RowMutation rm = new RowMutation(ks.name, dk.key);
for (int i = 0; i < 100; i++)
rm.add(new QueryPath(cfm.cfName, null, ByteBufferUtil.bytes(("col" + i))), ByteBufferUtil.bytes("anyvalue"), 1L);
rm.apply();
new DropKeyspace(ks.name).apply();
assert DatabaseDescriptor.getTableDefinition(ks.name) == null;
}