make test: support out-of-tree plugins

usage:

env EXTERN_PLUGINS=/path/to/plugins make test

Change-Id: I8eece726dfafeff1cffd921c1e18cd3eb7eb64ed
Signed-off-by: Klement Sekera <ksekera@cisco.com>

2 files changed, 14 insertions, 2 deletions

diff --git a/test/Makefile b/test/Makefile
index c65eaae6bfe..6647d67b20b 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -92,6 +92,8 @@ shell: verify-python-path $(PAPI_INSTALL_DONE)
 		echo VPP_TEST_BIN=$(VPP_TEST_BIN);\
 		echo VPP_TEST_PLUGIN_PATH=$(VPP_TEST_PLUGIN_PATH);\
 		echo VPP_TEST_INSTALL_PATH=$(VPP_TEST_INSTALL_PATH);\
+		echo EXTERN_TESTS=$(EXTERN_TESTS);\
+		echo EXTERN_PLUGINS=$(EXTERN_PLUGINS);\
 		echo LD_LIBRARY_PATH=$(LD_LIBRARY_PATH);\
 		echo '***';\
 		exec </dev/tty" | bash -i
@@ -182,6 +184,8 @@ help:
 	@echo " COREDUMP_SIZE=<size> - pass <size> as unix { coredump-size <size> } argument to vpp"
 	@echo "                        e.g. COREDUMP_SIZE=4g"
 	@echo "                             COREDUMP_SIZE=unlimited"
+	@echo " EXTERN_TESTS=<path>  - path to out-of-tree test_<name>.py files containing test cases"
+	@echo " EXTERN_PLUGINS=<path>- path to out-of-tree plugins to be loaded by vpp under test"
 	@echo ""
 	@echo "Creating test documentation"
 	@echo " test-doc            - generate documentation for test framework"
diff --git a/test/framework.py b/test/framework.py
index d7a0026412b..fe6a8a531f4 100644
--- a/test/framework.py
+++ b/test/framework.py
@@ -146,6 +146,14 @@ class VppTestCase(unittest.TestCase):
         cls.set_debug_flags(d)
         cls.vpp_bin = os.getenv('VPP_TEST_BIN', "vpp")
         cls.plugin_path = os.getenv('VPP_TEST_PLUGIN_PATH')
+        cls.extern_plugin_path = os.getenv('EXTERN_PLUGINS')
+        plugin_path = None
+        if cls.plugin_path is not None:
+            if cls.extern_plugin_path is not None:
+                plugin_path = "%s:%s" % (
+                    cls.plugin_path, cls.extern_plugin_path)
+        elif cls.extern_plugin_path is not None:
+            plugin_path = cls.extern_plugin_path
         debug_cli = ""
         if cls.step or cls.debug_gdb or cls.debug_gdbserver:
             debug_cli = "cli-listen localhost:5002"
@@ -164,8 +172,8 @@ class VppTestCase(unittest.TestCase):
                            "api-segment", "{", "prefix", cls.shm_prefix, "}",
                            "plugins", "{", "plugin", "dpdk_plugin.so", "{",
                            "disable", "}", "}"]
-        if cls.plugin_path is not None:
-            cls.vpp_cmdline.extend(["plugin_path", cls.plugin_path])
+        if plugin_path is not None:
+            cls.vpp_cmdline.extend(["plugin_path", plugin_path])
         cls.logger.info("vpp_cmdline: %s" % cls.vpp_cmdline)
 
     @classmethod