1 files changed, 131 insertions, 0 deletions
diff --git a/spec/ruby/core/symbol/inspect_spec.rb b/spec/ruby/core/symbol/inspect_spec.rb
new file mode 100644
index 0000000000..f2269996af
--- /dev/null
+++ b/spec/ruby/core/symbol/inspect_spec.rb
@@ -0,0 +1,131 @@
+require_relative '../../spec_helper'
+
+describe "Symbol#inspect" do
+  symbols = {
+    fred:         ":fred",
+    :fred?     => ":fred?",
+    :fred!     => ":fred!",
+    :BAD!      => ":BAD!",
+    :_BAD!     => ":_BAD!",
+    :$ruby     => ":$ruby",
+    :@ruby     => ":@ruby",
+    :@@ruby    => ":@@ruby",
+    :"$ruby!"  => ":\"$ruby!\"",
+    :"$ruby?"  => ":\"$ruby?\"",
+    :"@ruby!"  => ":\"@ruby!\"",
+    :"@ruby?"  => ":\"@ruby?\"",
+    :"@@ruby!" => ":\"@@ruby!\"",
+    :"@@ruby?" => ":\"@@ruby?\"",
+
+    :$-w       => ":$-w",
+    :"$-ww"    => ":\"$-ww\"",
+    :"$+"      => ":$+",
+    :"$~"      => ":$~",
+    :"$:"      => ":$:",
+    :"$?"      => ":$?",
+    :"$<"      => ":$<",
+    :"$_"      => ":$_",
+    :"$/"      => ":$/",
+    :"$'"      => ":$'",
+    :"$\""     => ":$\"",
+    :"$$"      => ":$$",
+    :"$."      => ":$.",
+    :"$,"      => ":$,",
+    :"$`"      => ":$`",
+    :"$!"      => ":$!",
+    :"$;"      => ":$;",
+    :"$\\"     => ":$\\",
+    :"$="      => ":$=",
+    :"$*"      => ":$*",
+    :"$>"      => ":$>",
+    :"$&"      => ":$&",
+    :"$@"      => ":$@",
+    :"$1234"   => ":$1234",
+
+    :-@        => ":-@",
+    :+@        => ":+@",
+    :%         => ":%",
+    :&         => ":&",
+    :*         => ":*",
+    :**        => ":**",
+    :"/"       => ":/",     # lhs quoted for emacs happiness
+    :<         => ":<",
+    :<=        => ":<=",
+    :<=>       => ":<=>",
+    :==        => ":==",
+    :===       => ":===",
+    :=~        => ":=~",
+    :>         => ":>",
+    :>=        => ":>=",
+    :>>        => ":>>",
+    :[]        => ":[]",
+    :[]=       => ":[]=",
+    :"\<\<"    => ":\<\<",
+    :^         => ":^",
+    :"`"       => ":`",     # for emacs, and justice!
+    :~         => ":~",
+    :|         => ":|",
+
+    :"!"       => ":!",
+    :"!="      => ":!=",
+    :"!~"      => ":!~",
+    :"\$"      => ":\"$\"", # for justice!
+    :"&&"      => ":\"&&\"",
+    :"'"       => ":\"\'\"",
+    :","       => ":\",\"",
+    :"."       => ":\".\"",
+    :".."      => ":\"..\"",
+    :"..."     => ":\"...\"",
+    :":"       => ":\":\"",
+    :"::"      => ":\"::\"",
+    :";"       => ":\";\"",
+    :"="       => ":\"=\"",
+    :"=>"      => ":\"=>\"",
+    :"\?"      => ":\"?\"", # rawr!
+    :"@"       => ":\"@\"",
+    :"||"      => ":\"||\"",
+    :"|||"     => ":\"|||\"",
+    :"++"      => ":\"++\"",
+
+    :"\""      => ":\"\\\"\"",
+    :"\"\""    => ":\"\\\"\\\"\"",
+
+    :"9"       => ":\"9\"",
+    :"foo bar" => ":\"foo bar\"",
+    :"*foo"    => ":\"*foo\"",
+    :"foo "    => ":\"foo \"",
+    :" foo"    => ":\" foo\"",
+    :" "       => ":\" \"",
+
+    :"ê"       => [":ê", ":\"\\u00EA\""],
+    :"测"      => [":测", ":\"\\u6D4B\""],
+    :"🦊"      => [":🦊", ":\"\\u{1F98A}\""],
+  }
+
+  expected_by_encoding = Encoding::default_external == Encoding::UTF_8 ? 0 : 1
+  symbols.each do |input, expected|
+    expected = expected[expected_by_encoding] if expected.is_a?(Array)
+    it "returns self as a symbol literal for #{expected}" do
+      input.inspect.should == expected
+    end
+  end
+
+  it "quotes BINARY symbols" do
+    sym = "foo\xA4".b.to_sym
+    sym.inspect.should == ':"foo\xA4"'
+  end
+
+  it "quotes symbols in non-ASCII-compatible encodings" do
+    Encoding.list.reject(&:ascii_compatible?).reject(&:dummy?).each do |encoding|
+      sym = "foo".encode(encoding).to_sym
+      sym.inspect.should == ':"foo"'
+    end
+  end
+
+  it "quotes and escapes symbols in dummy encodings" do
+    Encoding.list.select(&:dummy?).each do |encoding|
+      sym = "abcd".dup.force_encoding(encoding).to_sym
+      sym.inspect.should == ':"\x61\x62\x63\x64"'
+    end
+  end
+end