Unsubscribe removed Navara effects and models from warm view frames

src/globe/navara/frameDescriptor.test.mjs

@@ -0,0 +1,43 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import { withFrameUpdates } from './frameDescriptor.js';
+
+test('deleting a descriptor unsubscribes only that renderer from the warm view', () => {
+  const frames = new Set();
+  const view = {
+    on(name, cb) {
+      assert.equal(name, 'preRender');
+      frames.add(cb);
+    },
+    off(name, cb) {
+      assert.equal(name, 'preRender');
+      frames.delete(cb);
+    },
+  };
+  class Base {
+    view = view;
+    onCreate() {}
+    onDestroy() {
+      this.destroyed = true;
+    }
+  }
+  class Layer extends withFrameUpdates(Base) {
+    ticks = [];
+    updateFrame(time) {
+      this.ticks.push(time);
+    }
+  }
+  const a = new Layer(),
+    b = new Layer();
+  a.onCreate();
+  b.onCreate();
+  assert.equal(typeof a.update, 'undefined', 'no duplicate SDK subscription');
+  for (const cb of frames) cb(1);
+  a.onDestroy();
+  for (const cb of frames) cb(2);
+  assert.deepEqual(a.ticks, [1]);
+  assert.deepEqual(b.ticks, [1, 2]);
+  assert.equal(a.destroyed, true);
+  b.onDestroy();
+  assert.equal(frames.size, 0);
+});