1 files changed, 27 insertions, 0 deletions
diff --git a/spec/ruby/core/tracepoint/defined_class_spec.rb b/spec/ruby/core/tracepoint/defined_class_spec.rb
new file mode 100644
index 0000000000..53c86a8210
--- /dev/null
+++ b/spec/ruby/core/tracepoint/defined_class_spec.rb
@@ -0,0 +1,27 @@
+require_relative '../../spec_helper'
+require_relative 'fixtures/classes'
+
+describe 'TracePoint#defined_class' do
+  it 'returns class or module of the method being called' do
+    last_class_name = nil
+    TracePoint.new(:call) do |tp|
+      next unless TracePointSpec.target_thread?
+      last_class_name = tp.defined_class
+    end.enable do
+      TracePointSpec::B.new.foo
+      last_class_name.should.equal?(TracePointSpec::B)
+
+      TracePointSpec::B.new.bar
+      last_class_name.should.equal?(TracePointSpec::A)
+
+      c = TracePointSpec::C.new
+      last_class_name.should.equal?(TracePointSpec::C)
+
+      c.foo
+      last_class_name.should.equal?(TracePointSpec::B)
+
+      c.bar
+      last_class_name.should.equal?(TracePointSpec::A)
+    end
+  end
+end