integration/ct: move test operations to methods on test state
integration/ct: move test operations to methods on test state
google/trillian,google/trillian,Martin2112/trillian,AlCutter/trillian,gtank/trillian,RJPercival/trillian,codingllama/trillian,AlCutter/trillian,daviddrysdale/trillian,daviddrysdale/trillian,gdbelvin/trillian,gdbelvin/trillian,RJPercival/trillian,gdbelvin/trillian,gtank/trillian,Martin2112/trillian,Martin2112/trillian,codingllama/trillian,daviddrysdale/trillian