Add record to track overridden limits

Before, we were relying on just changing the cards_count in account, but this
could create problems where the system to calculate the next card number fails due
to the unique constraint.

saas/test/models/account/billing_test.rb

@@ -15,35 +15,4 @@ class Account::BillingTest < ActiveSupport::TestCase
     account.subscription.update!(status: "active")
     assert_equal account.subscription, account.active_subscription
   end
-
-  test "detect nearing card limit" do
-    # Paid plans are never limited
-    accounts(:"37s").update_column(:cards_count, 1_000_000)
-    assert_not accounts(:"37s").nearing_plan_cards_limit?
-
-    # Free plan not near limit
-    accounts(:initech).update_column(:cards_count, 899)
-    assert_not accounts(:initech).nearing_plan_cards_limit?
-
-    # Free plan near limit
-    accounts(:initech).update_column(:cards_count, 900)
-    assert_not accounts(:initech).nearing_plan_cards_limit?
-
-    accounts(:initech).update_column(:cards_count, 901)
-    assert accounts(:initech).nearing_plan_cards_limit?
-  end
-
-  test "detect exceeding card limit" do
-    # Paid plans are never limited
-    accounts(:"37s").update_column(:cards_count, 1_000_000)
-    assert_not accounts(:"37s").exceeding_card_limit?
-
-    # Free plan under limit
-    accounts(:initech).update_column(:cards_count, 999)
-    assert_not accounts(:initech).exceeding_card_limit?
-
-    # Free plan over limit
-    accounts(:initech).update_column(:cards_count, 1001)
-    assert accounts(:initech).exceeding_card_limit?
-  end
 end

saas/test/models/account/limited_test.rb

@@ -0,0 +1,51 @@
+require "test_helper"
+
+class Account::LimitedTest < ActiveSupport::TestCase
+  test "detect nearing card limit" do
+    # Paid plans are never limited
+    accounts(:"37s").update_column(:cards_count, 1_000_000)
+    assert_not accounts(:"37s").nearing_plan_cards_limit?
+
+    # Free plan not near limit
+    accounts(:initech).update_column(:cards_count, 899)
+    assert_not accounts(:initech).nearing_plan_cards_limit?
+
+    # Free plan near limit
+    accounts(:initech).update_column(:cards_count, 900)
+    assert_not accounts(:initech).nearing_plan_cards_limit?
+
+    accounts(:initech).update_column(:cards_count, 901)
+    assert accounts(:initech).nearing_plan_cards_limit?
+  end
+
+  test "detect exceeding card limit" do
+    # Paid plans are never limited
+    accounts(:"37s").update_column(:cards_count, 1_000_000)
+    assert_not accounts(:"37s").exceeding_card_limit?
+
+    # Free plan under limit
+    accounts(:initech).update_column(:cards_count, 999)
+    assert_not accounts(:initech).exceeding_card_limit?
+
+    # Free plan over limit
+    accounts(:initech).update_column(:cards_count, 1001)
+    assert accounts(:initech).exceeding_card_limit?
+  end
+
+  test "override limits" do
+    account = accounts(:initech)
+    account.update_column(:cards_count, 1001)
+
+    assert account.exceeding_card_limit?
+    assert_equal 1001, account.billed_cards_count
+
+    account.override_limits card_count: 500
+    assert_not account.exceeding_card_limit?
+    assert_equal 500, account.billed_cards_count
+    assert_equal 1001, account.cards_count # original unchanged
+
+    account.reset_overridden_limits
+    assert account.exceeding_card_limit?
+    assert_equal 1001, account.billed_cards_count
+  end
+end