math.eye(1), matrix([[1]]));
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assert.deepEqual(math.eye(2), matrix([[1,0],[0,1]]));
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assert.deepEqual(math.eye([2]), [[1,0],[0,1]]);
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assert.deepEqual(math.eye(2,3), matrix([[1,0,0],[0,1,0]]));
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assert.deepEqual(math.eye(3,2), matrix([[1,0],[0,1],[0,0]]));
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assert.deepEqual(math.eye([3,2]), [[1,0],[0,1],[0,0]]);
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assert.deepEqual(math.eye(math.matrix([3,2])), matrix([[1,0],[0,1],[0,0]]));
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assert.deepEqual(math.eye(math.matrix([[3],[2]])), matrix([[1,0],[0,1],[0,0]]));
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assert.deepEqual(math.eye(3,3), matrix([[1,0,0],[0,1,0],[0,0,1]]));
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});
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// TODO: test option math.options.matrix.defaultType
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it('should throw an error with an invalid input', function() {
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assert.throws(function () {math.eye(3,3,2);});
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assert.throws(function () {math.eye([3,3,2]);});
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});
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}); |