extended test case

diff --git a/tests/run/builtinnames.pyx b/tests/run/builtinnames.pyx
index ca41bbcef74166e875801e2546b320106c9a0822..28d3135791d3f096b8fc437a95477bf2aecbc6de 100644 (file)
--- a/tests/run/builtinnames.pyx
+++ b/tests/run/builtinnames.pyx
@@ -1,18 +1,22 @@
 __doc__ = u"""
->>> test_c(u'abc')
+>>> test_c('abc')
 fileabc
 typeabc
->>> print test_file_py(u'abc')
+>>> print test_file_py('abc')
 abc
->>> print range(u'abc')
+>>> print range('abc')
 rangeabc
 """
 
 
 def test_file_py(file):
+    assert isinstance(file, str), \
+        "not a string, found '%s' instead" % file.__class__.__name__
     return file
 
 cdef test_file_c(file):
+    assert isinstance(file, str), \
+        "not a string, found '%s' instead" % file.__class__.__name__
     return u'file' + file