basic snapshot test for tunes

repl/package.json

@@ -22,7 +22,8 @@
   "scripts": {
     "start": "react-scripts start",
     "build": "BUILD_PATH='../docs' react-scripts build && npm run build-tutorial",
-    "test": "react-scripts test",
+    "test": "mocha ./src/test --colors",
+    "snapshot": "cd ./src/ && rm -f ./tunes.snapshot.mjs && node ./shoot.mjs > ./tunes.snapshot.mjs",
     "eject": "react-scripts eject",
     "tutorial": "parcel src/tutorial/index.html --no-cache",
     "build-tutorial": "rm -rf ../docs/tutorial && parcel build src/tutorial/index.html --dist-dir ../docs/tutorial --public-url /tutorial --no-scope-hoist --no-cache",

repl/src/App.test.js

@@ -1,14 +0,0 @@
-/*
-App.test.js - <short description TODO>
-Copyright (C) 2022 Strudel contributors - see <https://github.com/tidalcycles/strudel/blob/main/repl/src/App.test.js>
-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 { render, screen } from '@testing-library/react';
-import App from './App';
-
-test('renders learn react link', () => {
-  render(<App />);
-  const linkElement = screen.getByText(/learn react/i);
-  expect(linkElement).toBeInTheDocument();
-});

repl/src/runtime.mjs

@@ -0,0 +1,143 @@
+// this file contains a runtime scope for testing all the tunes
+// it mocks all the functions that won't work in node (who are not important for testing values / structure)
+// it might require mocking more stuff when tunes added that use other functions
+
+// import * as tunes from './tunes.mjs';
+import { evaluate } from '@strudel.cycles/eval';
+import { extend } from '@strudel.cycles/eval';
+import * as strudel from '@strudel.cycles/core';
+// import gist from '@strudel.cycles/core/gist.js';
+import { mini } from '@strudel.cycles/mini/mini.mjs';
+// import { Tone } from '@strudel.cycles/tone';
+// import * as toneHelpers from '@strudel.cycles/tone/tone.mjs';
+// import * as voicingHelpers from '@strudel.cycles/tonal/voicings.mjs';
+// import * as uiHelpers from '@strudel.cycles/tone/ui.mjs';
+// import * as drawHelpers from '@strudel.cycles/tone/draw.mjs';
+// import euclid from '@strudel.cycles/core/euclid.mjs';
+// import '@strudel.cycles/tone/tone.mjs';
+// import '@strudel.cycles/midi/midi.mjs';
+import '@strudel.cycles/tonal/voicings.mjs';
+import '@strudel.cycles/tonal/tonal.mjs';
+import '@strudel.cycles/xen/xen.mjs';
+// import '@strudel.cycles/xen/tune.mjs';
+// import '@strudel.cycles/core/euclid.mjs';
+// import '@strudel.cycles/core/speak.mjs'; // window is not defined
+// import '@strudel.cycles/tone/pianoroll.mjs';
+// import '@strudel.cycles/tone/draw.mjs';
+// import '@strudel.cycles/osc/osc.mjs';
+// import '@strudel.cycles/webaudio/webaudio.mjs';
+// import '@strudel.cycles/serial/serial.mjs';
+// import controls from '@strudel.cycles/core/controls.mjs';
+
+class MockedNode {
+  chain() {
+    return this;
+  }
+  connect() {
+    return this;
+  }
+  toDestination() {
+    return this;
+  }
+  set() {
+    return this;
+  }
+  start() {
+    return this;
+  }
+}
+
+const mockNode = () => new MockedNode();
+
+const id = (x) => x;
+
+const toneHelpersMocked = {
+  FeedbackDelay: MockedNode,
+  MembraneSynth: MockedNode,
+  NoiseSynth: MockedNode,
+  MetalSynth: MockedNode,
+  Synth: MockedNode,
+  PolySynth: MockedNode,
+  Chorus: MockedNode,
+  Freeverb: MockedNode,
+  Gain: MockedNode,
+  vol: mockNode,
+  out: id,
+  osc: id,
+  adsr: id,
+  getDestination: id,
+  players: mockNode,
+  sampler: mockNode,
+  synth: mockNode,
+  piano: mockNode,
+  polysynth: mockNode,
+  fmsynth: mockNode,
+  membrane: mockNode,
+  noise: mockNode,
+  metal: mockNode,
+  lowpass: mockNode,
+  highpass: mockNode,
+};
+
+// tone mock
+strudel.Pattern.prototype.tone = function () {
+  return this;
+};
+
+// draw mock
+strudel.Pattern.prototype.pianoroll = function () {
+  return this;
+};
+
+// speak mock
+strudel.Pattern.prototype.speak = function () {
+  return this;
+};
+
+// webaudio mock
+strudel.Pattern.prototype.wave = function () {
+  return this;
+};
+strudel.Pattern.prototype.filter = function () {
+  return this;
+};
+strudel.Pattern.prototype.adsr = function () {
+  return this;
+};
+strudel.Pattern.prototype.out = function () {
+  return this;
+};
+// tune mock
+strudel.Pattern.prototype.tune = function () {
+  return this;
+};
+
+const uiHelpersMocked = {
+  backgroundImage: id,
+};
+
+extend(
+  // Tone,
+  strudel,
+  strudel.Pattern.prototype.bootstrap(),
+  toneHelpersMocked,
+  uiHelpersMocked,
+  /* controls,
+  toneHelpers,
+  voicingHelpers,
+  drawHelpers,
+  uiHelpers,
+  */
+  {
+    // gist,
+    // euclid,
+    mini,
+    // Tone,
+  },
+);
+
+export const queryCode = async (code, cycles) => {
+  const { pattern } = await evaluate(code);
+  const haps = pattern.queryArc(0, cycles);
+  return haps.map((h) => h.showWhole());
+};

