diff options
Diffstat (limited to 'spec/ruby/core/thread/native_thread_id_spec.rb')
-rw-r--r-- | spec/ruby/core/thread/native_thread_id_spec.rb | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/spec/ruby/core/thread/native_thread_id_spec.rb b/spec/ruby/core/thread/native_thread_id_spec.rb new file mode 100644 index 0000000000..17a08c8a15 --- /dev/null +++ b/spec/ruby/core/thread/native_thread_id_spec.rb @@ -0,0 +1,37 @@ +require_relative '../../spec_helper' + +ruby_version_is "3.1" do + platform_is :linux, :darwin, :windows, :freebsd do + describe "Thread#native_thread_id" do + it "returns an integer when the thread is alive" do + Thread.current.native_thread_id.should be_kind_of(Integer) + end + + it "returns nil when the thread is not running" do + t = Thread.new {} + t.join + t.native_thread_id.should == nil + end + + it "each thread has different native thread id" do + t = Thread.new { sleep } + Thread.pass until t.stop? + main_thread_id = Thread.current.native_thread_id + t_thread_id = t.native_thread_id + + if ruby_version_is "3.3" + # native_thread_id can be nil on a M:N scheduler + t_thread_id.should be_kind_of(Integer) if t_thread_id != nil + else + t_thread_id.should be_kind_of(Integer) + end + + main_thread_id.should_not == t_thread_id + + t.run + t.join + t.native_thread_id.should == nil + end + end + end +end |