add comment for using ST_TO_RUN variable
@@ -209,6 +209,8 @@ fv: $(LOCAL_BUILD_DEP) bin/calicoctl-linux-amd64
# STs
###############################################################################
LOCAL_IP_ENV?=$(shell ip route get 8.8.8.8 | head -1 | awk '{print $$7}')
+# To run a specific test, set ST_TO_RUN to testfile.py:class.method
+# e.g. ST_TO_RUN="tests/st/calicoctl/test_crud.py:TestCalicoctlCommands.test_get_delete_multiple_names"
ST_TO_RUN?=tests/st/calicoctl/
# Can exclude the slower tests with "-a '!slow'"
ST_OPTIONS?=