repl/src/shoot.mjs

@@ -0,0 +1,11 @@
+// this script will render all example tunes and log them to the console.
+// it is intended to be written to tunes.snapshot.mjs using `npm run snapshot`
+
+import * as tunes from '../tunes.mjs';
+import { queryCode } from './runtime.mjs';
+
+Object.entries(tunes).forEach(([key, code]) => {
+  queryCode(code, 1).then((haps) => {
+    console.log(`export const ${key} = ${JSON.stringify(haps, null, 1)}`);
+  });
+});

repl/src/test/tunes.test.mjs

@@ -0,0 +1,14 @@
+import { queryCode } from '../runtime.mjs';
+import * as snaps from '../tunes.snapshot.mjs';
+import * as tunes from '../tunes.mjs';
+import { strict as assert } from 'assert';
+
+describe('tunes', () => {
+  it('renders tunes correctly', async () => {
+    async function testTune(key) {
+      const haps = await queryCode(tunes[key], 1);
+      assert.deepStrictEqual(haps, snaps[key]);
+    }
+    await Promise.all(Object.keys(tunes).map(testTune));
+  });
+});

repl/src/tunes.mjs

@@ -285,9 +285,9 @@ export const zeldasRescue = `stack(
 )`;
 
 export const technoDrums = `stack(
-  "c1*2".tone(new Tone.MembraneSynth().toDestination()),
-  "~ x".tone(new Tone.NoiseSynth().toDestination()),
-  "[~ c4]*2".tone(new Tone.MetalSynth().set({envelope:{decay:0.06,sustain:0}}).chain(new Gain(0.5),getDestination()))
+  "c1*2".tone(new MembraneSynth().toDestination()),
+  "~ x".tone(new NoiseSynth().toDestination()),
+  "[~ c4]*2".tone(new MetalSynth().set({envelope:{decay:0.06,sustain:0}}).chain(new Gain(0.5),getDestination()))
 )`;
 
 export const loungerave = `const delay = new FeedbackDelay(1/8, .2).chain(vol(0.5), out());