Tables already created to insert into a cassandra keyspace to test

I want to test my cluster a little, how data replicates, etc.

I have a cassandra cluster formed by 5 machines ( centos 7 & cassie 3.4 on them).

My question :

Are there anywhere tables already created for testing that i can import in my db in some keyspace?

If yes, please be kind enough and explain me how to import them into a keyspace and where from to take them.

Thank you in advance!