test that calling the disconnect() method causes HTTP sessions to close

This is similar to the test we are doing in the case of the "with"
statement, but we're making sure that calling .disconnect() directly
causes the same effect.

Author: lelutin

tests/test_connect.py

@@ -3,10 +3,14 @@
 import pypuppetdb
 
 
-def test_connect_api():
+@mock.patch('pypuppetdb.api.requests.Session.close')
+def test_connect_api(session_close):
     puppetdb = pypuppetdb.connect()
     assert puppetdb.version == 'v4'
 
+    puppetdb.disconnect()
+    assert session_close.called
+
 
 @mock.patch('pypuppetdb.api.requests.Session.close')
 def test_connect_with_statement(session_close):