A. Runs test
B. Maurer’s Universal statistical test
C. Frequency Test
D. On-bit test
I had been asked this question during a job interview.
Question is from Pseudorandom Number Generators and Stream Ciphers in portion Pseudorandom Number Generation and Stream Ciphers and More Block Ciphers of Cryptograph & Network Security
To explain I would say: A CSPRBG is defined as one that passes the one-bit test.