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33 lines
1.0 KiB
JavaScript
33 lines
1.0 KiB
JavaScript
// test matrix construction
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var assert = require('assert'),
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math = require('../../../math.js'),
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matrix = math.matrix;
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// 0 arguments
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var a = matrix();
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assert.ok(a instanceof math.type.Matrix);
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assert.deepEqual(math.size(a), matrix([0])); // TODO: wouldn't it be nicer if an empty matrix has zero dimensions?
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// 1 argument
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var b = matrix([[1,2],[3,4]]);
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assert.ok(b instanceof math.type.Matrix);
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assert.deepEqual(b, new math.type.Matrix([[1,2],[3,4]]));
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assert.deepEqual(math.size(b), matrix([2,2]));
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var c = matrix(b);
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assert.ok(c._data != b._data); // data should be cloned
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assert.deepEqual(c, new math.type.Matrix([[1,2],[3,4]]));
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assert.deepEqual(math.size(c), matrix([2,2]));
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var d = matrix(math.range(1,5));
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assert.ok(d instanceof math.type.Matrix);
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assert.deepEqual(d, new math.type.Matrix([1,2,3,4,5]));
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assert.deepEqual(math.size(d), matrix([5]));
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assert.throws(function () {matrix(123)}, TypeError);
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assert.throws(function () {matrix(math.unit('5cm'))}, TypeError);
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// more than 1 argument
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assert.throws(function () {matrix(2, 3)}, SyntaxError);
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