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-rw-r--r--test/-ext-/debug/test_profile_frames.rb24
1 files changed, 24 insertions, 0 deletions
diff --git a/test/-ext-/debug/test_profile_frames.rb b/test/-ext-/debug/test_profile_frames.rb
index e0152247e7..d6ae953dd2 100644
--- a/test/-ext-/debug/test_profile_frames.rb
+++ b/test/-ext-/debug/test_profile_frames.rb
@@ -137,6 +137,30 @@ class TestProfileFrames < Test::Unit::TestCase
}
end
+ def test_matches_backtrace_locations_main_thread
+ assert_equal(Thread.current, Thread.main)
+
+ # Keep these in the same line, so the backtraces match exactly
+ backtrace_locations, profile_frames = [Thread.current.backtrace_locations, Bug::Debug.profile_frames(0, 100)]
+
+ assert_equal(backtrace_locations.size, profile_frames.size)
+
+ # The first entries are not going to match, since one is #backtrace_locations and the other #profile_frames
+ backtrace_locations.shift
+ profile_frames.shift
+
+ # The rest of the stack is expected to look the same...
+ backtrace_locations.zip(profile_frames).each.with_index do |(location, (path, absolute_path, _, base_label, _, _, _, _, _, _, lineno)), i|
+ next if absolute_path == "<cfunc>" # ...except for cfunc frames
+
+ err_msg = "#{i}th frame"
+ assert_equal(location.absolute_path, absolute_path, err_msg)
+ assert_equal(location.base_label, base_label, err_msg)
+ assert_equal(location.lineno, lineno, err_msg)
+ assert_equal(location.path, path, err_msg)
+ end
+ end
+
def test_ifunc_frame
bug11851 = '[ruby-core:72409] [Bug #11851]'
assert_ruby_status([], <<~'end;', bug11851) # do