invitation emails

test/mailers/invitation_mailer_test.rb

@@ -0,0 +1,38 @@
+require "test_helper"
+
+class InvitationMailerTest < ActionMailer::TestCase
+  test "invite sends email with correct details" do
+    user = users(:pending_invitation)
+    mail = InvitationMailer.invite(user)
+
+    assert_equal "You've been invited to join Sanasto Wiki", mail.subject
+    assert_equal [ user.email ], mail.to
+    assert_match user.name, mail.body.encoded
+    assert_match user.email, mail.body.encoded
+    assert_match user.role.titleize, mail.body.encoded
+  end
+
+  test "invite includes invitation link" do
+    user = users(:pending_invitation)
+    mail = InvitationMailer.invite(user)
+
+    assert_match "invitations/#{user.invitation_token}", mail.body.encoded
+  end
+
+  test "invite includes expiry date" do
+    user = users(:pending_invitation)
+    mail = InvitationMailer.invite(user)
+
+    expires_at = user.invitation_sent_at + User::INVITATION_TOKEN_EXPIRY
+    assert_match expires_at.strftime("%B"), mail.body.encoded
+  end
+
+  test "invite has both HTML and text parts" do
+    user = users(:pending_invitation)
+    mail = InvitationMailer.invite(user)
+
+    assert_equal 2, mail.parts.size
+    assert_equal "text/plain", mail.text_part.content_type.split(";").first
+    assert_equal "text/html", mail.html_part.content_type.split(";").first
+  end
+end

test/mailers/previews/invitation_mailer_preview.rb

@@ -0,0 +1,7 @@
+# Preview all emails at http://localhost:3000/rails/mailers/invitation_mailer
+class InvitationMailerPreview < ActionMailer::Preview
+  # Preview this email at http://localhost:3000/rails/mailers/invitation_mailer/invite
+  def invite
+    InvitationMailer.invite
+  end
+end