First test structure

tests/utils.py

@@ -0,0 +1,23 @@
+import os
+
+def get_artifact(fname):
+    """
+    Return the artifact path in the artifact folder
+    """
+    DATA_FOLDER = os.path.join(os.path.dirname(__file__), "artifacts")
+    fpath = os.path.join(DATA_FOLDER, fname)
+    if os.path.isfile(fpath):
+        return fpath
+    return
+
+def get_artifact_folder():
+    return os.path.join(os.path.dirname(__file__), "artifacts")
+
+def init_setup():
+    """
+    init data to have a clean state before testing
+    """
+    try:
+        del os.environ['MVT_STIX2']
+    except KeyError:
+        pass