PYTHON-1436 - Test against Atlas with TLSv1.0 disabled

Author: behackett

.evergreen/config.yml

@@ -435,7 +435,7 @@ functions:
         working_dir: "src"
         script: |
           # DO NOT ECHO WITH XTRACE (which PREPARE_SHELL does)
-          PYTHON_BINARY=${PYTHON_BINARY} ATLAS_REPL='${atlas_repl}' ATLAS_SHRD='${atlas_shrd}' ATLAS_FREE='${atlas_free}' sh ${PROJECT_DIRECTORY}/.evergreen/run-atlas-tests.sh
+          PYTHON_BINARY=${PYTHON_BINARY} ATLAS_REPL='${atlas_repl}' ATLAS_SHRD='${atlas_shrd}' ATLAS_FREE='${atlas_free}' ATLAS_TLSP='${atlas_tls11plus}' sh ${PROJECT_DIRECTORY}/.evergreen/run-atlas-tests.sh
 
   "cleanup":
     - command: shell.exec

test/atlas/test_connection.py

@@ -33,6 +33,7 @@
 _REPL = os.environ.get("ATLAS_REPL")
 _SHRD = os.environ.get("ATLAS_SHRD")
 _FREE = os.environ.get("ATLAS_FREE")
+_TLSP = os.environ.get("ATLAS_TLSP")
 
 
 def _connect(uri):
@@ -62,6 +63,9 @@ def test_free_tier(self):
             raise unittest.SkipTest("Free tier requires SNI support.")
         _connect(_FREE)
 
+    def test_tls_11_plus(self):
+        _connect(_TLSP)
+
 
 if __name__ == '__main__':
     unittest.main()