Improve test coverage in create_task_params.
Improve test coverage in create_task_params.

Klaudit/lattice,felipeg48/lattice,SrinivasChilveri/lattice,cloudfoundry-incubator/ltc,datachand/lattice,davidwadden/lattice,svrc-pivotal/lattice,SrinivasChilveri/lattice,davidwadden/lattice-release,cloudfoundry-incubator/ltc,svrc-pivotal/lattice,datachand/lattice,svrc-pivotal/lattice,davidwadden/lattice-release,Klaudit/lattice,datachand/lattice,davidwadden/lattice,datachand/lattice,felipeg48/lattice,svrc-pivotal/lattice,Klaudit/lattice,SrinivasChilveri/lattice,SrinivasChilveri/lattice,Klaudit/lattice