Update test_example.py

Signed-off-by: xavier dupré <[email protected]>

Author: sdpython

tests/test_example.py

@@ -6,20 +6,21 @@
 import os
 import subprocess
 import unittest
-from common import check_opset_min_version, check_opset_max_version
+from common import check_opset_min_version, check_opset_max_version, check_tf_min_version
 
 
 class TestExample(unittest.TestCase):
     """test examples"""
 
     def run_example(self, name, expected=None):
+        "Executes one example."
         full = os.path.join(
             os.path.abspath(os.path.dirname(__file__)),
             "..", "examples", name)
         if not os.path.exists(full):
             raise FileNotFoundError(full)
         proc = subprocess.run(('python %s' % full).split(),
-                              capture_output=True)
+                              capture_output=True, check=True)
         self.assertEqual(0, proc.returncode)
         if expected is not None:
             out = proc.stdout.decode('ascii')
@@ -28,7 +29,7 @@ def run_example(self, name, expected=None):
         err = proc.stderr.decode('ascii')
         self.assertTrue(err is not None)
 
-    @check_tf_min_version("2.1", "use tf.keras")
+    @check_tf_min_version("2.0", "use tf.keras")
     @check_opset_min_version(12)
     @check_opset_max_version(13)
     def test_end2end_tfkeras(self):