skip the blob failed model tests

Author: hwangdeyu

tests/keras2onnx_applications/nightly_build/test_transformers.py

@@ -21,9 +21,20 @@
 if os.environ.get('ENABLE_FULL_TRANSFORMER_TEST', '0') != '0':
     enable_transformer_test = True
 
+def check_bloburl_access():
+    url = r'https://lotus.blob.core.windows.net/converter-models/transformer_tokenizer/'
+    try:
+        response = urllib.request.urlopen(url)
+        if response.getcode() != 200:
+            return False
+    except urllib.error.URLError:
+        return False
+    return True
+
 
 @unittest.skipIf(is_tensorflow_older_than('2.1.0'),
                  "Transformers conversion need tensorflow 2.1.0+")
+@unittest.skipIf(check_bloburl_access(), "Model blob url can't access")
 class TestTransformers(unittest.TestCase):
 
     text_str = 'The quick brown fox jumps over lazy dog.'

tests/keras2onnx_applications/nightly_build/test_yolov3.py

@@ -25,6 +25,16 @@
 tmp_path = os.path.join(working_path, 'temp')
 
 
+def check_bloburl_access(url):
+    try:
+        response = urllib.request.urlopen(url)
+        if response.getcode() != 200:
+            return False
+    except urllib.error.URLError:
+        return False
+    return True
+
+
 class TestYoloV3(unittest.TestCase):
 
     def setUp(self):
@@ -45,6 +55,8 @@ def post_compute(self, all_boxes, all_scores, indices):
 
     @unittest.skipIf(StrictVersion(onnx.__version__.split('-')[0]) < StrictVersion("1.5.0"),
                      "NonMaxSuppression op is not supported for onnx < 1.5.0.")
+    @unittest.skipIf(check_bloburl_access(YOLOV3_WEIGHTS_PATH) or check_bloburl_access(YOLOV3_TINY_WEIGHTS_PATH),
+                     "Model blob url can't access")
     def test_yolov3(self):
         img_path = os.path.join(os.path.dirname(__file__), '../data', 'street.jpg')
         yolo3_yolo3_dir = os.path.join(os.path.dirname(__file__), '../../../keras-yolo3/yolo3')