From 12390fd02f81a9bf8ebde9c6d2dff11571517d2d Mon Sep 17 00:00:00 2001
From: "david.wolfson" <david.wolfson@bjss.com>
Date: Mon, 7 Oct 2024 14:52:29 +0100
Subject: [PATCH] added characterisation test for single day

---
 go/gildedrose/gildedrose_test.go | 47 ++++++++++++++++++++++++++++++--
 go/texttest_fixture.go           |  4 +--
 2 files changed, 47 insertions(+), 4 deletions(-)

diff --git a/go/gildedrose/gildedrose_test.go b/go/gildedrose/gildedrose_test.go
index 8ce7a70f9d..70eaceddbb 100644
--- a/go/gildedrose/gildedrose_test.go
+++ b/go/gildedrose/gildedrose_test.go
@@ -11,9 +11,8 @@ func Test_Foo(t *testing.T) {
 	var items = []*gildedrose.Item{
 		{"foo", 0, 0},
 	}
-
 	expected := []*gildedrose.Item{
-		{"foo", -1, -1},
+		{"foo", -1, 0},
 	}
 
 	// Act
@@ -30,3 +29,47 @@ func Test_Foo(t *testing.T) {
 		t.Errorf("Quality: Expected %d but got %d ", expected[0].Quality, items[0].Quality)
 	}
 }
+
+func Test_oneDay(t *testing.T) {
+	// Arrange
+	var items = []*gildedrose.Item{
+		{"+5 Dexterity Vest", 10, 20},
+		{"Aged Brie", 2, 0},
+		{"Elixir of the Mongoose", 5, 7},
+		{"Sulfuras, Hand of Ragnaros", 0, 80},
+		{"Sulfuras, Hand of Ragnaros", -1, 80},
+		{"Backstage passes to a TAFKAL80ETC concert", 15, 20},
+		{"Backstage passes to a TAFKAL80ETC concert", 10, 49},
+		{"Backstage passes to a TAFKAL80ETC concert", 5, 49},
+		{"Conjured Mana Cake", 3, 6}, // <-- :O
+	}
+
+	var expected = []*gildedrose.Item{
+		{"+5 Dexterity Vest", 9, 19},
+		{"Aged Brie", 1, 1},
+		{"Elixir of the Mongoose", 4, 6},
+		{"Sulfuras, Hand of Ragnaros", 0, 80},
+		{"Sulfuras, Hand of Ragnaros", -1, 80},
+		{"Backstage passes to a TAFKAL80ETC concert", 14, 21},
+		{"Backstage passes to a TAFKAL80ETC concert", 9, 50},
+		{"Backstage passes to a TAFKAL80ETC concert", 4, 50},
+		{"Conjured Mana Cake", 2, 5}, // <-- :O
+	}
+
+	// Act
+	gildedrose.UpdateQuality(items)
+
+	// Assert
+	for i, item := range expected {
+		if items[i].Name != item.Name {
+			t.Errorf("Name: Expected %s but got %s ", item.Name, items[i].Name)
+		}
+		if items[i].SellIn != item.SellIn {
+			t.Errorf("%s - SellIn: Expected %d but got %d ", item.Name, item.SellIn, items[i].SellIn)
+		}
+		if items[i].Quality != item.Quality {
+			t.Errorf("%s - Quality: Expected %d but got %d ", item.Name, item.Quality, items[i].Quality)
+		}
+	}
+
+}
diff --git a/go/texttest_fixture.go b/go/texttest_fixture.go
index 5c96506493..cee5082f42 100644
--- a/go/texttest_fixture.go
+++ b/go/texttest_fixture.go
@@ -12,8 +12,8 @@ func main() {
 	fmt.Println("OMGHAI!")
 
 	var items = []*gildedrose.Item{
-		{"+5 Dexterity Vest", 10, 20},
-		{"Aged Brie", 2, 0},
+		{Name: "+5 Dexterity Vest", SellIn: 10, Quality: 20},
+		{Name: "Aged Brie", SellIn: 2, Quality: 0},
 		{"Elixir of the Mongoose", 5, 7},
 		{"Sulfuras, Hand of Ragnaros", 0, 80},
 		{"Sulfuras, Hand of Ragnaros", -1, 80},