| 1 | const CompositionAlgebra = require('../src/CompositionAlgebra')
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| 2 | const realField = require('../src/realField')
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| 3 |
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| 4 | describe('CompositionAlgebra', () => {
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| 5 | it('checks n is 1, 2, 4 or 8', () => {
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| 6 | ;(() => {
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| 7 | CompositionAlgebra(realField, 3)
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| 8 | }).should.throw()
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| 9 | })
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| 10 |
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| 11 | it('has signature (field, num)', () => {
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| 12 | const R = CompositionAlgebra(realField, 1)
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| 13 | const C = CompositionAlgebra(realField, 2)
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| 14 | const H = CompositionAlgebra(realField, 4)
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| 15 | const O = CompositionAlgebra(realField, 8)
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| 16 |
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| 17 | R.should.be.instanceOf(Function)
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| 18 | C.should.be.instanceOf(Function)
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| 19 | H.should.be.instanceOf(Function)
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| 20 | O.should.be.instanceOf(Function)
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| 21 | })
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| 22 |
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| 23 | it('returns a Scalar class', () => {
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| 24 | const R = CompositionAlgebra(realField, 1)
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| 25 | const C = CompositionAlgebra(realField, 2)
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| 26 |
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| 27 | R.addition(2, 3).should.be.eql(5)
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| 28 |
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| 29 | const x = new R(2)
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| 30 | x.data.should.be.eql(2)
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| 31 |
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| 32 | x.addition(3).data.should.be.eql(5)
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| 33 |
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| 34 | C.addition([1, 2], [3, 4]).should.be.eql([4, 6])
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| 35 |
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| 36 | const z = new C([1, 2])
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| 37 | z.data.should.be.eql([1, 2])
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| 38 |
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| 39 | z.addition([3, 4]).data.should.be.eql([4, 6])
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| 40 | })
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| 41 | })
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