From 7a043f63fba3b79d4d4ae528f957938c316f6ed7 Mon Sep 17 00:00:00 2001
From: Daniele Megna <megna.dany@gmail.com>
Date: Sun, 20 Aug 2017 16:43:24 +0200
Subject: [PATCH 1/2] Added elixir build folder to ignored files

---
 .gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/.gitignore b/.gitignore
index b56f217b..ab29156c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .idea/workspace.xml
 *.pyc
 /perl6/lib/.precomp
+/elixir/_build/

From a379eadb379927808822e8bcf7014c2706647621 Mon Sep 17 00:00:00 2001
From: Daniele Megna <megna.dany@gmail.com>
Date: Sun, 20 Aug 2017 16:51:06 +0200
Subject: [PATCH 2/2] Test covering of update_item function

---
 elixir/test/gilded_rose_test.exs | 97 +++++++++++++++++++++++++++++++-
 1 file changed, 96 insertions(+), 1 deletion(-)

diff --git a/elixir/test/gilded_rose_test.exs b/elixir/test/gilded_rose_test.exs
index b0db3381..d3017ab6 100644
--- a/elixir/test/gilded_rose_test.exs
+++ b/elixir/test/gilded_rose_test.exs
@@ -1,6 +1,101 @@
 defmodule GildedRoseTest do
   use ExUnit.Case
+  import GildedRose
 
-  test "begin the journey of refactoring" do
+  test "Items Quality decreases by 1" do
+    assert_update_item(
+      %Item{name: "Item name", sell_in: 9, quality: 3},
+      %Item{name: "Item name", sell_in: 8, quality: 2}
+    )
+    assert_update_item(
+      %Item{name: "Item name", sell_in: 1, quality: 7},
+      %Item{name: "Item name", sell_in: 0, quality: 6}
+    )
   end
+
+  test "Once the sell by date has passed, Quality degrades twice as fast" do
+    assert_update_item(
+      %Item{name: "Item name", sell_in: 0, quality: 5},
+      %Item{name: "Item name", sell_in: -1, quality: 3}
+    )
+    assert_update_item(
+      %Item{name: "Item name", sell_in: -1, quality: 8},
+      %Item{name: "Item name", sell_in: -2, quality: 6}
+    )
+  end
+
+  test "The Quality of an item is never negative" do
+    assert_update_item(
+      %Item{name: "Item name", sell_in: 4, quality: 0},
+      %Item{name: "Item name", sell_in: 3, quality: 0}
+    )
+    assert_update_item(
+      %Item{name: "Item name", sell_in: 0, quality: 0},
+      %Item{name: "Item name", sell_in: -1, quality: 0}
+    )
+    assert_update_item(
+      %Item{name: "Item name", sell_in: -2, quality: 0},
+      %Item{name: "Item name", sell_in: -3, quality: 0}
+    )
+  end
+
+	test "Aged Brie actually increases in Quality the older it gets" do
+    assert_update_item(
+      %Item{name: "Aged Brie", sell_in: 12, quality: 8},
+      %Item{name: "Aged Brie", sell_in: 11, quality: 9}
+    )
+    assert_update_item(
+      %Item{name: "Aged Brie", sell_in: 4, quality: 6},
+      %Item{name: "Aged Brie", sell_in: 3, quality: 7}
+    )
+    assert_update_item(
+      %Item{name: "Aged Brie", sell_in: 1, quality: 10},
+      %Item{name: "Aged Brie", sell_in: 0, quality: 11}
+    )
+  end
+
+  test "[DISCOVERED] Quality of Aged Brie increases by 2 once the sell by date has passed" do
+    assert_update_item(
+      %Item{name: "Aged Brie", sell_in: 0, quality: 7},
+      %Item{name: "Aged Brie", sell_in: -1, quality: 9}
+    )
+    assert_update_item(
+      %Item{name: "Aged Brie", sell_in: -2, quality: 9},
+      %Item{name: "Aged Brie", sell_in: -3, quality: 11}
+    )
+  end
+
+	test "The Quality of an item is never more than 50" do
+    assert_update_item(
+      %Item{name: "Aged Brie", sell_in: 7, quality: 50},
+      %Item{name: "Aged Brie", sell_in: 6, quality: 50}
+    )
+    assert_update_item(
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 9, quality: 50},
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 8, quality: 50}
+    )
+  end
+
+  test "Quality of backstage passes increases by 2 when there are 10 days or less" do
+    assert_update_item(
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 9, quality: 1},
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 8, quality: 3}
+    )
+  end
+
+  test "Quality of backstag drops to 0 after the concert" do
+    assert_update_item(
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: 0, quality: 12},
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: -1, quality: 0}
+    )
+    assert_update_item(
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: -2, quality: 10},
+      %Item{name: "Backstage passes to a TAFKAL80ETC concert", sell_in: -3, quality: 0}
+    )
+  end
+
+  defp assert_update_item(item, expected) do
+    assert update_item(item) == expected
+  end
+
 end