describe WelcomeHelper do
  context "when generating the manage samples link" do
    it "should check the current user against the standard administrative roles" do
      @current_user = double("A user")
      @administrative_roles = %w{submitter reviewer admin}

      helper.stub!(:current_user).and_return(@current_user)

      helper.should_receive!(:manage_samples_link_for).with(@current_user, @administrative_roles)

      helper.manage_samples_link
    end

    it "should reject a user in roles other than the acceptable ones" do
      wrong_role_user = stub("A user in none of the acceptable roles")
      acceptable_roles = %w{a b c d e f g}
      acceptable_roles.each { | each |
        wrong_role_user.stub!(:role?).with(each).and_return(false)
      }

      helper.manage_samples_link_for(wrong_role_user, acceptable_roles).should be_nil
    end
  end
end