* vm_trace.c: TracePoint#enable should not cause an error

  when it is already enabled. TracePoint#disable is too.
  [ruby-core:50561] [ruby-trunk - Bug #7513]
* test/ruby/test_settracefunc.rb: add tests.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38227 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 18 insertions, 0 deletions

diff --git a/test/ruby/test_settracefunc.rb b/test/ruby/test_settracefunc.rb
index 6ffb2dc6e4..6775b72b89 100644
--- a/test/ruby/test_settracefunc.rb
+++ b/test/ruby/test_settracefunc.rb
@@ -623,6 +623,16 @@ class TestSetTraceFunc < Test::Unit::TestCase
     }
     foo
     assert_equal([:foo], ary)
+
+    trace = TracePoint.new{}
+    begin
+      assert_equal(false, trace.enable)
+      assert_equal(true, trace.enable)
+      trace.enable{}
+      assert_equal(true, trace.enable)
+    ensure
+      trace.disable
+    end
   end
 
   def test_tracepoint_disable
@@ -637,6 +647,14 @@ class TestSetTraceFunc < Test::Unit::TestCase
     foo
     trace.disable
     assert_equal([:foo, :foo], ary)
+
+    trace = TracePoint.new{}
+    trace.enable{
+      assert_equal(true, trace.disable)
+      assert_equal(false, trace.disable)
+      trace.disable{}
+      assert_equal(false, trace.disable)
+    }
   end
 
   def test_tracepoint_enabled