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Add packages/edo for Equal Division of the Octave scales

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robmckinnon 2025-06-28 18:24:05 +01:00 • committed by robmckinnon
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commit 73965a3a39
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packages/edo/test/edo.test.mjs Normal file
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/*
edo.test.mjs - tests of edo.mjs
Copyright (C) 2025 Rob McKinnon and Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/packages/tonal/test/tonal.test.mjs>
This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details. You should have received a copy of the GNU Affero General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import '../edo.mjs';
import { n } from '@strudel/core';
import { describe, it, expect } from 'vitest';
describe('edoScale', () => {
it('Should run tonal functions ', () => {
// base note A3 = 220Hz
let baseNote = 'A3';
let root = 220;
let freq = 220;
let pattern = n('0').edoScale([baseNote, 'LLsLLLs', 2, 1]);
let cycle = pattern.firstCycleValues[0];
expect(cycle.freq).toEqual(freq);
expect(cycle.edo).toEqual(12);
expect(cycle.degree).toEqual(1);
expect(parseFloat(cycle.root).toFixed(0)).toEqual(root.toFixed(0));
// base note A4 = 440Hz
baseNote = 'A4';
root = 440;
freq = 880;
pattern = n('7').edoScale([baseNote, 'LLsLLLs', 2, 1]);
cycle = pattern.firstCycleValues[0];
expect(cycle.freq).toEqual(freq);
expect(cycle.edo).toEqual(12);
expect(cycle.degree).toEqual(1);
expect(parseFloat(cycle.root).toFixed(0)).toEqual(root.toFixed(0));
});
});