test: install pyopenssl for mtls testing (#110)

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Source-Link: googleapis/synthtool@0780323

Author: yoshi-automation

noxfile.py

@@ -123,6 +123,9 @@ def system(session):
     # Sanity check: Only run tests if the environment variable is set.
     if not os.environ.get("GOOGLE_APPLICATION_CREDENTIALS", ""):
         session.skip("Credentials must be set via environment variable")
+    # Install pyopenssl for mTLS testing.
+    if os.environ.get("GOOGLE_API_USE_CLIENT_CERTIFICATE", "false") == "true":
+        session.install("pyopenssl")
 
     system_test_exists = os.path.exists(system_test_path)
     system_test_folder_exists = os.path.exists(system_test_folder_path)

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/python-bigquery-datatransfer.git",
-        "sha": "794df75c6f92a84e518375ef994e056dae1d9dd9"
+        "sha": "3c0cb6c1cb602c325d8d0befdb739c16a9bf23e0"
       }
     },
     {
@@ -19,14 +19,14 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "d17674372e27fb8f23013935e794aa37502071aa"
+        "sha": "0780323da96d5a53925fe0547757181fe76e8f1e"
       }
     },
     {
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "d17674372e27fb8f23013935e794aa37502071aa"
+        "sha": "0780323da96d5a53925fe0547757181fe76e8f1e"
       }
     }
   ],