From 42850ebc0237d2f87444b8a7f6b7087138567ad5 Mon Sep 17 00:00:00 2001
From: Gabriel Mougard <gabriel.mougard@canonical.com>
Date: Fri, 24 May 2024 10:12:44 +0200
Subject: [PATCH] tests: Add an interactive MicroCloud test with IPv6 disabled
 and IPv4 disabled

Signed-off-by: Gabriel Mougard <gabriel.mougard@canonical.com>
---
 test/suites/basic.sh | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/test/suites/basic.sh b/test/suites/basic.sh
index 155af598e..e2c136642 100644
--- a/test/suites/basic.sh
+++ b/test/suites/basic.sh
@@ -41,6 +41,44 @@ test_interactive() {
     validate_system_lxd "${m}" 3 disk1
   done
 
+  # Reset the systems with just LXD and no IPv6 support.
+  reset_systems 3 3 1
+
+  for m in micro01 micro02 micro03 ; do
+    lxc exec "${m}" -- echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
+    lxc exec "${m}" -- snap disable microceph || true
+    lxc exec "${m}" -- snap disable microovn || true
+    lxc exec "${m}" -- snap restart microcloud
+  done
+
+  echo "Creating a MicroCloud with ZFS storage and no IPv6 support"
+  microcloud_interactive | lxc exec micro01 -- sh -c "microcloud init > out"
+
+  lxc exec micro01 -- tail -1 out | grep "MicroCloud is ready" -q
+  for m in micro01 micro02 micro03 ; do
+    validate_system_lxd "${m}" 3 disk1
+  done
+
+  # Reset the systems with just LXD and no IPv4 support.
+  gw_net_addr=$(lxc network get lxdbr0 ipv4.address)
+  lxc network set lxdbr0 ipv4.address none
+  reset_systems 3 3 1
+
+  for m in micro01 micro02 micro03 ; do
+    lxc exec "${m}" -- snap disable microceph || true
+    lxc exec "${m}" -- snap disable microovn || true
+    lxc exec "${m}" -- snap restart microcloud
+  done
+
+  echo "Creating a MicroCloud with ZFS storage and no IPv4 support"
+  ! microcloud_interactive | lxc exec micro01 -- sh -c "microcloud init 2> out" || false
+
+  # Ensure we exited with the right error message.
+  lxc exec micro01 -- tail -1 err | grep "Error: Could not determine Fan overlay subnet: No default gateway for IPv4" -q
+
+  # Set the IPv4 address back to the original value.
+  lxc network set lxdbr0 ipv4.address "${gw_net_addr}"
+
   # Reset the systems and install microceph.
   reset_systems 3 3 1