tests: multiple apidir locations

To support testing of external plugins, add support to the test framework and PAPI
for specifying a list of locations to look for api.json files.

Type: improvement
Signed-off-by: Ole Troan <ot@cisco.com>
Change-Id: I128a306e3c091dc8ef994801b1470b82d2f4595d
Signed-off-by: Ole Troan <ot@cisco.com>

test/config.py

@@ -301,6 +301,14 @@ parser.add_argument(
     help="directory containing external plugins",
 )
 
+parser.add_argument(
+    "--extern-apidir",
+    action="append",
+    type=directory,
+    default=[],
+    help="directory to look for API JSON files",
+)
+
 parser.add_argument(
     "--coredump-size",
     action="store",