1 files changed, 54 insertions, 0 deletions
diff --git a/test/-ext-/debug/test_profile_frames.rb b/test/-ext-/debug/test_profile_frames.rb
new file mode 100644
index 0000000000..05e4706eb6
--- /dev/null
+++ b/test/-ext-/debug/test_profile_frames.rb
@@ -0,0 +1,54 @@
+require 'test/unit'
+require '-test-/debug'
+
+class C
+  def self.bar(block)
+    block.call
+  end
+
+  def foo(block)
+    self.class.bar(block)
+  end
+end
+
+class TestProfileFrames < Test::Unit::TestCase
+  def test_profile_frames
+    frames = Fiber.new{
+      Fiber.yield C.new.foo(lambda{ Bug::Debug.profile_frames(0, 10) })
+    }.resume
+
+    assert_equal(4, frames.size)
+
+    labels = [
+      "block (2 levels) in test_profile_frames",
+      "bar",
+      "foo",
+      "block in test_profile_frames",
+    ]
+    base_labels = [
+      "test_profile_frames",
+      "bar",
+      "foo",
+      "test_profile_frames",
+    ]
+    classes = [
+      TestProfileFrames,
+      C, # singleton method
+      C,
+      TestProfileFrames,
+    ]
+    singleton_method_p = [
+      false, true, false, false, false,
+    ]
+
+    frames.each.with_index{|(path, absolute_path, label, base_label, first_lineno, classpath, singleton_p), i|
+      err_msg = "#{i}th frame"
+      assert_equal(__FILE__, path, err_msg)
+      assert_equal(__FILE__, absolute_path, err_msg)
+      assert_equal(labels[i], label, err_msg)
+      assert_equal(base_labels[i], base_label, err_msg)
+      assert_equal(classes[i].to_s, classpath, err_msg)
+      assert_equal(singleton_method_p[i], singleton_p, err_msg)
+    }
+  end
+end