feat: basic test coverage

packages/app/.babelrc.js

@@ -0,0 +1,13 @@
+const plugins = [];
+
+if (process.env.NODE_ENV === 'development') {
+  console.log(
+    'Detected development environment. Instrumenting code for coverage.'
+  );
+  plugins.push('istanbul');
+}
+
+module.exports = {
+  presets: ['next/babel'],
+  plugins,
+};

packages/data-center/src/workspace-unit-collection.spec.ts

@@ -55,7 +55,7 @@ test.describe.serial('workspace meta collection observable', () => {
     workspaceUnitCollection.once(
       'change',
       (event: WorkspaceUnitCollectionChangeEvent) => {
-        expect(event.deleted?.id).toEqual('123');
+        expect(event.deleted?.[0]?.id).toEqual('123');
       }
     );
     scope.remove('123');