test: add tests for ChannelStore and channel singletons

packages/mixer-connection/src/lib/__tests__/channel-singletons.spec.ts

@@ -0,0 +1,56 @@
+import { SoundcraftUI } from '../soundcraft-ui';
+
+describe('Channel Store Singletons', () => {
+  let conn: SoundcraftUI;
+
+  beforeEach(() => {
+    conn = new SoundcraftUI('0.0.0.0');
+  });
+
+  // Note: comparing class instances with toBe() directly doesn't work because of circular structure errors.
+  // This is why we used toBe(true) as a workaround.
+
+  describe('should create objects only once and retrieve them from the ChannelStore', () => {
+    it('MasterChannel', () => {
+      const ch1 = conn.master.player(2);
+      const ch2 = conn.master.player(2);
+      expect(ch1 === ch2).toBe(true);
+    });
+
+    it('DelayableMasterChannel', () => {
+      const ch1 = conn.master.input(10);
+      const ch2 = conn.master.input(10);
+      expect(ch1 === ch2).toBe(true);
+    });
+
+    it('AuxChannel', () => {
+      const ch1 = conn.aux(2).input(4);
+      const ch2 = conn.aux(2).input(4);
+      expect(ch1 === ch2).toBe(true);
+    });
+
+    it('FxChannel', () => {
+      const ch1 = conn.fx(1).input(2);
+      const ch2 = conn.fx(1).input(2);
+      expect(ch1 === ch2).toBe(true);
+    });
+
+    it('VolumeBus', () => {
+      const bus1 = conn.volume.headphone(1);
+      const bus2 = conn.volume.headphone(1);
+      expect(bus1 === bus2).toBe(true);
+    });
+
+    it('MuteGroup', () => {
+      const bus1 = conn.muteGroup(2);
+      const bus2 = conn.muteGroup(2);
+      expect(bus1 === bus2).toBe(true);
+    });
+
+    it('HwChannel', () => {
+      const ch1 = conn.hw(4);
+      const ch2 = conn.hw(4);
+      expect(ch1 === ch2).toBe(true);
+    });
+  });
+});

packages/mixer-connection/src/lib/state/channel-store.spec.ts

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+import { ChannelStore } from './channel-store';
+
+describe('Channel Store', () => {
+  it('should store and retrieve an object', () => {
+    const store = new ChannelStore();
+    const myObject = { foo: 'bar', bar: 5 };
+
+    store.set('myKey', myObject);
+
+    expect(store.get('myKey')).toBe(myObject);
+  });
+});