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+(in-package :cl-user)
+(defpackage transacc-tests
+  (:use :cl
+        :fiveam))
+(in-package :transacc-tests)
+
+(def-suite transacc-suite
+	:description "Test transacc")
+
+
+;;; TESTING COMMODITIES
+(def-suite* commodities-suite
+	:description "Test object and methods for commodities"
+	:in transacc-suite)
+
+;; we make sure creating a commodity returns one
+(test commodity-creation
+  (let ((c1 (commodities:new-commodity "apple" 1))
+		(c2 (commodities:new-commodity "pear" 4))
+		(c3 (commodities:new-commodity "petrol" -3))
+		(c4 (commodities:new-commodity "void" 0)))
+	(is (equal (type-of c1) 'commodities::commodity))
+	(is (equal (type-of c2) 'commodities::commodity))
+	(is (eq c3 nil))
+	(is (eq c4 nil))))
+
+;; we make sure a commodity created with given values
+;; in fact contains said values
+(test commodity-values
+  (let ((c (commodities:new-commodity "car" 10000)))
+	(is (equal (commodities:name c) "car"))
+	(is (= (commodities:price c) 10000))))
+
+
+;;; TESTING INVENTORY
+(def-suite* inventory-suite
+	:description "Test object and methods for inventory"
+	:in transacc-suite)
+
+;; test for creation of inventories
+(test inventory-creation
+  (let ((i1 (inventory:new-inventory 100))
+		(i2 (inventory:new-inventory 25))
+		(i3 (inventory:new-inventory -100))
+		(i4 (inventory:new-inventory 0)))
+	(is (eq (type-of i1) 'inventory::inventory))
+	(is (eq (type-of i2) 'inventory::inventory))
+	(is (eq i3 nil))
+	(is (eq i4 nil))))
+
+;; test for init values
+(test inventory-init-values
+  (let ((i (inventory:new-inventory 100)))
+	(is (= (inventory::size i) 100))
+	(is (= (inventory:filled i) 0))
+	(is (eq (inventory::items i) nil))))
+
+;; test add and substract
+(test inventory-add-and-substract
+  (let ((i (inventory:new-inventory 100))
+		(c (commodities:new-commodity "apple" 2)))
+	(inventory:add-item i c 10)
+	(is (= (inventory:filled i) 10))
+	(is (equal (inventory:remove-item i "apple" 4)
+			   (cons c 4)))))
+
+;; creating inventory adding