From 94f4a0e91ee7077bcb4391a6f754c6ec58e78a15 Mon Sep 17 00:00:00 2001
From: ko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 29 Dec 2018 16:44:09 +0000
Subject: `TracePoint#enable(target_thraed:)` [Feature #15473]

* vm_trace.c (tracepoint_enable_m): `TracePoint#enable` supports
  `target_thread:` keyword to filter a target thread.
  [Feature #15473]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66640 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_settracefunc.rb | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

(limited to 'test')

diff --git a/test/ruby/test_settracefunc.rb b/test/ruby/test_settracefunc.rb
index 2ada093f8d..6c07bf90f6 100644
--- a/test/ruby/test_settracefunc.rb
+++ b/test/ruby/test_settracefunc.rb
@@ -2115,4 +2115,42 @@ class TestSetTraceFunc < Test::Unit::TestCase
     }
     assert_equal [], events
   end
+
+  def test_enable_target_thread
+    events = []
+    TracePoint.new(:line) do |tp|
+      events << Thread.current
+    end.enable(target_thread: Thread.current) do
+      a = 1
+      Thread.new{
+        b = 2
+        c = 3
+      }.join
+      d = 4
+    end
+    assert_equal Array.new(3){Thread.current}, events
+
+    events = []
+    tp = TracePoint.new(:line) do |tp|
+      events << Thread.current
+    end
+
+    q1 = Queue.new
+    q2 = Queue.new
+
+    th = Thread.new{
+      q1 << :ok; q2.pop
+      t1 = 1
+      t2 = 2
+    }
+    q1.pop
+    tp.enable(target_thread: th) do
+      q2 << 1
+      a = 1
+      b = 2
+      th.join
+    end
+
+    assert_equal Array.new(2){th}, events
+  end
 end
-- 
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