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Website : rimsha.abasa.com
: / var / canvas / spec / lib / lti /
Filename : privacy_level_expander_spec.rb
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# frozen_string_literal: true

#
# Copyright (C) 2017 Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.
#

describe Lti::PrivacyLevelExpander do
  include ExternalToolsSpecHelper
  let(:course) { course_model }
  let(:user) { course_with_student(course:).user }
  let(:placement) { "resource_selection" }
  let(:tool) { new_valid_tool(course) }
  let(:launch_url) { "http://www.test.com/launch" }
  let(:variable_expander) do
    Lti::VariableExpander.new(
      course.root_account,
      course,
      double(request: { body: "body content" }),
      {
        current_user: user,
        current_pseudonym: user.pseudonyms.first,
        tool:
      }
    )
  end

  before do
    tool.custom_fields = { context_id: "$Context.id" }
    tool.save!
  end

  let(:helper) { Lti::PrivacyLevelExpander.new(placement, variable_expander) }

  describe "expanded_variables" do
    it "expands custom fields" do
      expected_params = {
        "custom_context_id" => Lti::Asset.opaque_identifier_for(course)
      }

      expect(helper.expanded_variables!(tool.set_custom_fields(placement))).to include expected_params
    end

    it "includes supported parameters" do
      expected_params = {
        "context_label" => course.course_code
      }

      expect(helper.expanded_variables!({})).to include expected_params
    end
  end

  describe "supported_parameters" do
    context "public privacy level" do
      let(:tool) do
        tool = new_valid_tool(course)
        tool.workflow_state = "public"
        tool.save!
        tool
      end

      let(:helper) { Lti::PrivacyLevelExpander.new(placement, variable_expander) }

      it "includes all supported parameters if privacy level is public" do
        expected_params = %w[com.instructure.contextLabel
                             Person.sourcedId
                             CourseOffering.sourcedId
                             Person.email.primary
                             Person.name.given
                             Person.name.full
                             Person.name.family]
        expect(helper.supported_parameters).to match_array expected_params
      end
    end

    context "name only privacy level" do
      let(:tool) do
        tool = new_valid_tool(course)
        tool.workflow_state = "name_only"
        tool.save!
        tool
      end

      let(:helper) { Lti::PrivacyLevelExpander.new(placement, variable_expander) }

      it "inlcudes anonymous and name only params if privacy level is name only" do
        expected_params = %w[com.instructure.contextLabel
                             Person.name.given
                             Person.name.full
                             Person.name.family]
        expect(helper.supported_parameters).to match_array expected_params
      end
    end

    context "email only privacy level" do
      let(:tool) do
        tool = new_valid_tool(course)
        tool.workflow_state = "email_only"
        tool.save!
        tool
      end

      let(:helper) { Lti::PrivacyLevelExpander.new(placement, variable_expander) }

      it "includes anonymous and email only params if privacy level is email only" do
        expected_params = %w[com.instructure.contextLabel
                             Person.email.primary]
        expect(helper.supported_parameters).to match_array expected_params
      end
    end

    context "anonymous privacy level" do
      let(:tool) do
        tool = new_valid_tool(course)
        tool.workflow_state = "anonymous"
        tool.save!
        tool
      end

      let(:helper) { Lti::PrivacyLevelExpander.new(placement, variable_expander) }

      it "includes anonymouse parameters only if privacy level is anonymous" do
        expected_params = %w[com.instructure.contextLabel]
        expect(helper.supported_parameters).to match_array expected_params
      end
    end
  end
end