ctdb-tests: Add "ctdb reloadnodes" unit tests

A basic test and some for cross-node consistency checking.

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

4 files changed, 120 insertions, 3 deletions

diff --git a/ctdb/tests/tool/scripts/local.sh b/ctdb/tests/tool/scripts/local.sh
index a6df54b1b05..6cdf4c5089f 100644
--- a/ctdb/tests/tool/scripts/local.sh
+++ b/ctdb/tests/tool/scripts/local.sh
@@ -44,13 +44,26 @@ setup_natgw ()
 
 setup_nodes ()
 {
-    debug "Setting up CTDB_NODES"
+    _pnn="$1"
+
+    _v="CTDB_NODES${_pnn:+_}${_pnn}"
+    debug "Setting up ${_v}"
 
     # These will accumulate, 1 per test... but will be cleaned up at
     # the end.
-    export CTDB_NODES=$(mktemp --tmpdir="$TEST_VAR_DIR")
+    eval export "${_v}"=$(mktemp --tmpdir="$TEST_VAR_DIR")
+
+    eval _f="\${${_v}}"
+    cat >"$_f"
 
-    cat >"$CTDB_NODES"
+    # You can't be too careful about what might be in the
+    # environment...  so clean up when setting the default variable.
+    if [ -z "$_pnn" ] ; then
+	_n=$(wc -l "$CTDB_NODES" | awk '{ print $1 }')
+	for _i in $(seq 0 $_n) ; do
+	    eval unset "CTDB_NODES_${_i}"
+	done
+    fi
 }
 
 simple_test ()
diff --git a/ctdb/tests/tool/stubby.reloadnodes.001.sh b/ctdb/tests/tool/stubby.reloadnodes.001.sh
new file mode 100755
index 00000000000..7f54de7c22c
--- /dev/null
+++ b/ctdb/tests/tool/stubby.reloadnodes.001.sh
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+. "${TEST_SCRIPTS_DIR}/unit.sh"
+
+define_test "3 nodes, no change"
+
+setup_nodes <<EOF
+192.168.20.41
+192.168.20.42
+192.168.20.43
+EOF
+
+ok <<EOF
+Reloading nodes file on node 1
+ctdb_ctrl_reload_nodes_file: node 1
+Reloading nodes file on node 2
+ctdb_ctrl_reload_nodes_file: node 2
+Reloading nodes file on node 0
+ctdb_ctrl_reload_nodes_file: node 0
+EOF
+
+simple_test <<EOF
+NODEMAP
+0       192.168.20.41   0x0     CURRENT RECMASTER
+1       192.168.20.42   0x0
+2       192.168.20.43   0x0
+
+VNNMAP
+654321
+0
+1
+2
+EOF
diff --git a/ctdb/tests/tool/stubby.reloadnodes.002.sh b/ctdb/tests/tool/stubby.reloadnodes.002.sh
new file mode 100755
index 00000000000..61b14381f26
--- /dev/null
+++ b/ctdb/tests/tool/stubby.reloadnodes.002.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+
+. "${TEST_SCRIPTS_DIR}/unit.sh"
+
+define_test "3 nodes, no change, inconsistent file on 1"
+
+setup_nodes <<EOF
+192.168.20.41
+192.168.20.42
+192.168.20.43
+EOF
+
+setup_nodes 1 <<EOF
+192.168.20.41
+#192.168.20.42
+192.168.20.43
+EOF
+
+required_result 255 <<EOF
+ERROR: Node file on node 1 differs from current node (0)
+EOF
+
+simple_test <<EOF
+NODEMAP
+0       192.168.20.41   0x0     CURRENT RECMASTER
+1       192.168.20.42   0x0
+2       192.168.20.43   0x0
+
+VNNMAP
+654321
+0
+1
+2
+EOF
diff --git a/ctdb/tests/tool/stubby.reloadnodes.003.sh b/ctdb/tests/tool/stubby.reloadnodes.003.sh
new file mode 100755
index 00000000000..e5e02984fa2
--- /dev/null
+++ b/ctdb/tests/tool/stubby.reloadnodes.003.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+. "${TEST_SCRIPTS_DIR}/unit.sh"
+
+define_test "3 nodes, missing file on 1"
+
+setup_nodes <<EOF
+192.168.20.41
+192.168.20.42
+192.168.20.43
+EOF
+
+setup_nodes 1 <<EOF
+192.168.20.41
+#192.168.20.42
+192.168.20.43
+EOF
+
+rm "$CTDB_NODES_1"
+
+required_result 255 <<EOF
+Failed to read nodes file "${CTDB_NODES_1}"
+ERROR: Failed to get nodes file from node 1
+EOF
+
+simple_test <<EOF
+NODEMAP
+0       192.168.20.41   0x0     CURRENT RECMASTER
+1       192.168.20.42   0x0
+2       192.168.20.43   0x0
+
+VNNMAP
+654321
+0
+1
+2
+EOF