Add group description getter/setter (#885)

bindings_node/src/groups.rs

@@ -500,6 +500,37 @@ impl NapiGroup {
     Ok(group_image_url_square)
   }
 
+  #[napi]
+  pub async fn update_group_description(&self, group_description: String) -> Result<()> {
+    let group = MlsGroup::new(
+      self.inner_client.context().clone(),
+      self.group_id.clone(),
+      self.created_at_ns,
+    );
+
+    group
+      .update_group_description(&self.inner_client, group_description)
+      .await
+      .map_err(|e| Error::from_reason(format!("{}", e)))?;
+
+    Ok(())
+  }
+
+  #[napi]
+  pub fn group_description(&self) -> Result<String> {
+    let group = MlsGroup::new(
+      self.inner_client.context().clone(),
+      self.group_id.clone(),
+      self.created_at_ns,
+    );
+
+    let group_description = group
+      .group_description()
+      .map_err(|e| Error::from_reason(format!("{}", e)))?;
+
+    Ok(group_description)
+  }
+
   #[napi(ts_args_type = "callback: (err: null | Error, result: NapiMessage) => void")]
   pub fn stream(&self, callback: JsFunction) -> Result<NapiStreamCloser> {
     let tsfn: ThreadsafeFunction<NapiMessage, ErrorStrategy::CalleeHandled> =

bindings_node/test/Conversations.test.ts

@@ -138,6 +138,35 @@ describe('Conversations', () => {
     expect(groupWithPermissions.groupPermissions().policyType()).toBe(
       GroupPermissions.GroupCreatorIsAdmin
     )
+
+    const groupWithDescription = await client1
+      .conversations()
+      .createGroup([user2.account.address], {
+        groupDescription: 'foo',
+      })
+    expect(groupWithDescription).toBeDefined()
+    expect(groupWithDescription.groupName()).toBe('')
+    expect(groupWithDescription.groupImageUrlSquare()).toBe('')
+    expect(groupWithDescription.groupDescription()).toBe('foo')
+  })
+
+  it('should update group metadata', async () => {
+    const user1 = createUser()
+    const user2 = createUser()
+    const client1 = await createRegisteredClient(user1)
+    await createRegisteredClient(user2)
+    const group = await client1
+      .conversations()
+      .createGroup([user2.account.address])
+
+    await group.updateGroupName('foo')
+    expect(group.groupName()).toBe('foo')
+
+    await group.updateGroupImageUrlSquare('https://foo/bar.png')
+    expect(group.groupImageUrlSquare()).toBe('https://foo/bar.png')
+
+    await group.updateGroupDescription('bar')
+    expect(group.groupDescription()).toBe('bar')
   })
 
   it('should stream new groups', async () => {