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Add tests for all signals using modulo, including negative time

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Tijmen Zwaan
2026-08-13 01:03:14 +02:00
parent bd54c8003a
commit 08dc5e2c5c
1 changed files with 66 additions and 6 deletions
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packages/core/test/signal.test.mjs
+66 -6
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@@ -8,7 +8,23 @@ import Fraction from 'fraction.js';
import { describe, it, expect, vi } from 'vitest';
import { saw, saw2, isaw, isaw2, per, perx, cyclesPer } from '../signal.mjs';
import {
saw,
saw2,
isaw,
isaw2,
tri,
tri2,
itri,
itri2,
square,
square2,
isquare,
isquare2,
per,
perx,
cyclesPer,
} from '../signal.mjs';
import { fastcat, sequence, State, TimeSpan, Hap, note } from '../index.mjs';
const st = (begin, end) => new State(ts(begin, end));
@@ -24,17 +40,61 @@ const sameFirst = (a, b) => {
describe('signal()', () => {
it('Can make saw/saw2', () => {
expect(saw.struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(0, 1 / 4, 1 / 2, 3 / 4).firstCycle(),
);
expect(saw.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(0, 0.25, 0.5, 0.75).firstCycle());
expect(saw2.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(-1, -0.5, 0, 0.5).firstCycle());
});
it('Can make isaw/isaw2', () => {
expect(isaw.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 0.75, 0.5, 0.25).firstCycle());
expect(isaw2.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 0.5, 0, -0.5).firstCycle());
});
it('Can make tri/tri2', () => {
expect(tri.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(0, 0.5, 1, 0.5).firstCycle());
expect(tri2.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(-1, 0, 1, 0).firstCycle());
});
it('Can make itri/itri2', () => {
expect(itri.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 0.5, 0, 0.5).firstCycle());
expect(itri2.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 0, -1, 0).firstCycle());
});
it('Can make square/square2', () => {
expect(square.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(0, 0, 1, 1).firstCycle());
expect(square2.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(-1, -1, 1, 1).firstCycle());
});
it('Can make isquare/isquare2', () => {
expect(isquare.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 1, 0, 0).firstCycle());
expect(isquare2.struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 1, -1, -1).firstCycle());
});
it('Can go into negative time', () => {
expect(saw.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(0, 0.25, 0.5, 0.75).firstCycle(),
);
expect(saw2.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(-1, -0.5, 0, 0.5).firstCycle(),
);
expect(isaw.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(1, 0.75, 0.5, 0.25).firstCycle(),
);
expect(isaw2.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(1, 0.5, 0, -0.5).firstCycle(),
);
expect(tri.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(0, 0.5, 1, 0.5).firstCycle(),
);
expect(tri2.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(-1, 0, 1, 0).firstCycle());
expect(itri.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(1, 0.5, 0, 0.5).firstCycle(),
);
expect(itri2.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(1, 0, -1, 0).firstCycle());
expect(square.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(sequence(0, 0, 1, 1).firstCycle());
expect(square2.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(-1, -1, 1, 1).firstCycle(),
);
expect(isquare.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(1, 1, 0, 0).firstCycle(),
);
expect(isquare2.late(1).struct(true, true, true, true).firstCycle()).toStrictEqual(
sequence(1, 1, -1, -1).firstCycle(),
);
});
});
describe('cyclesPer', () => {