49 lines
No EOL
1.3 KiB
JavaScript
49 lines
No EOL
1.3 KiB
JavaScript
const u = require('../../src/units')
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describe('Units', function() {
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it('defaults', function() {
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// check that an empty config has the default units (and nothing more)
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const def = u.parse({})
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Object.keys(def).length.should.equal(4)
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def.U.should.equal(19.05)
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def.u.should.equal(19)
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def.cx.should.equal(18)
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def.cy.should.equal(17)
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})
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it('units', function() {
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// check that units can contain formulas, and reference each other
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const res = u.parse({
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units: {
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a: 'cx / 2',
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b: 'a + 1'
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}
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})
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Object.keys(res).length.should.equal(6)
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res.a.should.equal(9)
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res.b.should.equal(10)
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// also check that order matters, which it should
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u.parse.bind(this, {
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units: {
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a: 'b + 1',
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b: 'cx / 2'
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}
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}).should.throw()
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})
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it('variables', function() {
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// check that variables work, and can override units
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const res = u.parse({
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units: {
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a: 'cx / 2',
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},
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variables: {
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a: 'U + 1'
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}
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})
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Object.keys(res).length.should.equal(5)
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res.a.should.equal(20.05)
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})
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}) |