tests: Test minor dispatch events.
tests: Test minor dispatch events.

These events just call another function. This covers
attachments, invites_changed, and submessage.

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