1 files changed, 32 insertions, 8 deletions
diff --git a/tests/build/cythonize_options.srctree b/tests/build/cythonize_options.srctree
index 56e38be61..0dc7f724f 100644
--- a/tests/build/cythonize_options.srctree
+++ b/tests/build/cythonize_options.srctree
@@ -1,3 +1,5 @@
+# mode: run
+
 PYTHON setup.py build_ext --inplace
 PYTHON -c "import a"
 
@@ -5,11 +7,35 @@ PYTHON -c "import a"
 
 from Cython.Build.Dependencies import cythonize
 
+import sys
 from distutils.core import setup
+try:
+    # io.StringIO cannot handle 'str' in Py2
+    from StringIO import StringIO
+except ImportError:
+    from io import StringIO
+
+old_stderr = sys.stderr
+captured = sys.stderr = StringIO()
+try:
+    setup(
+      ext_modules = cythonize(
+          "*.pyx", include_path=['subdir'],
+          compiler_directives={'cdivision': True},
+          show_all_warnings=True,
+      ),
+    )
+    output = sys.stderr.getvalue()
+finally:
+    sys.stderr = old_stderr
+    sys.stderr.write(captured.getvalue())
+
+assert "Unraisable exception in function" in output, output
+
 
-setup(
-  ext_modules = cythonize("*.pyx", include_path=['subdir'], compiler_directives={'cdivision': True}),
-)
+######## subdir/x.pxd ########
+
+######## subdir/y.pxi ########
 
 ######## a.pyx ########
 
@@ -22,8 +48,6 @@ def mod_int_c(int a, int b):
 
 assert mod_int_c(-1, 10) < 0
 
-
-######## subdir/x.pxd ########
-
-######## subdir/y.pxi ########
-
+# unraisable exceptions should produce a warning
+cdef int no_exc_propagate() noexcept:
+    raise TypeError()