Clean release snapshot

2026-08-12 19:59:35 +00:00 · 2026-06-16 18:47:13 +02:00
commit 6c110398b4
574 changed files with 162566 additions and 0 deletions
@@ -0,0 +1,88 @@
+const { test } = require('node:test');
+const assert = require('node:assert/strict');
+const fs = require('node:fs');
+const path = require('node:path');
+const vm = require('node:vm');
+
+const APP_JS = path.join(__dirname, '..', '..', 'static', 'app.js');
+
+function extractFunction(src, signature) {
+    const start = src.indexOf(signature);
+    if (start === -1) throw new Error(`extractFunction: '${signature}' not found in app.js`);
+    const openBrace = src.indexOf('{', start);
+    let depth = 1;
+    let i = openBrace + 1;
+    while (i < src.length && depth > 0) {
+        const ch = src[i];
+        if (ch === '{') depth++;
+        else if (ch === '}') depth--;
+        i++;
+    }
+    if (depth !== 0) throw new Error(`extractFunction: unbalanced braces after '${signature}'`);
+    return src.slice(start, i);
+}
+
+function buildReadySandbox() {
+    const listeners = new Map();
+    const sandbox = {
+        window: {
+            slopsmith: {
+                on(event, fn) { listeners.set(event, fn); },
+                off(event, fn) { if (listeners.get(event) === fn) listeners.delete(event); },
+            },
+        },
+        setTimeout,
+        clearTimeout,
+        Promise,
+        __emit(event) {
+            const fn = listeners.get(event);
+            if (fn) fn();
+        },
+    };
+    vm.createContext(sandbox);
+    return sandbox;
+}
+
+function loadReadyHelper(sandbox, src) {
+    const code = `
+        let _audioSeekGen = 10;
+        ${extractFunction(src, 'function _waitForSongReady(')}
+        globalThis.__waitForSongReady = _waitForSongReady;
+        globalThis.__setAudioSeekGen = value => { _audioSeekGen = value; };
+    `;
+    vm.runInContext(code, sandbox);
+}
+
+test('_waitForSongReady rejects a ready event from a different audio generation', async () => {
+    const src = fs.readFileSync(APP_JS, 'utf8');
+    const sandbox = buildReadySandbox();
+    loadReadyHelper(sandbox, src);
+
+    const stale = sandbox.__waitForSongReady(11, 1000);
+    sandbox.__emit('song:ready');
+    assert.equal(await stale, false);
+
+    sandbox.__setAudioSeekGen(11);
+    const current = sandbox.__waitForSongReady(11, 1000);
+    sandbox.__emit('song:ready');
+    assert.equal(await current, true);
+});
+
+test('playback adapter scopes startTime readiness and validates seek targets', () => {
+    const src = fs.readFileSync(APP_JS, 'utf8');
+    const fn = extractFunction(src, 'function _installPlaybackTransportAdapter()');
+
+    assert.match(fn, /const expectedSeekGen\s*=\s*_audioSeekGen\s*\+\s*1;/);
+    assert.match(fn, /_waitForSongReady\(expectedSeekGen\)/);
+    assert.match(fn, /const seconds\s*=\s*Number\(time\);/);
+    assert.match(fn, /!Number\.isFinite\(seconds\)\s*\|\|\s*seconds\s*<\s*0/);
+    assert.match(fn, /throw new Error\(`Invalid seek time:/);
+    assert.match(fn, /return _audioSeek\(seconds, reason \|\| 'playback-command'\);/);
+});
+
+test('playback adapter suppresses duplicate HTML5 pause events before emitting canonical pause', () => {
+    const src = fs.readFileSync(APP_JS, 'utf8');
+    const fn = extractFunction(src, 'function _installPlaybackTransportAdapter()');
+
+    assert.match(fn, /if \(!window\._juceMode && wasPlaying\) \{\s*isPlaying = false;\s*window\.slopsmith\.isPlaying = false;\s*audio\.pause\(\);\s*_markPlaybackPaused\(\);\s*\}/);
+});