Added tests for team members

models/team_members_delete.go

@@ -2,6 +2,15 @@ package models
 
 // Delete deletes a user from a team
 func (tm *TeamMember) Delete() (err error) {
+
+	total, err := x.Where("team_id = ?", tm.TeamID).Count(&TeamMember{})
+	if err != nil {
+		return
+	}
+	if total == 1 {
+		return ErrCannotDeleteLastTeamMember{tm.TeamID, tm.UserID}
+	}
+
 	_, err = x.Where("team_id = ? AND user_id = ?", tm.TeamID, tm.UserID).Delete(&TeamMember{})
 	return
 }