boutique-inventory

elixir/boutique-inventory/test/boutique_inventory_test.exs

@@ -0,0 +1,150 @@
+defmodule BoutiqueInventoryTest do
+  use ExUnit.Case
+
+  describe "sort_by_price/1" do
+    @tag task_id: 1
+    test "works for an empty inventory" do
+      assert BoutiqueInventory.sort_by_price([]) == []
+    end
+
+    @tag task_id: 1
+    test "sorts items by price" do
+      assert BoutiqueInventory.sort_by_price([
+               %{price: 65, name: "Maxi Yellow Summer Dress", quantity_by_size: %{}},
+               %{price: 60, name: "Cream Linen Pants", quantity_by_size: %{}},
+               %{price: 33, name: "Straw Hat", quantity_by_size: %{}}
+             ]) == [
+               %{price: 33, name: "Straw Hat", quantity_by_size: %{}},
+               %{price: 60, name: "Cream Linen Pants", quantity_by_size: %{}},
+               %{price: 65, name: "Maxi Yellow Summer Dress", quantity_by_size: %{}}
+             ]
+    end
+
+    @tag task_id: 1
+    test "the order of items of equal price is preserved" do
+      assert BoutiqueInventory.sort_by_price([
+               %{price: 65, name: "Maxi Yellow Summer Dress", quantity_by_size: %{}},
+               %{price: 60, name: "Cream Linen Pants", quantity_by_size: %{}},
+               %{price: 33, name: "Straw Hat", quantity_by_size: %{}},
+               %{price: 60, name: "Brown Linen Pants", quantity_by_size: %{}}
+             ]) == [
+               %{price: 33, name: "Straw Hat", quantity_by_size: %{}},
+               %{price: 60, name: "Cream Linen Pants", quantity_by_size: %{}},
+               %{price: 60, name: "Brown Linen Pants", quantity_by_size: %{}},
+               %{price: 65, name: "Maxi Yellow Summer Dress", quantity_by_size: %{}}
+             ]
+    end
+  end
+
+  describe "with_missing_price/1" do
+    @tag task_id: 2
+    test "works for an empty inventory" do
+      assert BoutiqueInventory.with_missing_price([]) == []
+    end
+
+    @tag task_id: 2
+    test "filters out items that do have a price" do
+      assert BoutiqueInventory.with_missing_price([
+               %{name: "Red Flowery Top", price: 50, quantity_by_size: %{}},
+               %{name: "Purple Flowery Top", price: nil, quantity_by_size: %{}},
+               %{name: "Bamboo Socks Avocado", price: 10, quantity_by_size: %{}},
+               %{name: "Bamboo Socks Palm Trees", price: 10, quantity_by_size: %{}},
+               %{name: "Bamboo Socks Kittens", price: nil, quantity_by_size: %{}}
+             ]) == [
+               %{name: "Purple Flowery Top", price: nil, quantity_by_size: %{}},
+               %{name: "Bamboo Socks Kittens", price: nil, quantity_by_size: %{}}
+             ]
+    end
+  end
+
+  describe "update_names/3" do
+    @tag task_id: 3
+    test "works for an empty inventory" do
+      assert BoutiqueInventory.update_names([], "T-Shirt", "Tee") == []
+    end
+
+    @tag task_id: 3
+    test "replaces the word in all the names" do
+      assert BoutiqueInventory.update_names(
+               [
+                 %{name: "Bambo Socks Avocado", price: 10, quantity_by_size: %{}},
+                 %{name: "3x Bambo Socks Palm Trees", price: 26, quantity_by_size: %{}},
+                 %{name: "Red Sequin Top", price: 87, quantity_by_size: %{}}
+               ],
+               "Bambo",
+               "Bamboo"
+             ) == [
+               %{name: "Bamboo Socks Avocado", price: 10, quantity_by_size: %{}},
+               %{name: "3x Bamboo Socks Palm Trees", price: 26, quantity_by_size: %{}},
+               %{name: "Red Sequin Top", price: 87, quantity_by_size: %{}}
+             ]
+    end
+
+    @tag task_id: 3
+    test "replaces all the instances of the word within one name" do
+      assert BoutiqueInventory.update_names(
+               [
+                 %{name: "GO! GO! GO! Tee", price: 8, quantity_by_size: %{}}
+               ],
+               "GO!",
+               "Go!"
+             ) == [
+               %{name: "Go! Go! Go! Tee", price: 8, quantity_by_size: %{}}
+             ]
+    end
+  end
+
+  describe "increase_quantity/2" do
+    @tag task_id: 4
+    test "works for an empty quantity map" do
+      assert BoutiqueInventory.increase_quantity(
+               %{
+                 name: "Long Black Evening Dress",
+                 price: 105,
+                 quantity_by_size: %{}
+               },
+               1
+             ) == %{
+               name: "Long Black Evening Dress",
+               price: 105,
+               quantity_by_size: %{}
+             }
+    end
+
+    @tag task_id: 4
+    test "increases quantity of an item" do
+      assert BoutiqueInventory.increase_quantity(
+               %{
+                 name: "Green Swimming Shorts",
+                 price: 46,
+                 quantity_by_size: %{s: 1, m: 2, l: 4, xl: 1}
+               },
+               3
+             ) == %{
+               name: "Green Swimming Shorts",
+               price: 46,
+               quantity_by_size: %{s: 4, m: 5, l: 7, xl: 4}
+             }
+    end
+  end
+
+  describe "total_quantity/1" do
+    @tag task_id: 5
+    test "works for an empty quantity map" do
+      assert BoutiqueInventory.total_quantity(%{
+               name: "Red Denim Pants",
+               price: 77,
+               quantity_by_size: %{}
+             }) == 0
+    end
+
+    @tag task_id: 5
+    test "sums up total quantity" do
+      assert BoutiqueInventory.total_quantity(%{
+               name: "Black Denim Skirt",
+               price: 50,
+               quantity_by_size: %{s: 4, m: 11, l: 6, xl: 8}
+             }) == 29
+    end
+  end
+end

elixir/boutique-inventory/test/test_helper.exs

@@ -0,0 +1,2 @@
+ExUnit.start()
+ExUnit.configure(exclude: :pending, trace: true, seed: 0)