public async Task Lease_FailsOnAcquiredLeasedBlob() { string id = $"test/{nameof(Lease_FailsOnAcquiredLeasedBlob)}.lck"; await _native.BreakLeaseAsync(id, true); using (AzureStorageLease lease1 = await _native.AcquireLeaseAsync(id, TimeSpan.FromSeconds(20))) { await Assert.ThrowsAsync <StorageException>(() => _native.AcquireLeaseAsync(id, TimeSpan.FromSeconds(20))); } }