tests: Add tests for timers

Signed-off-by: Christian Franke <chris@opensourcerouting.org>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
diff --git a/tests/libzebra.tests/test-timer-correctness.exp b/tests/libzebra.tests/test-timer-correctness.exp
new file mode 100644
index 0000000..83531c7
--- /dev/null
+++ b/tests/libzebra.tests/test-timer-correctness.exp
@@ -0,0 +1,7 @@
+set timeout 10
+set testprefix "test-timer-correctness"
+set aborted 0
+
+spawn "./test-timer-correctness"
+
+onesimple "" "Expected output and actual output match."