1 files changed, 56 insertions, 0 deletions
diff --git a/spec/ruby/core/thread/name_spec.rb b/spec/ruby/core/thread/name_spec.rb
new file mode 100644
index 0000000000..0417d7a500
--- /dev/null
+++ b/spec/ruby/core/thread/name_spec.rb
@@ -0,0 +1,56 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+ruby_version_is '2.3' do
+  describe "Thread#name" do
+    before :each do
+      @thread = Thread.new {}
+    end
+
+    after :each do
+      @thread.join
+    end
+
+    it "is nil initially" do
+      @thread.name.should == nil
+    end
+
+    it "returns the thread name" do
+      @thread.name = "thread_name"
+      @thread.name.should == "thread_name"
+    end
+  end
+
+  describe "Thread#name=" do
+    before :each do
+      @thread = Thread.new {}
+    end
+
+    after :each do
+      @thread.join
+    end
+
+    it "can be set to a String" do
+      @thread.name = "new thread name"
+      @thread.name.should == "new thread name"
+    end
+
+    it "raises an ArgumentError if the name includes a null byte" do
+      lambda {
+        @thread.name = "new thread\0name"
+      }.should raise_error(ArgumentError)
+    end
+
+    it "can be reset to nil" do
+      @thread.name = nil
+      @thread.name.should == nil
+    end
+
+    it "calls #to_str to convert name to String" do
+      name = mock("Thread#name")
+      name.should_receive(:to_str).and_return("a thread name")
+
+      @thread.name = name
+      @thread.name.should == "a thread name"
+    end
+  end
+end