From a3ec5fe650e08aca7effc7e1c589ff7dcef79afe Mon Sep 17 00:00:00 2001
From: Kienan Stewart <kstewart@efficios.com>
Date: Fri, 31 Jan 2025 10:55:16 -0500
Subject: [PATCH] tests: Exit serial test runner gracefully when no tests are
 specified
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This avoids the test failing when invoking make with `TESTS=xxx` to
limit which tests are run.

Change-Id: I89c7096a64acc68114d4ca2d0042a219c57ad23a
Signed-off-by: Kienan Stewart <kstewart@efficios.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---
 tests/regression/tests.serial | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tests/regression/tests.serial b/tests/regression/tests.serial
index a99352fe1..c936309f6 100755
--- a/tests/regression/tests.serial
+++ b/tests/regression/tests.serial
@@ -191,5 +191,11 @@ if __name__ == "__main__":
 
     logging.info("Serial tests received %d tests", len(tests))
     logging.debug("Serial tests: {}".format(tests))
+
+    if len(tests) == 0:
+        tap = lttngtest.TapGenerator(1)
+        tap.skip("No tests specified by the environment")
+        sys.exit(0)
+
     if not run_tests(tests):
         sys.exit(1)
-- 
2.39.5