/// <summary>
        /// Generates and validates a request to break a lease.
        /// </summary>
        /// <param name="context">The blob context.</param>
        /// <param name="containerName">The container name.</param>
        /// <param name="blobName">The blob name.</param>
        /// <param name="breakPeriod">The break period.</param>
        /// <returns>A web request for the operation.</returns>
        public static HttpRequestMessage BreakLeaseRequest(BlobContext context, string containerName, string blobName, int?breakPeriod, AccessCondition accessCondition)
        {
            HttpRequestMessage request;
            OperationContext   opContext = new OperationContext();

            if (blobName != null)
            {
                // blob lease
                Uri uri = BlobTests.ConstructPutUri(context.Address, containerName, blobName);
                request = BlobHttpRequestMessageFactory.Lease(
                    uri,
                    context.Timeout,
                    LeaseAction.Break,
                    null /* proposed lease ID */,
                    null /* lease duration */,
                    breakPeriod,
                    accessCondition,
                    null,
                    opContext,
                    SharedKeyCanonicalizer.Instance,
                    context.Credentials);
            }
            else
            {
                // container lease
                Uri uri = BlobClientTests.ConstructUri(context.Address, containerName);
                request = ContainerHttpRequestMessageFactory.Lease(
                    uri,
                    context.Timeout,
                    LeaseAction.Break,
                    null /* proposed lease ID */,
                    null /* lease duration */,
                    breakPeriod,
                    accessCondition,
                    null,
                    opContext,
                    SharedKeyCanonicalizer.Instance,
                    context.Credentials);
            }
            Assert.IsNotNull(request);
            Assert.AreEqual(HttpMethod.Put, request.Method);
            BlobTestUtils.VersionHeader(request, false);
            BlobTestUtils.LeaseIdHeader(request, null);
            BlobTestUtils.LeaseActionHeader(request, "break");
            BlobTestUtils.LeaseDurationHeader(request, null);
            BlobTestUtils.ProposedLeaseIdHeader(request, null);
            BlobTestUtils.BreakPeriodHeader(request, breakPeriod.HasValue ? breakPeriod.Value.ToString() : null);
            return(request);
        }
        public static HttpRequestMessage GetBlockListRequest(BlobContext context, string containerName, string blobName, BlockListingFilter typesOfBlocks, AccessCondition accessCondition)
        {
            Uri uri = BlobClientTests.ConstructUri(context.Address, containerName, blobName);
            OperationContext   opContext = new OperationContext();
            HttpRequestMessage request   = BlobHttpRequestMessageFactory.GetBlockList(uri, context.Timeout, null /* snapshot */, typesOfBlocks, accessCondition, null,
                                                                                      opContext,
                                                                                      SharedKeyCanonicalizer.Instance,
                                                                                      context.Credentials);

            Assert.IsNotNull(request);
            Assert.IsNotNull(request.Method);
            Assert.AreEqual(HttpMethod.Get, request.Method);
            BlobTestUtils.RangeHeader(request, null);
            BlobTestUtils.LeaseIdHeader(request, null);
            return(request);
        }
        public static HttpRequestMessage ListContainersRequest(BlobContext context, ListingContext listingContext)
        {
            Uri uri = BlobClientTests.ConstructUri(context.Address);
            OperationContext   opContext = new OperationContext();
            HttpRequestMessage request   = ContainerHttpRequestMessageFactory.List(uri, context.Timeout, listingContext, ContainerListingDetails.Metadata, null,
                                                                                   opContext,
                                                                                   SharedKeyCanonicalizer.Instance,
                                                                                   context.Credentials);

            Assert.IsNotNull(request);
            Assert.IsNotNull(request.Method);
            Assert.AreEqual(HttpMethod.Get, request.Method);
            BlobTestUtils.RangeHeader(request, null);
            BlobTestUtils.LeaseIdHeader(request, null);
            return(request);
        }
        public static HttpRequestMessage DeleteContainerRequest(BlobContext context, string containerName, AccessCondition accessCondition)
        {
            Uri uri = BlobClientTests.ConstructUri(context.Address, containerName);
            OperationContext   opContext = new OperationContext();
            HttpRequestMessage request   = ContainerHttpRequestMessageFactory.Delete(uri, context.Timeout, accessCondition, null,
                                                                                     opContext,
                                                                                     SharedKeyCanonicalizer.Instance,
                                                                                     context.Credentials);

            Assert.IsNotNull(request);
            Assert.IsNotNull(request.Method);
            Assert.AreEqual(HttpMethod.Delete, request.Method);
            BlobTestUtils.RangeHeader(request, null);
            BlobTestUtils.LeaseIdHeader(request, null);
            return(request);
        }