/// <summary>
/// Delete the User-Defined type if exists.
/// If the UDT doesn't exists, the method skips the deletion.
///
/// <para>Note: If the User-Defined type name is [Null || Empty] the method will take the generic type {TEntity} name.</para>
/// </summary>
///
/// <typeparam name="TEntity">The calss where the method should look for the properties and their types.</typeparam>
/// <param name="self">The Cassandra Fluent Migrator.</param>
/// <param name="name">The name of the udt (Optional).</param>
/// <returns>The Cassandra Fluent Migrator helper.</returns>
///
/// <exception cref="NullReferenceException">Thrown when one or all the specified arguments are invalid or null.</exception>
public static async Task <ICassandraFluentMigrator> DeleteUserDefinedTypeAsync <TEntity>([NotNull] this ICassandraFluentMigrator self, [NotNull] string name = default)
where TEntity : class
{
Check.NotNull(self, $"The argument [cassandra fluent migrator]");
name = string.IsNullOrWhiteSpace(name) ? typeof(TEntity).Name.NormalizeString() : name.NormalizeString();
if (!self.DoesUdtExists(name))
{
return(self);
}
return(await self.ExecuteDeleteUdtAsync <TEntity>(name));
}
public void DoesUdtExists_InvalidArguments_Faield()
{
try
{
this.cfmHelper.DoesUdtExists(null);
}
catch (NullReferenceException ex)
{
var expected = string.Format(INVALID_OR_EMPTY_ARGUMENT, "udt").ToLower();
Assert.Contains(expected, ex.Message.ToLower());
}
try
{
ICassandraFluentMigrator tempHelper = null;
tempHelper.DoesUdtExists(null);
}
catch (NullReferenceException ex)
{
Assert.Contains("Object reference not set to an instance of an object.".ToLower(), ex.Message.ToLower());
}
}