testInventoryAPI: move inventory valuation methods in a dedicated test class

This should not be in test inventory list.

bt5/tmp_work/TestTemplateItem/portal_components/test.erp5.testInventoryAPI.py

@@ -2112,6 +2112,7 @@ class TestInventoryList(InventoryAPITestCase):
     self.assertEqual(4*5, other_node_inventory.total_price)
 
 
+class TestInventoryAssetPriceValuationMethod(InventoryAPITestCase):
   def test_inventory_asset_price(self):
     # examples from http://accountinginfo.com/study/inventory/inventory-120.htm
     movement_list = [
@@ -4493,6 +4494,7 @@ def test_suite():
   suite = unittest.TestSuite()
   suite.addTest(unittest.makeSuite(TestInventory))
   suite.addTest(unittest.makeSuite(TestInventoryList))
+  suite.addTest(unittest.makeSuite(TestInventoryAssetPriceValuationMethod))
   suite.addTest(unittest.makeSuite(TestMovementHistoryList))
   suite.addTest(unittest.makeSuite(TestInventoryStat))
   suite.addTest(unittest.makeSuite(TestNextNegativeInventoryDate))