test .errors() as well

Author: leibale

packages/client/lib/client/index.spec.ts

@@ -614,6 +614,7 @@ describe('Client', () => {
                     assert.equal(err.replies.length, 2);
                     assert.deepEqual(err.errorIndexes, [1]);
                     assert.ok(err.replies[1] instanceof ErrorReply);
+                    assert.deepEqual([...err.errors()], [err.replies[1]]);
                     return true;
                 }
             );