Does nothing when child in removeChild is not found

.changeset/red-waves-flash.md

@@ -0,0 +1,5 @@
+---
+'@remote-ui/core': patch
+---
+
+Fixes an issue when removeChild does not find a child node

packages/core/src/receiver.ts

@@ -204,6 +204,9 @@ export function createRemoteReceiver(): RemoteReceiver {
       const {children} = attached;
 
       const [removed] = children.splice(index, 1);
+      if (!removed) {
+        return;
+      }
       attached.version += 1;
 
       detach(removed);

packages/core/src/tests/receiver.test.ts

@@ -1,5 +1,10 @@
 import {createRemoteReceiver} from '../receiver';
-import {ACTION_MOUNT} from '../types';
+import {
+  ACTION_MOUNT,
+  ACTION_INSERT_CHILD,
+  ACTION_REMOVE_CHILD,
+  KIND_COMPONENT,
+} from '../types';
 
 describe('createRemoteReceiver()', () => {
   describe('state', () => {
@@ -14,4 +19,49 @@ describe('createRemoteReceiver()', () => {
       expect(receiver).toHaveProperty('state', 'mounted');
     });
   });
+
+  describe('removeChild', () => {
+    it('removes a given child node', () => {
+      const receiver = createRemoteReceiver();
+      receiver.receive(ACTION_MOUNT, [
+        {
+          id: 'child1',
+          children: [],
+          kind: KIND_COMPONENT,
+          props: {},
+          type: null,
+        },
+      ]);
+
+      expect(receiver.attached.root.children).toHaveLength(1);
+      expect(receiver.attached.root.children[0].id).toBe('child1');
+
+      const child2 = {
+        id: 'child2',
+        children: [],
+        kind: KIND_COMPONENT,
+        props: {},
+        type: null,
+      };
+
+      receiver.receive(ACTION_INSERT_CHILD, undefined, 0, child2, 'child2');
+
+      expect(receiver.attached.root.children).toHaveLength(2);
+      expect(receiver.attached.root.children[0].id).toBe('child2');
+      expect(receiver.attached.root.children[1].id).toBe('child1');
+
+      receiver.receive(ACTION_REMOVE_CHILD, undefined, 0, child2, 'child2');
+
+      expect(receiver.attached.root.children).toHaveLength(1);
+      expect(receiver.attached.root.children[0].id).toBe('child1');
+    });
+
+    it('handles a missing child', () => {
+      const receiver = createRemoteReceiver();
+      receiver.receive(ACTION_MOUNT, []);
+      receiver.receive(ACTION_REMOVE_CHILD, undefined, -1);
+
+      expect(receiver.attached.root.children).toHaveLength(0);
+    });
+  });
 });