ctdb-tests: Add a test for version consistency checking

Signed-off-by: Martin Schwenke <martin@meltin.net>
Reviewed-by: Amitay Isaacs <amitay@samba.org>

diff --git a/ctdb/tests/simple/91_version_check.sh b/ctdb/tests/simple/91_version_check.sh
new file mode 100755 (executable)
index 0000000..5329b49
--- /dev/null
+++ b/ctdb/tests/simple/91_version_check.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+
+test_info()
+{
+    cat <<EOF
+Check that the CTDB version consistency checking operates correctly.
+EOF
+}
+
+. "${TEST_SCRIPTS_DIR}/integration.bash"
+
+set -e
+
+if [ -z "$TEST_LOCAL_DAEMONS" ] ; then
+       echo "SKIPPING this test - only runs against local daemons"
+       exit 0
+fi
+
+ctdb_test_init
+
+cluster_is_healthy
+
+select_test_node_and_ips
+
+try_command_on_node -v "$test_node" ctdb version
+version="$out"
+
+major="${version%%.*}"
+rest="${version#*.}"
+minor="${rest%%.*}"
+
+echo "Node ${test_node} has version ${major}.${minor}"
+
+# Unchanged version - this should work
+export CTDB_TEST_SAMBA_VERSION=$(( (major << 16) | minor ))
+printf '\nRestarting node %d with CTDB_TEST_SAMBA_VERSION=0x%08x\n' \
+       "$test_node" \
+       "$CTDB_TEST_SAMBA_VERSION"
+restart_ctdb_1 "$test_node"
+wait_until_ready
+echo "GOOD: ctdbd restarted successfully on node ${test_node}"
+
+d="$CTDB_SCRIPTS_HELPER_BINDIR"
+try_command_on_node "$test_node" "${d}/ctdb-path" "pidfile" "ctdbd"
+pidfile="$out"
+
+# Changed major version - this should fail
+export CTDB_TEST_SAMBA_VERSION=$(( ((major + 1) << 16) | minor ))
+printf '\nRestarting node %d with CTDB_TEST_SAMBA_VERSION=0x%08x\n' \
+       "$test_node" \
+       "$CTDB_TEST_SAMBA_VERSION"
+restart_ctdb_1 "$test_node"
+echo "Will use PID file ${pidfile} to check for ctdbd exit"
+wait_until 30 ! test -f "$pidfile"
+echo "GOOD: ctdbd exited early on node ${test_node}"
+
+# Changed minor version - this should fail
+export CTDB_TEST_SAMBA_VERSION=$(( (major << 16) | (minor + 1) ))
+printf '\nRestarting node %d with CTDB_TEST_SAMBA_VERSION=0x%08x\n' \
+       "$test_node" \
+       "$CTDB_TEST_SAMBA_VERSION"
+start_ctdb_1 "$test_node"
+echo "Will use PID file ${pidfile} to check for ctdbd exit"
+wait_until 30 ! test -f "$pidfile"
+echo "GOOD: ctdbd exited early on node ${test_node}"