The US patent office has placed a ban on patents covering over unity devices, perpetual motion machines, and inventions based on pseudoscience. LENR inventions have been ban.
Rossi may be doing these tests to provide proof that his device works to support his patent application. Jo Papp was awarded two patents for the Papp engine when he supplied proof that his engine worked to the US Patent office even though his invention was an over-unity device. Rossi does not understand how his invention works yet. The LENR engineering problems will be overcome well beyond the time that the scientific operating principles are sufficiently understood in detail. Rossi has sold his IP to a US company. He has not scam incentive to keep the fraud going, so why do a six month test in the near future? Rossi needs proof of function to get a patent. The decision to demonstrate function must have been made by the new IP owner in order to get US patent protection. Rossi cannot make business decisions now.