33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
const test = require('tap').test
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const RS = require('core/reed-solomon-encoder')
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test('Reed-Solomon encoder', function (t) {
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let enc = new RS()
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t.notOk(enc.genPoly, 'Should have an undefined generator polynomial')
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t.throw(function () { enc.encode([]) }, 'Should throw if generator polynomial is undefined')
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enc.initialize(2)
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t.equal(enc.degree, 2, 'Should set correct degree value')
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t.ok(enc.genPoly, 'Generator polynomial should be defined')
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const result = enc.encode(new Uint8Array([48, 49, 50, 51, 52]))
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t.equal(result.length, 2, 'Should return a number of codewords equal to gen poly degree')
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enc = new RS(2)
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const genPoly = enc.genPoly
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t.equal(enc.degree, 2, 'Should set correct degree value')
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t.ok(genPoly, 'Generator polynomial should be defined')
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enc.initialize(3)
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t.notEqual(enc.genPoly, genPoly, 'Should reinitialize the generator polynomial')
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enc = new RS(0)
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t.notOk(enc.genPoly, 'Should not create a generator polynomial if degree is 0')
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enc = new RS(1)
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t.deepEqual(enc.encode(new Uint8Array([0])), new Uint8Array([0]),
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'Should return correct buffer')
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t.end()
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})
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