Update to ruby/spec@740ccc8

2 files changed, 30 insertions, 0 deletions

diff --git a/spec/ruby/core/thread/backtrace/limit_spec.rb b/spec/ruby/core/thread/backtrace/limit_spec.rb
new file mode 100644
index 0000000000..26a87a806c
--- /dev/null
+++ b/spec/ruby/core/thread/backtrace/limit_spec.rb
@@ -0,0 +1,15 @@
+require_relative '../../../spec_helper'
+
+ruby_version_is "3.1" do
+  describe "Thread::Backtrace.limit" do
+    it "returns maximum backtrace length set by --backtrace-limit command-line option" do
+      out = ruby_exe("print Thread::Backtrace.limit", options: "--backtrace-limit=2")
+      out.should == "2"
+    end
+
+    it "returns -1 when --backtrace-limit command-line option is not set" do
+      out = ruby_exe("print Thread::Backtrace.limit")
+      out.should == "-1"
+    end
+  end
+end
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..5a6c0c8632
--- /dev/null
+++ b/spec/ruby/core/thread/native_thread_id_spec.rb
@@ -0,0 +1,15 @@
+require_relative '../../spec_helper'
+
+ruby_version_is "3.1" 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
+  end
+end