Hash#inspect with colon style

1 files changed, 27 insertions, 0 deletions

diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index f60ba0cffd..8219abc678 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -869,6 +869,33 @@ class TestHash < Test::Unit::TestCase
     $, = nil
   end
 
+  def test_inspect
+    no_quote = '{a: 1, a!: 1, a?: 1}'
+    quote0 = '{"": 1}'
+    quote1 = '{"0": 1, "!": 1, "%": 1, "&": 1, "*": 1, "+": 1, "-": 1, "/": 1, "<": 1, ">": 1, "^": 1, "`": 1, "|": 1, "~": 1}'
+    quote2 = '{"@a": 1, "$a": 1, "+@": 1, "a=": 1, "[]": 1}'
+    quote3 = '{"a\"b": 1, "@@a": 1, "<=>": 1, "===": 1, "[]=": 1}'
+    assert_equal(no_quote, eval(no_quote).inspect)
+    assert_equal(quote0, eval(quote0).inspect)
+    assert_equal(quote1, eval(quote1).inspect)
+    assert_equal(quote2, eval(quote2).inspect)
+    assert_equal(quote3, eval(quote3).inspect)
+    begin
+      enc = Encoding.default_external
+      Encoding.default_external = Encoding::ASCII
+      utf8_ascii_hash = '{"\\u3042": 1}'
+      assert_equal(eval(utf8_ascii_hash).inspect, utf8_ascii_hash)
+      Encoding.default_external = Encoding::UTF_8
+      utf8_hash = "{\u3042: 1}"
+      assert_equal(eval(utf8_hash).inspect, utf8_hash)
+      Encoding.default_external = Encoding::Windows_31J
+      sjis_hash = "{\x87]: 1}".force_encoding('sjis')
+      assert_equal(eval(sjis_hash).inspect, sjis_hash)
+    ensure
+      Encoding.default_external = enc
+    end
+  end
+
   def test_update
     h1 = @cls[ 1 => 2, 2 => 3, 3 => 4 ]
     h2 = @cls[ 2 => 'two', 4 => 'four' ]