add test for Hash#dup

2026-06-08 16:11:16 +00:00 · 2014-02-14 13:26:19 +08:00
parent adbf1eba99
commit 7ab0506795
1 changed files with 7 additions and 0 deletions
@@ -34,6 +34,13 @@ assert('Hash#clear', '15.2.13.4.4') do
  assert_equal({ }, a)
 end

+assert('Hash#dup') do
+  a = { 'a' => 1 }
+  b = a.dup
+  a['a'] = 2
+  assert_equal(b, {'a' => 1})
+end
+
 assert('Hash#default', '15.2.13.4.5') do
  a = Hash.new
  b = Hash.new('abc')