add tests for items

go/gilded-rose_test.go

@@ -2,14 +2,49 @@ package main
 
 import "testing"
 
-func Test_Foo(t *testing.T) {
-	var items = []*Item{
-		&Item{"foo", 0, 0},
+type Expected [2]int
+
+type ItemTest struct {
+	*Item
+	Expected
+}
+
+func GetItemTestsComponents(itemTests []ItemTest) ([]*Item, []Expected) {
+	var items []*Item
+	var expected []Expected
+
+	for _, itemTest := range itemTests {
+		items = append(items, itemTest.Item)
+		expected = append(expected, itemTest.Expected)
 	}
 
+	return items, expected
+}
+
+func Test_Items(t *testing.T) {
+	var itemTests = []ItemTest{
+		{&Item{"Aged Brie", 0, 0}, Expected{-1, 2}},
+		{&Item{"Aged Brie", 5, 50}, Expected{4, 50}},
+		{&Item{"Backstage passes to a TAFKAL80ETC concert", 5, 49}, Expected{4, 50}},
+		{&Item{"Backstage passes to a TAFKAL80ETC concert", 0, 49}, Expected{-1, 0}},
+		{&Item{"Backstage passes to a TAFKAL80ETC concert", 4, 4}, Expected{3, 7}},
+		{&Item{"Backstage passes to a TAFKAL80ETC concert", 9, 4}, Expected{8, 6}},
+		{&Item{"Sulfuras, Hand of Ragnaros", 0, 80}, Expected{0, 80}},
+		{&Item{"Conjured Mana Cake", 3, 6}, Expected{2, 5}},
+		{&Item{"Acme Dynamite", 3, 6}, Expected{2, 5}},
+		{&Item{"Acme Dynamite", 0, 6}, Expected{-1, 4}},
+		{&Item{"Acme Dynamite", 0, 0}, Expected{-1, 0}},
+	}
+
+	items, expected := GetItemTestsComponents(itemTests)
+
 	UpdateQuality(items)
 
-	if items[0].name != "fixme" {
-		t.Errorf("Name: Expected %s but got %s ", "fixme", items[0].name)
+	for i, item := range items {
+		actual := [2]int{item.sellIn, item.quality}
+		if actual != expected[i] {
+			t.Errorf("Expected %+v but got %+v", expected[i], actual)
+		}
 	}
+
 }