public async void DeleteSecrets() { using (var client = new VaultClient(TestVaultAddress)) { client.VaultToken = TestRootToken; await Task.WhenAll( client.DeleteGenericSecretAsync("foo1"), client.DeleteGenericSecretAsync("foo2")); var list = await client.ListGenericSecretsAsync(); Assert.Equal(0, (list?.Data?.Keys?.Where(x => new[] { "foo1", "foo2" }.Contains(x))?.Count()).GetValueOrDefault()); } }