1 files changed, 38 insertions, 0 deletions
diff --git a/tests/data_plane/vpp_lite_topo/scripts/vat/mapping_exists.py b/tests/data_plane/vpp_lite_topo/scripts/vat/mapping_exists.py
new file mode 100755
index 0000000..2015b4a
--- /dev/null
+++ b/tests/data_plane/vpp_lite_topo/scripts/vat/mapping_exists.py
@@ -0,0 +1,38 @@
+# Script for checking whether a mapping exists in the vpp's map-cache
+#
+# Params:
+#   vat_exec - VAT executable
+#   vpp_prefix - shared vpp memory prefix
+#   mapping - mapping to verify
+
+import sys
+import subprocess
+import json
+
+def has_mapping(json, mapping):
+  if len (json) == 0:
+    return False
+
+  for obj in json:
+    if obj['eid'] == mapping:
+      return True;
+
+  return False
+
+def verify_mapping(vat_exec, prefix, mapping, vat_path):
+  vat_file = vat_path + '/' + 'dump_remote_mappings.tpl'
+  out = subprocess.Popen([vat_exec, "chroot", "prefix", prefix, "json", "script",
+      "in", vat_file], stdout=subprocess.PIPE).communicate()[0]
+
+  o = json.loads(out)
+  return has_mapping(o, mapping)
+
+if __name__ == "__main__":
+  if len(sys.argv) < 4:
+    raise Exception('expecteds 4 parameters: VAT executable, shared prefix '
+        + ' name, mapping expected, path to vat templates!')
+
+  if verify_mapping(sys.argv[1], sys.argv[2], sys.argv[3], sys.argv[4]):
+    sys.exit(0)
+  else:
+    sys.exit(1)