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| author | Jean Boussier <jean.boussier@gmail.com> | 2020-08-19 11:29:54 +0200 |
|---|---|---|
| committer | Aaron Patterson <aaron.patterson@gmail.com> | 2020-08-19 08:08:56 -0700 |
| commit | aaf0e33c0a45e13d27e1009c7298fcb0a57c0d4f (patch) | |
| tree | 46893bf3c8748d669a59ae430d940a0c5fa26140 /test | |
| parent | 7f0ea20581082f627c2569fde3c69dc14a663b37 (diff) | |
| download | ruby-aaf0e33c0a45e13d27e1009c7298fcb0a57c0d4f.tar.gz | |
register_fstring: avoid duping the passed string when possible
If the passed string is frozen, bare and not shared, then there
is no need to duplicate it.
Ref: 4ab69ebbd7cef8539f687e1f948845d076461dc6
Ref: https://bugs.ruby-lang.org/issues/11386
Diffstat (limited to 'test')
| -rw-r--r-- | test/ruby/test_string.rb | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/test/ruby/test_string.rb b/test/ruby/test_string.rb index 489eee33dc..529b1be828 100644 --- a/test/ruby/test_string.rb +++ b/test/ruby/test_string.rb @@ -3187,6 +3187,22 @@ CODE assert_same(str, -bar, "uminus deduplicates [Feature #13077]") end + def test_uminus_frozen + # embedded + str1 = ("foobar" * 3).freeze + str2 = ("foobar" * 3).freeze + assert_not_same str1, str2 + assert_same str1, -str1 + assert_same str1, -str2 + + # regular + str1 = ("foobar" * 4).freeze + str2 = ("foobar" * 4).freeze + assert_not_same str1, str2 + assert_same str1, -str1 + assert_same str1, -str2 + end + def test_uminus_no_freeze_not_bare str = @cls.new("foo") assert_instance_of(@cls, -str) |