From ca97177b99d0a7c9c1fbee2a6282ad95fe3d96c1 Mon Sep 17 00:00:00 2001
From: Tom Gurion <nagasaki45@gmail.com>
Date: Sat, 22 Apr 2017 22:32:29 +0100
Subject: [PATCH 1/2] Simplify atoms koans. Fix #185

---
 lib/koans/05_atoms.ex           | 18 ++----------------
 test/koans/atoms_koans_test.exs |  3 ---
 2 files changed, 2 insertions(+), 19 deletions(-)

diff --git a/lib/koans/05_atoms.ex b/lib/koans/05_atoms.ex
index b565a17..f6b56bb 100644
--- a/lib/koans/05_atoms.ex
+++ b/lib/koans/05_atoms.ex
@@ -3,29 +3,15 @@ defmodule Atoms do
 
   @intro "Atoms"
 
-  koan "Atoms are sort of like strings" do
+  koan "Atoms are constants where their name is their own value" do
     adam = :human
     assert adam == ___
   end
 
-  koan "Strings can be converted to atoms, and vice versa" do
-    assert String.to_atom("atomized") == ___
-    assert Atom.to_string(:stringified) == ___
-  end
-
   koan "It is surprising to find out that booleans are atoms" do
     assert is_atom(true) == ___
-    assert is_atom(false) == ___
+    assert is_boolean(false) == ___
     assert :true == ___
     assert :false == ___
   end
-
-  koan "Modules are also atoms" do
-    assert is_atom(String) == ___
-  end
-
-  koan "Functions can be called on the atom too" do
-    assert :"Elixir.String" == String
-    assert :"Elixir.String".upcase("hello") == ___
-  end
 end
diff --git a/test/koans/atoms_koans_test.exs b/test/koans/atoms_koans_test.exs
index 743d986..794a81e 100644
--- a/test/koans/atoms_koans_test.exs
+++ b/test/koans/atoms_koans_test.exs
@@ -5,10 +5,7 @@ defmodule AtomsTests do
   test "Atoms" do
     answers = [
       :human,
-      {:multiple, [:atomized, "stringified"]},
       {:multiple, [true, true, true, false]},
-      true,
-      "HELLO",
     ]
 
     test_all(Atoms, answers)

From e64394fbaa484db285d900b515cc5f5d983b846a Mon Sep 17 00:00:00 2001
From: Tom Gurion <nagasaki45@gmail.com>
Date: Sat, 22 Apr 2017 22:57:52 +0100
Subject: [PATCH 2/2] Add nil example to the atoms koans

---
 lib/koans/05_atoms.ex           | 5 +++++
 test/koans/atoms_koans_test.exs | 1 +
 2 files changed, 6 insertions(+)

diff --git a/lib/koans/05_atoms.ex b/lib/koans/05_atoms.ex
index f6b56bb..27d6cfb 100644
--- a/lib/koans/05_atoms.ex
+++ b/lib/koans/05_atoms.ex
@@ -14,4 +14,9 @@ defmodule Atoms do
     assert :true == ___
     assert :false == ___
   end
+
+  koan "Like booleans, the nil value is also an atom" do
+    assert is_atom(nil) == ___
+    assert :nil == ___
+  end
 end
diff --git a/test/koans/atoms_koans_test.exs b/test/koans/atoms_koans_test.exs
index 794a81e..37bbcdc 100644
--- a/test/koans/atoms_koans_test.exs
+++ b/test/koans/atoms_koans_test.exs
@@ -6,6 +6,7 @@ defmodule AtomsTests do
     answers = [
       :human,
       {:multiple, [true, true, true, false]},
+      {:multiple, [true, nil]}
     ]
 
     test_all(Atoms, answers)