tests: Add create_test_bot() helper function.
tests: Add create_test_bot() helper function.

mahim97/zulip,Galexrt/zulip,brockwhittaker/zulip,eeshangarg/zulip,rishig/zulip,kou/zulip,showell/zulip,mahim97/zulip,eeshangarg/zulip,eeshangarg/zulip,brainwane/zulip,shubhamdhama/zulip,hackerkid/zulip,zulip/zulip,rishig/zulip,brainwane/zulip,punchagan/zulip,jackrzhang/zulip,brainwane/zulip,rishig/zulip,tommyip/zulip,dhcrzf/zulip,rishig/zulip,rishig/zulip,shubhamdhama/zulip,dhcrzf/zulip,rht/zulip,hackerkid/zulip,andersk/zulip,zulip/zulip,rht/zulip,kou/zulip,eeshangarg/zulip,brockwhittaker/zulip,tommyip/zulip,zulip/zulip,eeshangarg/zulip,jackrzhang/zulip,synicalsyntax/zulip,showell/zulip,brainwane/zulip,Galexrt/zulip,jackrzhang/zulip,rht/zulip,eeshangarg/zulip,brainwane/zulip,tommyip/zulip,dhcrzf/zulip,andersk/zulip,brainwane/zulip,punchagan/zulip,showell/zulip,zulip/zulip,kou/zulip,zulip/zulip,kou/zulip,Galexrt/zulip,synicalsyntax/zulip,jackrzhang/zulip,synicalsyntax/zulip,punchagan/zulip,jackrzhang/zulip,timabbott/zulip,andersk/zulip,rht/zulip,synicalsyntax/zulip,showell/zulip,shubhamdhama/zulip,Galexrt/zulip,andersk/zulip,andersk/zulip,mahim97/zulip,kou/zulip,hackerkid/zulip,rht/zulip,timabbott/zulip,jackrzhang/zulip,hackerkid/zulip,timabbott/zulip,synicalsyntax/zulip,punchagan/zulip,rishig/zulip,timabbott/zulip,timabbott/zulip,Galexrt/zulip,hackerkid/zulip,brockwhittaker/zulip,dhcrzf/zulip,tommyip/zulip,dhcrzf/zulip,andersk/zulip,shubhamdhama/zulip,shubhamdhama/zulip,tommyip/zulip,zulip/zulip,kou/zulip,mahim97/zulip,shubhamdhama/zulip,showell/zulip,dhcrzf/zulip,mahim97/zulip,zulip/zulip,jackrzhang/zulip,dhcrzf/zulip,brockwhittaker/zulip,andersk/zulip,Galexrt/zulip,synicalsyntax/zulip,eeshangarg/zulip,shubhamdhama/zulip,hackerkid/zulip,punchagan/zulip,punchagan/zulip,synicalsyntax/zulip,mahim97/zulip,showell/zulip,punchagan/zulip,kou/zulip,showell/zulip,rht/zulip,timabbott/zulip,hackerkid/zulip,tommyip/zulip,brockwhittaker/zulip,rht/zulip,brainwane/zulip,brockwhittaker/zulip,timabbott/zulip,Galexrt/zulip,rishig/zulip,tommyip/zulip