compose.js: Add coverage for finish() function.
compose.js: Add coverage for finish() function.

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