Create a "published" event if a card is created published

This isn't the normal workflow in the app, but this problem will show
up if we create cards programmatically (e.g., the seeds)

app/models/card/statuses.rb

@@ -4,6 +4,8 @@ module Card::Statuses
   included do
     enum :status, %w[ creating drafted published ].index_by(&:itself)
 
+    after_create -> { track_event :published }, if: :published?
+
     scope :published_or_drafted_by, ->(user) { where(status: :published).or(where(status: :drafted, creator: user)) }
   end
 

test/models/card/statuses_test.rb

@@ -25,6 +25,33 @@ class Card::StatusesTest < ActiveSupport::TestCase
     assert_includes Card.published_or_drafted_by(users(:jz)), card
   end
 
+  test "an event is created when a card is created in the published state" do
+    Current.session = sessions(:david)
+
+    assert_no_difference(-> { Event.count }) do
+      collections(:writebook).cards.create! creator: users(:kevin), title: "Draft Card"
+    end
+
+    assert_difference(-> { Event.count } => +1) do
+      @card = collections(:writebook).cards.create! creator: users(:kevin), title: "Published Card", status: :published
+    end
+
+    assert_equal @card, Event.last.eventable
+    assert_equal "card_published", Event.last.action
+  end
+
+  test "an event is created when a card is published" do
+    Current.session = sessions(:david)
+
+    card = collections(:writebook).cards.create! creator: users(:kevin), title: "Published Card"
+    assert_difference(-> { Event.count } => +1) do
+      card.publish
+    end
+
+    assert_equal card, Event.last.eventable
+    assert_equal "card_published", Event.last.action
+  end
+
   test "can_recover_abandoned_creation?" do
     card = collections(:writebook).cards.create! creator: users(:kevin)
     unsaved_card = collections(:writebook).cards.new creator: users(:kevin)