AWSSDK.IntegrationTests.S3.S3TestUtils.GetACLHelper C# (CSharp) Method

        public static GetACLResponse GetACLHelper(AmazonS3Client client, string bucketName, string key)
        {
            GetACLResponse r = null;
            Exception responseException = null;
            AutoResetEvent ars = new AutoResetEvent(false);

            client.GetACLAsync(new GetACLRequest()
            {
                BucketName = bucketName,
                Key = key
            }, (response) =>
            {
                responseException = response.Exception;
                if (responseException == null)
                {
                    r = response.Response;
                }
                ars.Set();
            }, new AsyncOptions { ExecuteCallbackOnMainThread = false });
            ars.WaitOne();

            if (responseException != null)
            {
                throw responseException;
            }
            return r;
        }

        public void TestPostCannedACLInner()
        {
            var key = string.Format(FileNameFormat, DateTime.Now.Ticks);

            // Authenticated Read
            S3TestUtils.PostObjectHelper(Client, BucketName, key, delegate(PostObjectRequest request) { request.CannedACL = S3CannedACL.AuthenticatedRead; });
            var grants = S3TestUtils.GetACLHelper(Client, BucketName, key).AccessControlList.Grants;

            Utils.AssertTrue(GrantsContain(grants, AuthenticatedUsersUriSubstring, S3Permission.READ));
            Utils.AssertTrue(GrantsDoNotContain(grants, AllUsersUriSubstring));
            Utils.AssertTrue(GrantsDoNotContain(grants, LogDeliveryUriSubstring));

            // No canned ACL equivalent to Private
            S3TestUtils.PostObjectHelper(Client, BucketName, key);
            grants = S3TestUtils.GetACLHelper(Client, BucketName, key).AccessControlList.Grants;
            Utils.AssertTrue(GrantsDoNotContain(grants, AuthenticatedUsersUriSubstring));
            Utils.AssertTrue(GrantsDoNotContain(grants, AllUsersUriSubstring));
            Utils.AssertTrue(GrantsDoNotContain(grants, LogDeliveryUriSubstring));

            // Private
            S3TestUtils.PostObjectHelper(Client, BucketName, key, delegate(PostObjectRequest request) { request.CannedACL = S3CannedACL.Private; });
            grants = S3TestUtils.GetACLHelper(Client, BucketName, key).AccessControlList.Grants;
            Utils.AssertTrue(GrantsDoNotContain(grants, AuthenticatedUsersUriSubstring));
            Utils.AssertTrue(GrantsDoNotContain(grants, AllUsersUriSubstring));
            Utils.AssertTrue(GrantsDoNotContain(grants, LogDeliveryUriSubstring));

            S3TestUtils.DeleteObjectHelper(Client, BucketName, key);
        }