Thread#to_s is not same as #inspect on old version.

Thread#to_s returns simple Object#to_s until Ruby 2.4.

1 files changed, 5 insertions, 0 deletions

diff --git a/spec/ruby/core/thread/shared/to_s.rb b/spec/ruby/core/thread/shared/to_s.rb
index c3718cef88..7bc7234c85 100644
--- a/spec/ruby/core/thread/shared/to_s.rb
+++ b/spec/ruby/core/thread/shared/to_s.rb
@@ -5,6 +5,11 @@ describe :thread_to_s, shared: true do
   ruby_version_is(''..."2.7"){ sep = '@' }
 
   it "returns a description including file and line number" do
+    ruby_version_is(''...'2.5') do
+      # Thread#to_s is not same as Thread#inspect until Ruby 2.4.
+      skip if @method == :to_s
+    end
+
     Thread.new { "hello" }.send(@method).should =~ /^#<Thread:([^ ]*?)#{sep}#{Regexp.escape __FILE__}:#{__LINE__ } \w+>$/
   end