Update product_test.rb

test/product_test.rb

@@ -57,4 +57,43 @@ class ProductTest < Test::Unit::TestCase
 
     assert_equal('100.00 - 199.00', @product.price_range)
   end
+  
+  def test_deprecated_variant_inventory_fields_are_included_in_2019_07
+    ShopifyAPI::Base.api_version = '2019-07'
+    variant = @product.variants.first
+    assert variant.as_json.include?('inventory_quantity')
+  end
+
+  def test_deprecated_variant_inventory_fields_are_removed_in_2020_01
+    ShopifyAPI::Base.api_version = '2020-01'
+    variant = @product.variants.first
+    refute variant.as_json.include?('inventory_quantity')
+  end
+
+  def test_deprecated_inventory_fields_are_removed_in_2020_01
+    ShopifyAPI::Base.api_version = '2020-01'
+    refute @product.as_json.include?('total_inventory')
+  end
+
+  def test_setting_product_total_inventory_passes_in_api_before_2019_10
+    ShopifyAPI::Base.api_version = '2019-07'
+    fake("products/632910392", {:body => load_fixture('product')})
+    @product.total_inventory = 8
+  end
+
+  def test_setting_product_total_inventory_fails_in_2019_10_api
+    ShopifyAPI::Base.api_version = '2019-10'
+    fake("products/632910392", {:body => load_fixture('product')})
+    assert_raises(ShopifyAPI::ValidationException) do
+      @product.total_inventory = 8
+    end
+  end
+
+  def test_setting_product_total_inventory_fails_in_the_unstable_api
+    ShopifyAPI::Base.api_version = :unstable
+    fake("products/632910392", {:body => load_fixture('product')})
+    assert_raises(ShopifyAPI::ValidationException) do
+      @product.total_inventory = 8
+    end
+  end
 end