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| author | Aaron Patterson <tenderlove@ruby-lang.org> | 2019-04-23 12:10:52 -0700 |
|---|---|---|
| committer | Aaron Patterson <tenderlove@ruby-lang.org> | 2019-04-23 14:21:15 -0700 |
| commit | 75061f46ae646e821e9228caa5e3b7f23fa609f0 (patch) | |
| tree | 9ea4054d0594295bfcf347c4a820fe4b3508ec24 /test/ruby/test_gc_compact.rb | |
| parent | cf930985da1ae15b66577ec8286e54ad04ccda78 (diff) | |
| download | ruby-75061f46ae646e821e9228caa5e3b7f23fa609f0.tar.gz | |
Fix complex hash keys to work with compaction
For example when an array containing objects is a hash key, the contents
of the array may move which can cause the hash value for the array to
change. This commit makes the default `hash` value based off the
object id, so the hash value will remain stable.
Fixes test/shell/test_command_processor.rb
Diffstat (limited to 'test/ruby/test_gc_compact.rb')
| -rw-r--r-- | test/ruby/test_gc_compact.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/test/ruby/test_gc_compact.rb b/test/ruby/test_gc_compact.rb index a1e037b70b..b705f601da 100644 --- a/test/ruby/test_gc_compact.rb +++ b/test/ruby/test_gc_compact.rb @@ -121,4 +121,11 @@ class TestGCCompact < Test::Unit::TestCase skip "couldn't get objects to collide" if collisions == 0 assert_operator collisions, :>, 0 end + + def test_complex_hash_keys + list_of_objects = big_list + hash = list_of_objects.hash + GC.verify_compaction_references + assert_equal hash, list_of_objects.hash + end end |