Add more code to test_add_and_remove_reaction().
Add more code to test_add_and_remove_reaction().

This increases our line coverage a bit.

rht/zulip,jackrzhang/zulip,showell/zulip,kou/zulip,andersk/zulip,vaidap/zulip,andersk/zulip,shubhamdhama/zulip,punchagan/zulip,rishig/zulip,verma-varsha/zulip,zulip/zulip,mahim97/zulip,Galexrt/zulip,dhcrzf/zulip,Galexrt/zulip,jrowan/zulip,synicalsyntax/zulip,hackerkid/zulip,timabbott/zulip,vaidap/zulip,dhcrzf/zulip,tommyip/zulip,jackrzhang/zulip,dhcrzf/zulip,amanharitsh123/zulip,Galexrt/zulip,synicalsyntax/zulip,jackrzhang/zulip,jrowan/zulip,brockwhittaker/zulip,Galexrt/zulip,jackrzhang/zulip,eeshangarg/zulip,amanharitsh123/zulip,brainwane/zulip,mahim97/zulip,tommyip/zulip,verma-varsha/zulip,hackerkid/zulip,tommyip/zulip,Galexrt/zulip,vaidap/zulip,rht/zulip,rht/zulip,kou/zulip,rht/zulip,vabs22/zulip,synicalsyntax/zulip,hackerkid/zulip,jackrzhang/zulip,eeshangarg/zulip,punchagan/zulip,jackrzhang/zulip,rishig/zulip,amanharitsh123/zulip,brockwhittaker/zulip,vaidap/zulip,vabs22/zulip,andersk/zulip,hackerkid/zulip,shubhamdhama/zulip,dhcrzf/zulip,jrowan/zulip,eeshangarg/zulip,vaidap/zulip,vabs22/zulip,timabbott/zulip,eeshangarg/zulip,brockwhittaker/zulip,dhcrzf/zulip,synicalsyntax/zulip,rishig/zulip,brainwane/zulip,andersk/zulip,jrowan/zulip,rishig/zulip,punchagan/zulip,jackrzhang/zulip,rishig/zulip,amanharitsh123/zulip,timabbott/zulip,jrowan/zulip,andersk/zulip,brainwane/zulip,brainwane/zulip,eeshangarg/zulip,punchagan/zulip,brainwane/zulip,verma-varsha/zulip,zulip/zulip,punchagan/zulip,andersk/zulip,brainwane/zulip,showell/zulip,rishig/zulip,jrowan/zulip,shubhamdhama/zulip,hackerkid/zulip,shubhamdhama/zulip,mahim97/zulip,kou/zulip,rht/zulip,verma-varsha/zulip,timabbott/zulip,hackerkid/zulip,zulip/zulip,tommyip/zulip,zulip/zulip,amanharitsh123/zulip,synicalsyntax/zulip,tommyip/zulip,showell/zulip,synicalsyntax/zulip,brockwhittaker/zulip,synicalsyntax/zulip,punchagan/zulip,showell/zulip,kou/zulip,brainwane/zulip,vabs22/zulip,brockwhittaker/zulip,eeshangarg/zulip,zulip/zulip,zulip/zulip,timabbott/zulip,vabs22/zulip,zulip/zulip,mahim97/zulip,hackerkid/zulip,tommyip/zulip,kou/zulip,mahim97/zulip,shubhamdhama/zulip,punchagan/zulip,brockwhittaker/zulip,timabbott/zulip,showell/zulip,vaidap/zulip,verma-varsha/zulip,rishig/zulip,mahim97/zulip,rht/zulip,vabs22/zulip,showell/zulip,kou/zulip,showell/zulip,Galexrt/zulip,andersk/zulip,verma-varsha/zulip,shubhamdhama/zulip,Galexrt/zulip,shubhamdhama/zulip,tommyip/zulip,timabbott/zulip,dhcrzf/zulip,eeshangarg/zulip,amanharitsh123/zulip,dhcrzf/zulip,kou/zulip,rht/zulip