Add unicode tests

Author: fabianp

Makefile

@@ -9,6 +9,7 @@ test:
 	$(PYTHON) -m memory_profiler test/test_global.py
 	$(PYTHON) -m memory_profiler test/test_precision_command_line.py
 	$(PYTHON) -m memory_profiler test/test_gen.py
+	$(PYTHON) -m memory_profiler test/test_unicode.py
 	$(PYTHON) test/test_import.py
 	$(PYTHON) test/test_memory_usage.py
 	$(PYTHON) test/test_precision_import.py

test/test_unicode.py

@@ -0,0 +1,15 @@
+# coding: utf-8
+
+import time
+
+@profile
+def test_unicode():
+    # test when unicode is present
+    eval("β = 0")
+    return
+
+if __name__ == '__main__':
+    # run only for Python 3
+    import sys
+    if sys.version_info >= (3, 0):
+        test_unicode()