public static async Task ShouldExistAsync(this StorageElement element)
{
var exists = await element.ExistsAsync();
exists.ShouldBeTrue($"The element at {element.Path} should exist, but doesn't.");
}
public static async Task ShouldNotExistAsync(this StorageElement element)
{
var exists = await element.ExistsAsync();
exists.ShouldBeFalse($"The element at {element.Path} should not exist, but does.");
}