Go: Extracts texttest_feature.go from main Gilded Rose, write test similar to other languages.

go/README.md

@@ -3,7 +3,7 @@
 - Run :
 
 ```shell
-go run gilded-rose.go
+go run texttest_feature.go gilded-rose.go
 ```
 
 - Run tests :

go/gilded-rose.go

@@ -1,28 +1,11 @@
 package main
 
-import "fmt"
-
 type Item struct {
 	name            string
 	sellIn, quality int
 }
 
-var items = []Item{
-	Item{"+5 Dexterity Vest", 10, 20},
-	Item{"Aged Brie", 2, 0},
-	Item{"Elixir of the Mongoose", 5, 7},
-	Item{"Sulfuras, Hand of Ragnaros", 0, 80},
-	Item{"Backstage passes to a TAFKAL80ETC concert", 15, 20},
-	Item{"Conjured Mana Cake", 3, 6},
-}
-
-func main() {
-	fmt.Println("OMGHAI!")
-	// fmt.Print(items)
-	GildedRose()
-}
-
-func GildedRose() {
+func UpdateQuality(items []*Item) {
 	for i := 0; i < len(items); i++ {
 
 		if items[i].name != "Aged Brie" && items[i].name != "Backstage passes to a TAFKAL80ETC concert" {

go/gilded-rose_test.go

@@ -2,6 +2,14 @@ package main
 
 import "testing"
 
-func Test_GildedRose(t *testing.T) {
-	main()
+func Test_Foo(t *testing.T) {
+	var items = []*Item{
+		&Item{"foo", 0, 0},
+	}
+
+	UpdateQuality(items)
+
+	if items[0].name != "fixme" {
+		t.Errorf("Name: Expected %s but got %s ", "fixme", items[0].name)
+	}
 }

go/texttest_feature.go

@@ -0,0 +1,44 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+)
+
+func main() {
+	fmt.Println("OMGHAI!")
+
+	var items = []*Item{
+		&Item{"+5 Dexterity Vest", 10, 20},
+		&Item{"Aged Brie", 2, 0},
+		&Item{"Elixir of the Mongoose", 5, 7},
+		&Item{"Sulfuras, Hand of Ragnaros", 0, 80},
+		&Item{"Sulfuras, Hand of Ragnaros", -1, 80},
+		&Item{"Backstage passes to a TAFKAL80ETC concert", 15, 20},
+		&Item{"Backstage passes to a TAFKAL80ETC concert", 10, 49},
+		&Item{"Backstage passes to a TAFKAL80ETC concert", 5, 49},
+		&Item{"Conjured Mana Cake", 3, 6}, // <-- :O
+	}
+
+	days := 2
+	var err error
+	if len(os.Args) > 1 {
+		days, err = strconv.Atoi(os.Args[1])
+		if err != nil {
+			fmt.Println(err.Error())
+			os.Exit(1)
+		}
+		days++
+	}
+
+	for day := 0; day < days; day++ {
+		fmt.Printf("-------- day %d --------\n", day)
+		fmt.Println("name, sellIn, quality")
+		for i := 0; i < len(items); i++ {
+			fmt.Println(items[i])
+		}
+		fmt.Println("")
+		UpdateQuality(items)
+	}
+}