diff --git a/tests/test_korean.py b/tests/test_korean.py
new file mode 100644
index 0000000..2aa8c73
--- /dev/null
+++ b/tests/test_korean.py
@@ -0,0 +1,10 @@
+# -*- coding: utf-8 -*-
+import pytest
+import pysnooper
+
+@pysnooper.snoop()
+def func(x):
+    return x + 1
+def test_korean(x):
+    assert func(x) != x+1, '성공!'
+test_korean(0)
diff --git a/tests/test_nesting.py b/tests/test_nesting.py
new file mode 100644
index 0000000..cc7dbcc
--- /dev/null
+++ b/tests/test_nesting.py
@@ -0,0 +1,14 @@
+import time
+import pysnooper
+
+snoop = pysnooper.snoop()
+
+def test():
+        with snoop:
+            a = 10
+            with snoop:
+                time.sleep(1.0)
+            a = 20
+            time.sleep(1.0)
+
+test()