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56 lines
2.2 KiB
JavaScript
56 lines
2.2 KiB
JavaScript
// test data type Unit
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var assert = require('assert');
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var math = require('../../src/index.js');
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var unit1 = math.unit(5000, 'cm');
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assert.equal(unit1.toString(), '50 m');
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assert.equal(math.unit(5, 'kg').toString(), '5 kg');
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assert.equal(math.unit('5kg').toString(), '5 kg');
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assert.equal(math.unit('5 kg').toString(), '5 kg');
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assert.equal(math.unit(' 5 kg ').toString(), '5 kg');
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assert.equal(math.unit('5e-3kg').toString(), '5 g');
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assert.equal(math.unit('5e+3kg').toString(), '5 Mg');
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assert.equal(math.unit('-5kg').toString(), '-5 kg');
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assert.equal(math.unit('-5mg').toString(), '-5 mg');
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assert.equal(math.unit(null, 'kg').toString(), 'kg');
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assert.throws(function () { Unit(2, 'inch'); });
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assert.throws(function () { new Unit('24', 'inch'); });
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assert.throws(function () { new Unit(0, 'bla'); });
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assert.throws(function () { new Unit(0, 3); });
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assert.equal(math.type.Unit.isPlainUnit('bla'), false);
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assert.equal(math.type.Unit.isPlainUnit('cm'), true);
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assert.equal(math.type.Unit.isPlainUnit('inch'), true);
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assert.equal(math.type.Unit.isPlainUnit('kb'), true);
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assert.equal(math.type.Unit.isPlainUnit('5cm'), false);
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// test unit.in and unit.as
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var u = math.unit(5000, 'cm');
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assert.equal(u.toString(), '50 m');
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var u2 = u.in('mm');
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assert.equal(u2.toString(), '50000 mm');
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assert.strictEqual(u.toNumber('mm'), 50000);
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assert.throws( function () {u.in('5mm'); });
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var u3 = math.unit('5.08 cm').in('inch');
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assert.equal(u3.toString(), '2 inch');
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assert.strictEqual(math.format(math.unit('5.08 cm').toNumber('inch')), '2');
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// test calculation of best prefix
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assert.equal(math.unit('0.001m').toString(), '1 mm');
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assert.equal(math.unit('0.01m').toString(), '10 mm');
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assert.equal(math.unit('0.1m').toString(), '100 mm');
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assert.equal(math.unit('0.5m').toString(), '500 mm');
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assert.equal(math.unit('0.6m').toString(), '0.6 m');
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assert.equal(math.unit('1m').toString(), '1 m');
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assert.equal(math.unit('10m').toString(), '10 m');
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assert.equal(math.unit('100m').toString(), '100 m');
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assert.equal(math.unit('300m').toString(), '300 m');
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assert.equal(math.unit('500m').toString(), '500 m');
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assert.equal(math.unit('600m').toString(), '0.6 km');
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assert.equal(math.unit('1000m').toString(), '1 km');
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// TODO: extensively test Unit
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