MDBF-772: Test all past MariaDB version that they install

Test with all current MariaDB versions that commit
can be installed over them and it works after that

master-libvirt/master.cfg

@@ -14,6 +14,8 @@ import docker
 import os
 import sys
 
+from constants import *
+
 sys.setrecursionlimit(10000)
 
 sys.path.insert(0, "/srv/buildbot/master")
@@ -212,6 +214,7 @@ def getDebInstallStep():
                 "systemdCapability",
                 "test_mode",
                 "test_type",
+                "prev_major_version",
                 "version_name",
             ]
         ),
@@ -228,6 +231,21 @@ def getMajorVersionStep():
         ),
     )
 
+def getDebUpgradeVersionSteps(f_deb_upgrade_steps):
+    current_major_version = util.Interpolate(f"%(prop:major_version)s")
+    rtn_steps = util.BuildFactory()
+    for cur_branch in branches_main:
+        if current_major_version == cur_branch:
+           break
+
+        f_deb_upgrade_steps.addStep(
+            steps.SetProperty(
+                property="prev_major_version",
+                value=cur_branch
+            )
+        )
+
+        f_deb_upgrade_steps.addStep(getDebUpgradeStep())
 
 # FACTORY
 
@@ -243,6 +261,9 @@ f_deb_upgrade.addStep(getMajorVersionStep())
 f_deb_upgrade.addStep(getScript("deb-upgrade.sh"))
 f_deb_upgrade.addStep(getDebUpgradeStep())
 
+## f_deb_upgrade_from_version
+getDebUpgradeVersionSteps(f_deb_upgrade)
+
 ## f_rpm_install
 f_rpm_install = util.BuildFactory()
 f_rpm_install.addStep(getScript("rpm-install.sh"))

scripts/deb-upgrade.sh

@@ -15,7 +15,13 @@ set -e
 manual_run_switch "$1"
 
 upgrade_type_mode
-upgrade_test_type "$test_type"
+
+# If there is available previous major version
+# then expect that it will be used as base of
+# installation
+if [ -z "${prev_major_version}" ]; then
+   upgrade_test_type "$test_type"
+fi
 
 bb_print_env