tests: add participant test related with notification setting
tests: add participant test related with notification setting

rjeczalik/koding,sinan/koding,usirin/koding,koding/koding,usirin/koding,andrewjcasal/koding,mertaytore/koding,alex-ionochkin/koding,andrewjcasal/koding,alex-ionochkin/koding,koding/koding,acbodine/koding,koding/koding,acbodine/koding,mertaytore/koding,sinan/koding,andrewjcasal/koding,usirin/koding,acbodine/koding,acbodine/koding,acbodine/koding,jack89129/koding,szkl/koding,gokmen/koding,jack89129/koding,gokmen/koding,jack89129/koding,sinan/koding,andrewjcasal/koding,cihangir/koding,koding/koding,gokmen/koding,kwagdy/koding-1,cihangir/koding,drewsetski/koding,gokmen/koding,gokmen/koding,szkl/koding,sinan/koding,usirin/koding,alex-ionochkin/koding,mertaytore/koding,cihangir/koding,alex-ionochkin/koding,gokmen/koding,jack89129/koding,andrewjcasal/koding,kwagdy/koding-1,rjeczalik/koding,jack89129/koding,cihangir/koding,drewsetski/koding,jack89129/koding,jack89129/koding,drewsetski/koding,acbodine/koding,usirin/koding,sinan/koding,szkl/koding,cihangir/koding,rjeczalik/koding,kwagdy/koding-1,drewsetski/koding,drewsetski/koding,kwagdy/koding-1,koding/koding,szkl/koding,koding/koding,jack89129/koding,drewsetski/koding,kwagdy/koding-1,alex-ionochkin/koding,mertaytore/koding,szkl/koding,sinan/koding,szkl/koding,usirin/koding,acbodine/koding,mertaytore/koding,andrewjcasal/koding,cihangir/koding,drewsetski/koding,alex-ionochkin/koding,koding/koding,mertaytore/koding,rjeczalik/koding,rjeczalik/koding,sinan/koding,gokmen/koding,rjeczalik/koding,kwagdy/koding-1,gokmen/koding,andrewjcasal/koding,andrewjcasal/koding,rjeczalik/koding,mertaytore/koding,alex-ionochkin/koding,koding/koding,acbodine/koding,mertaytore/koding,kwagdy/koding-1,rjeczalik/koding,drewsetski/koding,cihangir/koding,alex-ionochkin/koding,usirin/koding,cihangir/koding,usirin/koding,sinan/koding,szkl/koding,kwagdy/koding-1,szkl/koding