Fixes

test/jobs/invitations_mailer_test.rb

@@ -0,0 +1,123 @@
+require "test_helper"
+
+class InvitationsMailerTest < ActionMailer::TestCase
+  setup do
+    @user = users(:alice)
+    @invitation_mail = InvitationsMailer.invite_user(@user)
+  end
+
+  test "should queue invitation email job" do
+    # Note: In test environment, deliver_later might not enqueue jobs the same way
+    # This test focuses on the mail delivery functionality
+    assert_nothing_raised do
+      InvitationsMailer.invite_user(@user).deliver_later
+    end
+  end
+
+  test "should deliver invitation email successfully" do
+    assert_emails 1 do
+      InvitationsMailer.invite_user(@user).deliver_now
+    end
+  end
+
+  test "should have correct email content" do
+    email = @invitation_mail
+
+    assert_equal "You're invited to join Clinch", email.subject
+    assert_equal [@user.email_address], email.to
+    assert_equal [], email.cc
+    assert_equal [], email.bcc
+    # From address is configured in ApplicationMailer
+    assert_not_nil email.from
+    assert email.from.is_a?(Array)
+  end
+
+  test "should include user data in email body" do
+    email = @invitation_mail
+    # Use text_part to get the readable content
+    email_text = email.text_part&.decoded || email.body.decoded
+
+    # Should include invitation-related text
+    assert_includes email_text, "invited"
+    assert_includes email_text, "Clinch"
+  end
+
+  test "should handle different user statuses" do
+    # Test with pending user
+    pending_user = users(:bob)
+    pending_user.status = :pending_invitation
+    pending_user.save!
+
+    assert_emails 1 do
+      InvitationsMailer.invite_user(pending_user).deliver_now
+    end
+  end
+
+  test "should queue multiple invitation emails" do
+    users = [users(:alice), users(:bob)]
+
+    # Test that multiple deliveries don't raise errors
+    assert_nothing_raised do
+      users.each { |user| InvitationsMailer.invite_user(user).deliver_later }
+    end
+
+    # Test synchronous delivery to verify functionality
+    assert_emails 2 do
+      users.each { |user| InvitationsMailer.invite_user(user).deliver_now }
+    end
+  end
+
+  test "should handle job with invalid user" do
+    # Test behavior when user doesn't exist
+    invalid_user_id = User.maximum(:id) + 1000
+
+    # This should not raise an error immediately (job is queued)
+    assert_nothing_raised do
+      assert_enqueued_jobs 1 do
+        # Create a mail with non-persisted user for testing
+        temp_user = User.new(id: invalid_user_id, email_address: "invalid@test.com")
+        InvitationsMailer.invite_user(temp_user).deliver_later
+      end
+    end
+  end
+
+  test "should respect mailer configuration" do
+    # Test that the mailer inherits from ApplicationMailer properly
+    assert InvitationsMailer < ApplicationMailer
+    assert_respond_to InvitationsMailer, :default
+  end
+
+  test "should handle concurrent email deliveries" do
+    # Simulate concurrent invitation deliveries
+    users = User.limit(3)
+
+    # Test that multiple deliveries don't raise errors
+    assert_nothing_raised do
+      users.each do |user|
+        InvitationsMailer.invite_user(user).deliver_later
+      end
+    end
+
+    # Test synchronous delivery to verify functionality
+    assert_emails users.count do
+      users.each do |user|
+        InvitationsMailer.invite_user(user).deliver_now
+      end
+    end
+  end
+
+  test "should have proper email headers" do
+    email = @invitation_mail
+
+    # Test common email headers
+    assert_not_nil email.message_id
+    assert_not_nil email.date
+
+    # Test content-type
+    if email.html_part
+      assert_includes email.content_type, "text/html"
+    elsif email.text_part
+      assert_includes email.content_type, "text/plain"
+    end
+  end
+end