SAP Message SABP_UNIT100 - The class pool <&1> contains no executable unit tests; see long text

Diagnosis
The active version of the class pool does not contain any
executable unit test.

Procedure
Check if the test class satisfies the criteria to be an executable unittest. In case the test class satisfies all criteria but you get thismessage activate the program again.

Further_hints
See ABAP Unit documentation.