Merge pull request #100 from iamvery/tweak-maps-koan

Replace pipeline with composed function in maps koan

lib/koans/05_maps.ex

@@ -13,11 +13,6 @@ defmodule Maps do
                         age: 27 }
   end
 
-  koan "A map has keys and values" do
-    assert Map.keys(@person) |> Enum.sort == ___
-    assert Map.values(@person) |> Enum.sort == ___
-  end
-
   koan "Fetching a value returns a tuple with ok when it exists" do
     assert Map.fetch(@person, :age) == ___
   end
@@ -43,7 +38,7 @@ defmodule Maps do
 
   koan "Can remove pairs by key" do
     without_age = Map.delete(@person, :age)
-    assert Map.keys(without_age) |> Enum.sort == ___
+    assert Map.has_key?(without_age, :age) == ___
   end
 
   koan "Can merge maps" do

test/koans/maps_koans_test.exs

@@ -5,13 +5,12 @@ defmodule MapsTests do
   test "Maps" do
     answers = [
       "Jon",
-      {:multiple, [[:age, :last_name, :name], [27, "Jon", "Snow"]]},
       {:ok, 27},
       :error,
       {:ok, "Kayaking"},
       {:ok, 37},
       {:ok, 16},
-      [:last_name, :name],
+      false,
       %{:name => "Jon", :last_name => "Snow"},
       {:ok, "Baratheon"},
       %{ :name => "Jon", :last_name => "Snow"},