1 files changed, 42 insertions, 0 deletions
diff --git a/spec/ruby/core/thread/list_spec.rb b/spec/ruby/core/thread/list_spec.rb
new file mode 100644
index 0000000000..b8deb98260
--- /dev/null
+++ b/spec/ruby/core/thread/list_spec.rb
@@ -0,0 +1,42 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+require File.expand_path('../fixtures/classes', __FILE__)
+
+describe "Thread.list" do
+  it "includes the current and main thread" do
+    Thread.list.should include(Thread.current)
+    Thread.list.should include(Thread.main)
+  end
+
+  it "includes threads of non-default thread groups" do
+    t = Thread.new { sleep }
+    begin
+      ThreadGroup.new.add(t)
+      Thread.list.should include(t)
+    ensure
+      t.kill
+      t.join
+    end
+  end
+
+  it "does not include deceased threads" do
+    t = Thread.new { 1; }
+    t.join
+    Thread.list.should_not include(t)
+  end
+
+  it "includes waiting threads" do
+    c = Channel.new
+    t = Thread.new { c.receive }
+    begin
+      Thread.pass while t.status and t.status != 'sleep'
+      Thread.list.should include(t)
+    ensure
+      c << nil
+      t.join
+    end
+  end
+end
+
+describe "Thread.list" do
+  it "needs to be reviewed for spec completeness"
+end