core-api: updated Observable type to support interop

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>
2021-05-17 13:19:22 +02:00
parent e3f441e1db
commit e6f0180242
3 changed files with 16 additions and 2 deletions
@@ -32,6 +32,10 @@ type Waiter = {

 const nullObservable = {
  subscribe: () => ({ unsubscribe: () => {}, closed: true }),
+
+  [Symbol.observable]() {
+    return this;
+  },
 };

 export class MockErrorApi implements ErrorApi {