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45 lines
1.8 KiB
JavaScript
45 lines
1.8 KiB
JavaScript
// test units functions
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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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unit = math.unit;
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// test function in
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assert.equal(math.in(unit('5m'), unit('cm')).toString(), '500 cm');
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assert.equal(math.in(unit('12 inch'), unit('foot')).toString(), '1 foot');
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assert.equal(math.in(unit('2.54 cm'), unit('inch')).toString(), '1 inch');
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assert.equal(math.in(unit('20 celsius'), unit('fahrenheit')).toString(), '68 fahrenheit');
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assert.equal(math.in(unit('2 litre'), unit('m3')).toString(), '0.002 m3');
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// test with array and matrix
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assert.deepEqual(math.format(math.in([
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unit('1cm'),
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unit('2 inch'),
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unit('2km')], unit('foot'))),
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'[0.032808 foot, 0.16667 foot, 6561.7 foot]');
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var a = math.matrix([[unit('1cm'), unit('2cm')],[unit('3cm'),unit('4cm')]]);
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var b = math.in(a, unit('mm'));
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assert.ok(b instanceof math.type.Matrix);
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assert.equal(math.format(b), '[[10 mm, 20 mm], [30 mm, 40 mm]]');
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// test function in in parser
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assert.equal(math.eval('2.54 cm in inch').toString(), '1 inch');
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assert.equal(math.eval('2.54 cm + 2 inch in foot').toString(), '0.25 foot');
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// test invalid conversion
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assert.throws(function () {math.in(unit('20 kg'), unit('cm'))});
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assert.throws(function () {math.in(unit('20 celsius'), unit('litre'))});
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assert.throws(function () {math.in(unit('5 cm'), unit('2 m'))});
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// test wrong number of arguments (requires two arguments)
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assert.throws(function () {math.in(unit('20 kg'))});
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assert.throws(function () {math.in(unit('20 kg'), unit('m'), unit('cm'))});
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// test wrong type of arguments
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assert.throws(function () {math.in(5, unit('m'))}, TypeError);
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assert.throws(function () {math.in(unit('5cm'), 2)}, TypeError);
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assert.throws(function () {math.in('5cm', unit('cm'))}, TypeError);
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