Updated tests to improve coverage on common.py module

ignite/contrib/engines/common.py

@@ -223,7 +223,7 @@ def _setup_logging(logger, trainer, optimizers, evaluators, log_every_iters):
 
     if evaluators is not None:
         if not isinstance(evaluators, (Engine, Mapping)):
-            raise TypeError("Argument optimizers should be either a single optimizer or a dictionary or optimizers")
+            raise TypeError("Argument evaluators should be either a single engine or a dictionary or engines")
 
     if log_every_iters is None:
         log_every_iters = 1

ignite/contrib/handlers/polyaxon_logger.py

@@ -251,9 +251,15 @@ class PolyaxonLogger(BaseLogger):
                 param_name='lr'  # optional
             )
 
+    Args:
+        *args: Positional arguments accepted from
+            `Experiment <https://docs.polyaxon.com/references/polyaxon-tracking-api/experiments/>`_.
+        **kwargs: Keyword arguments accepted from
+            `Experiment <https://docs.polyaxon.com/references/polyaxon-tracking-api/experiments/>`_.
+
     """
 
-    def __init__(self):
+    def __init__(self, *args, **kwargs):
         try:
             from polyaxon_client.tracking import Experiment
         except ImportError:
@@ -262,7 +268,7 @@ def __init__(self):
                 "Please install it with command: \n pip install polyaxon-client"
             )
 
-        self.experiment = Experiment()
+        self.experiment = Experiment(*args, **kwargs)
 
     def __getattr__(self, attr):
         def wrapper(*args, **kwargs):

tests/ignite/contrib/conftest.py

@@ -0,0 +1,21 @@
+import pytest
+
+
+@pytest.fixture()
+def visdom_server():
+
+    import os
+    import signal
+    import subprocess
+    import time
+
+    from visdom.server import download_scripts
+
+    download_scripts()
+
+    hostname = "localhost"
+    port = 8098
+    p = subprocess.Popen("visdom --hostname {} -port {}".format(hostname, port), shell=True, preexec_fn=os.setsid)
+    time.sleep(5)
+    yield (hostname, port)
+    os.killpg(os.getpgid(p.pid), signal.SIGTERM)