testing/test_runner: Support interactive test debugging

Add support for entering interactive test debugging when DEBUG_TESTENV=1 is set in the environment. This will execute $SHELL inside the namespace that is setup for the test run, after setting up the test interfaces, making it easy to manually run tests in the same environment to debug things. Signed-off-by: Toke Høiland-Jørgensen <[email protected]>
xdp-project · Aug 5, 2024 · 60e8f11 · 60e8f11
1 parent 451bfbf
commit 60e8f11
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/lib/testing/test_runner.sh b/lib/testing/test_runner.sh
@@ -453,7 +453,7 @@ usage()
 
 if [ "$EUID" -ne "0" ]; then
     if command -v sudo >/dev/null 2>&1; then
-        exec sudo env V=${VERBOSE_TESTS} "$0" "$@"
+        exec sudo env V=${VERBOSE_TESTS} DEBUG_TESTENV=${DEBUG_TESTENV:-0} "$0" "$@"
     else
         die "Tests should be run as root"
     fi
@@ -480,4 +480,10 @@ TOOL_TESTS_DIR="$(dirname "$TEST_DEFINITIONS")"
 shift
 trap teardown EXIT
 setup
+
+if [ "${DEBUG_TESTENV:-0}" -eq "1" ] && [ -n "$SHELL" ]; then
+    echo "Entering interactive testenv debug - Ctrl-D to exit and resume test execution"
+    $SHELL
+fi
+
 run_tests "$@"