Add test for turning off version vector feature

tests/CMakeLists.txt

@@ -276,6 +276,9 @@ if(WITH_PYTHON)
   add_fdb_test(
     TEST_FILES restarting/from_7.1.0/ConfigureStorageMigrationTestRestart-1.toml
                restarting/from_7.1.0/ConfigureStorageMigrationTestRestart-2.toml)
+  add_fdb_test(
+    TEST_FILES restarting/from_7.1.0/VersionVectorDisableRestart-1.toml
+               restarting/from_7.1.0/VersionVectorDisableRestart-2.toml)
 
 
   add_fdb_test(TEST_FILES slow/ApiCorrectness.toml)

tests/restarting/from_7.1.0/VersionVectorDisableRestart-1.toml

@@ -0,0 +1,42 @@
+[[knobs]]
+enable_version_vector = true
+enable_version_vector_tlog_unicast = true
+
+[[test]]
+testTitle='VersionVectorDowngrade'
+clearAfterTest=false
+
+    [[test.workload]]
+    testName='Cycle'
+    transactionsPerSecond=500.0
+    nodeCount=2500
+    testDuration=10.0
+    expectedRate=0
+
+    [[test.workload]]
+    testName='RandomClogging'
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='Rollback'
+    meanDelay=10.0
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='Attrition'
+    machinesToKill=10
+    machinesToLeave=3
+    reboot=true
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='Attrition'
+    machinesToKill=10
+    machinesToLeave=3
+    reboot=true
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='SaveAndKill'
+    restartInfoLocation='simfdb/restartInfo.ini'
+    testDuration=10.0

tests/restarting/from_7.1.0/VersionVectorDisableRestart-2.toml

@@ -0,0 +1,37 @@
+[[knobs]]
+enable_version_vector = false
+enable_version_vector_tlog_unicast = false
+
+[[test]]
+testTitle='VersionVectorDowngrade'
+runSetup=false
+
+    [[test.workload]]
+    testName='Cycle'
+    transactionsPerSecond=2500.0
+    nodeCount=2500
+    testDuration=10.0
+    expectedRate=0
+
+    [[test.workload]]
+    testName='RandomClogging'
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='Rollback'
+    meanDelay=10.0
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='Attrition'
+    machinesToKill=10
+    machinesToLeave=3
+    reboot=true
+    testDuration=10.0
+
+    [[test.workload]]
+    testName='Attrition'
+    machinesToKill=10
+    machinesToLeave=3
+    reboot=true
+    testDuration=10.0