BOGOF discount for ZERO2W

2026-07-15 10:57:09 -04:00
parent dadfeed768
commit d21373035e
3 changed files with 70 additions and 3 deletions
@@ -34,4 +34,22 @@ class TestCheckout < Minitest::Test
  def test_that_an_empty_checkout_total_is_zero
    assert_equal 0.00, @checkout.total
  end
+
+  # Discounts
+
+  def test_that_bogof_applied
+    4.times do
+      @checkout.add(:ZERO2W)
+    end
+
+    assert_equal 30.00, @checkout.total
+  end
+
+  def test_that_bogof_applied_with_odd_number
+    5.times do
+      @checkout.add(:ZERO2W)
+    end
+
+    assert_equal 45.00, @checkout.total
+  end
 end