Test IPs which used for testing internet connection

platformio/util.py

@@ -575,15 +575,17 @@ def get_api_result(url, params=None, data=None, auth=None, cache_valid=None):
         "Please try later.")
 
 
+PING_INTERNET_IPS = [
+    "159.122.18.156",  # dl.bintray.com
+    "193.222.52.25"  # dl.platformio.org
+]
+
+
 @memoized
 def _internet_on():
-    ips = [
-        "193.222.52.25",  # dl.platformio.org
-        "159.122.18.156"  # dl.bintray.com
-    ]
     timeout = 2
     socket.setdefaulttimeout(timeout)
-    for ip in ips:
+    for ip in PING_INTERNET_IPS:
         try:
             if os.getenv("HTTP_PROXY", os.getenv("HTTPS_PROXY")):
                 requests.get("http://%s" % ip, timeout=timeout)

tests/test_misc.py

@@ -0,0 +1,21 @@
+# Copyright (c) 2014-present PlatformIO <contact@platformio.org>
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import requests
+from platformio import util
+
+
+def test_ping_internet_ips():
+    for ip in util.PING_INTERNET_IPS:
+        requests.get("http://%s" % ip, timeout=2)