* testing/lisp/test-ob-python.el (test-ob-python/colnames-yes-header-argument): (test-ob-python/colnames-yes-header-argument-again): (test-ob-python/colnames-nil-header-argument): (test-ob-python/colnames-no-header-argument-again): (test-ob-python/colnames-no-header-argument): (test-ob-python/session-multiline): (test-ob-python/insert-necessary-blank-line-when-sending-code-to-interpreter): Slightly refactor tests.