test: add 138-syncloop test

diff --git a/test/simulation/138-syncloop b/test/simulation/138-syncloop
new file mode 100755 (executable)
index 0000000..8edeec6
--- /dev/null
+++ b/test/simulation/138-syncloop
@@ -0,0 +1,34 @@
+#!/bin/bash
+
+. ./test.common
+
+test_start "loop prevention"
+
+mkdir tmp/logdir1 tmp/logdir2
+
+server_conf="
+server 192.168.123.1
+server 192.168.123.2
+logdir tmp/logdir1
+log measurements"
+client_server_conf="
+server 192.168.123.1
+server 192.168.123.2
+logdir tmp/logdir2
+log measurements
+allow"
+
+run_test || test_fail
+check_chronyd_exit || test_fail
+check_source_selection || test_fail
+check_sync || test_fail
+
+check_file_messages "20.*123\.1.* 111 111 1110" 30 200 logdir1/measurements.log || test_fail
+check_file_messages "20.*123\.2.* 111 111 1110" 30 200 logdir1/measurements.log || test_fail
+check_file_messages "20.*123\...* 111 111 1111" 0 0 logdir1/measurements.log || test_fail
+check_file_messages "20.*123\.1.* 111 111 1111" 30 200 logdir2/measurements.log || test_fail
+check_file_messages "20.*123\.1.* 111 111 1110" 0 0 logdir2/measurements.log || test_fail
+check_file_messages "20.*123\.2.* 111 111 1110" 30 200 logdir2/measurements.log || test_fail
+check_file_messages "20.*123\.2.* 111 111 1111" 0 0 logdir1/measurements.log || test_fail
+
+test_pass