public async void Test_BlobStorage_CopyFile()
{
// Arrange.
var destPath = $"other/{TestFileName}";
// Act
// Ensure files are deleted to begin with.
await _client.DeleteBlob(_fullPath);
await _client.DeleteBlob(destPath);
// Check before and after file copy.
var existsBefore = await _client.Exists(destPath);
await CreateTestFile(_fullPath);
await _client.CopyFile(_fullPath, destPath);
var existsAfter = await _client.Exists(destPath);
// Assert.
existsBefore.Should().BeFalse();
existsAfter.Should().BeTrue();
}