add unit tests for NilClass

395c0087 · Akira Kuroda · ba7ea507 · 395c0087
Commit 395c0087 authored Mar 17, 2014 by Akira Kuroda
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test/t/nil.rb test/t/nil.rb +9 -0

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--- a/test/t/nil.rb
+++ b/test/t/nil.rb
@@ -5,6 +5,15 @@ assert('NilClass', '15.2.4') do
  assert_equal Class, NilClass.class
 end

+assert('NilClass', '15.2.4.1') do
+  assert_equal NilClass, nil.class
+  assert_false NilClass.method_defined? :new
+end
+
+assert('NilClass superclass', '15.2.4.2') do
+  assert_equal Object, NilClass.superclass
+end
+
 assert('NilClass#&', '15.2.4.3.1') do
  assert_false nil.&(true)
  assert_false nil.&(nil)