Introduce the NFT_TEST_EXCLUDES environment variable to allow excluding
one or more specific test cases.
This is useful for some releases where certain tests are not yet supported.
allowing them to be skipped directly in the test script
without modifying the run-test.sh itself.

Signed-off-by: Yi Chen <yiche@redhat.com>
---
 tests/shell/run-tests.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/shell/run-tests.sh b/tests/shell/run-tests.sh
index 46f523b9..6273c9a2 100755
--- a/tests/shell/run-tests.sh
+++ b/tests/shell/run-tests.sh
@@ -255,6 +255,7 @@ usage() {
 	echo "                 Supported <FEATURE>s are: ${_HAVE_OPTS[@]}."
 	echo " NFT_TEST_SKIP_<OPTION>=*|y: if set, certain tests are skipped."
 	echo "                 Supported <OPTION>s are: ${_SKIP_OPTS[@]}."
+	echo " NFT_TEST_EXCLUDES=\"TEST1 TEST2 ...\": Specify tests to be excluded from running"
 }
 
 NFT_TEST_BASEDIR="$(dirname "$0")"
@@ -455,6 +456,11 @@ done
 
 NFT_TEST_SHUFFLE_TESTS="$(bool_y "$NFT_TEST_SHUFFLE_TESTS")"
 
+if [ -n "$NFT_TEST_EXCLUDES" ]; then
+	TESTS=( $(printf '%s\n' "${TESTS[@]}" |
+            grep -vE "$(printf '%s|' $NFT_TEST_EXCLUDES | sed 's/|$//')") )
+fi
+
 if [ "$DO_LIST_TESTS" = y ] ; then
 	printf '%s\n' "${TESTS[@]}"
 	exit 0
-- 
2.52.0