Add test to avclass_labeler

.gitignore

@@ -1 +1,2 @@
-lib/*.pyc
+*.pyc
+.cache/

tests/test_avclass_labeler.py

@@ -0,0 +1,22 @@
+import pytest
+import subprocess
+import os
+
+
+def call_with_output(array):
+    p = subprocess.Popen(array, stdout=subprocess.PIPE,
+                         stderr=subprocess.PIPE)
+    output, err = p.communicate()
+    return output, err
+
+
+def avclass_labeler_bin():
+    base_path = os.path.dirname(os.path.abspath(__file__))
+    return os.path.join(base_path, '../avclass_labeler.py')
+
+
+def test_avclass_labeler_subprocess():
+    params = ['python', avclass_labeler_bin(), '-lb', 'data/malheurReference_lb.json', '-v', '-fam']
+    output, err = call_with_output(params)
+    err = err.split('\n')
+    assert err[-4].find('[-] Samples: 3131 NoLabels:') != -1, "err=%s" % err