add testcase test_shellcmd_module_import

Author: peeweep

ipyparallel/tests/test_shellcmd.py

@@ -128,6 +128,12 @@
 ]
 
 
+def test_shellcmd_module_import():
+    import ipyparallel.shellcmd
+
+    assert callable(ipyparallel.shellcmd.main)
+
+
 @pytest.fixture
 def shellcmd_test_cmd():
     """returns a command that runs for 5 seconds"""