finish lesson 04

lib/koans/04_atoms.ex

@@ -6,18 +6,18 @@ defmodule Atoms do
 
   koan "Atoms are constants where their name is their own value" do
     adam = :human
-    assert adam == ___
+    assert adam == :human
   end
 
   koan "It is surprising to find out that booleans are atoms" do
-    assert is_atom(true) == ___
-    assert is_boolean(false) == ___
-    assert true == ___
-    assert false == ___
+    assert is_atom(true) == true
+    assert is_boolean(false) == true
+    assert true == true
+    assert false == false
   end
 
   koan "Like booleans, the nil value is also an atom" do
-    assert is_atom(nil) == ___
-    assert nil == ___
+    assert is_atom(nil) == true
+    assert nil == nil
   end
 end