3 files changed, 39 insertions, 1 deletions
diff --git a/tests/test_client.py b/tests/test_client.py
index 60ad310c..f14aac23 100644
--- a/tests/test_client.py
+++ b/tests/test_client.py
@@ -421,7 +421,10 @@ class SSHClientTest(ClientTest):
 
         # force a collection to see whether the SSHClient object is deallocated
         # 2 GCs are needed on PyPy, time is needed for Python 3
-        time.sleep(0.3)
+        # TODO: this still fails randomly under CircleCI under Python 3.7, 3.8
+        # at the very least. bumped sleep 0.3->1.0s but the underlying
+        # functionality should get reevaluated once we drop Python 2.
+        time.sleep(1)
         gc.collect()
         gc.collect()
 
diff --git a/tests/test_gssapi.py b/tests/test_gssapi.py
index 308caa93..acdc7c82 100644
--- a/tests/test_gssapi.py
+++ b/tests/test_gssapi.py
@@ -26,6 +26,13 @@ import socket
 
 from .util import needs_gssapi, KerberosTestCase, update_env
 
+#
+# NOTE: KerberosTestCase skips all tests if it was unable to import k5test
+# third-party library. That's the primary trigger for whether this module
+# effectively gets run or not. See tests/util.py for other triggers (a set of
+# env vars a human might have defined).
+#
+
 
 @needs_gssapi
 class GSSAPITest(KerberosTestCase):
diff --git a/tests/test_sftp.py b/tests/test_sftp.py
index e4e18e5a..a98a46c6 100644
--- a/tests/test_sftp.py
+++ b/tests/test_sftp.py
@@ -554,6 +554,34 @@ class TestSFTP(object):
         os.unlink(localname)
         sftp.unlink(sftp.FOLDER + "/bunny.txt")
 
+    def test_get_without_prefetch(self, sftp):
+        """
+        Create a 4MB file. Verify that pull works without prefetching
+        using a lager file.
+        """
+
+        sftp_filename = sftp.FOLDER + "/dummy_file"
+        num_chars = 1024 * 1024 * 4
+
+        fd, localname = mkstemp()
+        os.close(fd)
+
+        with open(localname, "wb") as f:
+            f.write(b"0" * num_chars)
+
+        sftp.put(localname, sftp_filename)
+
+        os.unlink(localname)
+        fd, localname = mkstemp()
+        os.close(fd)
+
+        sftp.get(sftp_filename, localname, prefetch=False)
+
+        assert os.stat(localname).st_size == num_chars
+
+        os.unlink(localname)
+        sftp.unlink(sftp_filename)
+
     def test_check(self, sftp):
         """
         verify that file.check() works against our own server.