1 files changed, 128 insertions, 0 deletions
diff --git a/vendor/gems/microsoft_graph_mailer/spec/lib/microsoft_graph_mailer/delivery_spec.rb b/vendor/gems/microsoft_graph_mailer/spec/lib/microsoft_graph_mailer/delivery_spec.rb
new file mode 100644
index 00000000000..23096e75b76
--- /dev/null
+++ b/vendor/gems/microsoft_graph_mailer/spec/lib/microsoft_graph_mailer/delivery_spec.rb
@@ -0,0 +1,128 @@
+# frozen_string_literal: true
+
+require "spec_helper"
+
+require "securerandom"
+
+RSpec.describe MicrosoftGraphMailer::Delivery do
+  let(:microsoft_graph_settings) do
+    {
+      user_id: SecureRandom.hex,
+      tenant: SecureRandom.hex,
+      client_id: SecureRandom.hex,
+      client_secret: SecureRandom.hex,
+      azure_ad_endpoint: "https://test-azure_ad_endpoint",
+      graph_endpoint: "https://test-graph_endpoint"
+    }
+  end
+
+  subject { described_class.new(microsoft_graph_settings) }
+
+  describe ".new" do
+    it "sets #microsoft_graph_settings" do
+      expect(subject.microsoft_graph_settings).to eq(microsoft_graph_settings)
+    end
+
+    [:user_id, :tenant, :client_id, :client_secret].each do |setting|
+      it "raises MicrosoftGraphMailer::ConfigurationError when '#{setting}' is missing" do
+        microsoft_graph_settings[setting] = nil
+
+        expect { subject }
+          .to raise_error(MicrosoftGraphMailer::ConfigurationError, "'#{setting}' is missing")
+      end
+    end
+
+    it "sets azure_ad_endpoint setting to 'https://login.microsoftonline.com' when it is missing" do
+      microsoft_graph_settings[:azure_ad_endpoint] = nil
+
+      expect(subject.microsoft_graph_settings[:azure_ad_endpoint]).to eq("https://login.microsoftonline.com")
+    end
+
+    it "sets graph_endpoint setting to 'https://graph.microsoft.com' when it is missing" do
+      microsoft_graph_settings[:graph_endpoint] = nil
+
+      expect(subject.microsoft_graph_settings[:graph_endpoint]).to eq("https://graph.microsoft.com")
+    end
+  end
+
+  describe "#deliver!" do
+    let(:access_token) { SecureRandom.hex }
+
+    let(:message) do
+      Mail.new do
+        from "about@gitlab.com"
+
+        to "to@example.com"
+
+        cc "cc@example.com"
+
+        subject "GitLab Mission"
+
+        text_part do
+          body "It is GitLab's mission to make it so that everyone can contribute."
+        end
+
+        html_part do
+          content_type "text/html; charset=UTF-8"
+          body "It is GitLab's mission to make it so that <strong>everyone can contribute</strong>."
+        end
+
+        add_file fixture_path("attachments", "gitlab.txt")
+
+        add_file fixture_path("attachments", "gitlab_logo.png")
+      end
+    end
+
+    context "when token request is successful" do
+      before do
+        stub_token_request(microsoft_graph_settings: subject.microsoft_graph_settings, access_token: access_token, response_status: 200)
+      end
+
+      context "when send mail request returns response status 202" do
+        it "sends mail and returns an instance of OAuth2::Response" do
+          stub_send_mail_request(microsoft_graph_settings: subject.microsoft_graph_settings, access_token: access_token, message: message, response_status: 202)
+
+          expect(subject.deliver!(message)).to be_an_instance_of(OAuth2::Response)
+        end
+
+        it "sends mail including bcc field" do
+          message.bcc = "bcc@example.com"
+
+          stub_send_mail_request(microsoft_graph_settings: subject.microsoft_graph_settings, access_token: access_token, message: message, response_status: 202)
+
+          subject.deliver!(message)
+        end
+
+        it "does not change message[:bcc].include_in_headers" do
+          message.bcc = "bcc@example.com"
+          expected_message_bcc_include_in_headers = "42"
+          message[:bcc].include_in_headers = expected_message_bcc_include_in_headers
+
+          stub_send_mail_request(microsoft_graph_settings: subject.microsoft_graph_settings, access_token: access_token, message: message, response_status: 202)
+
+          subject.deliver!(message)
+
+          expect(message[:bcc].include_in_headers).to eq(expected_message_bcc_include_in_headers)
+        end
+      end
+
+      context "when send mail request returns response status other than 202" do
+        it "raises MicrosoftGraphMailer::DeliveryError" do
+          stub_send_mail_request(microsoft_graph_settings: subject.microsoft_graph_settings, access_token: access_token, message: message, response_status: 200)
+
+          expect { subject.deliver!(message) }.to raise_error(MicrosoftGraphMailer::DeliveryError)
+        end
+      end
+    end
+
+    context "when token request is not successful" do
+      before do
+        stub_token_request(microsoft_graph_settings: subject.microsoft_graph_settings, access_token: access_token, response_status: 503)
+      end
+
+      it "raises OAuth2::Error" do
+        expect { subject.deliver!(message) }.to raise_error(OAuth2::Error)
+      end
+    end
+  end
+end