[1794] Add a lettuce test for updating in-memory after xfr feature

tests/lettuce/configurations/xfrin/inmem_slave.conf

@@ -0,0 +1,34 @@
+{
+    "version": 2,
+    "Logging": {
+        "loggers": [ {
+            "debuglevel": 99,
+            "severity": "DEBUG",
+            "name": "*"
+        } ]
+    },
+    "Auth": {
+        "database_file": "data/inmem-xfrin.sqlite3",
+        "datasources": [ {
+            "type": "memory",
+	    "class": "IN",
+            "zones": [ {
+                "origin": "example.org",
+                "file": "data/inmem-xfrin.sqlite3",
+                "filetype": "sqlite3"
+            } ]
+        } ],
+        "listen_on": [ {
+            "port": 47806,
+            "address": "127.0.0.1"
+        } ]
+    },
+    "Boss": {
+        "components": {
+            "b10-auth": { "kind": "needed", "special": "auth" },
+            "b10-xfrin": { "address": "Xfrin", "kind": "dispensable" },
+            "b10-zonemgr": { "address": "Zonemgr", "kind": "dispensable" },
+            "b10-cmdctl": { "special": "cmdctl", "kind": "needed" }
+        }
+    }
+}

tests/lettuce/data/inmem-xfrin

@@ -0,0 +1,7 @@
+example.org.	3600	IN	SOA	ns1.example.org. admin.example.org. 1234 3600 1800 2419200 7200
+example.org.	3600	IN	NS	ns1.example.org.
+example.org.	3600	IN	NS	ns2.example.org.
+example.org.	3600	IN	MX	10 mail.example.org.
+www.example.org.	3600	IN	A	192.0.2.63
+ns1.example.org.	3600	IN	A	192.0.2.3
+ns2.example.org.	3600	IN	A	192.0.2.4

tests/lettuce/features/inmemory_over_sqlite3.feature

@@ -3,10 +3,41 @@ Feature: In-memory zone using SQLite3 backend
     data source that uses the SQLite3 data source as the backend, and tests
     scenarios that update the zone via incoming zone transfers.
 
-    Scenario: Load and response
+    Scenario: 1. Load and response
         Given I have bind10 running with configuration inmemory_over_sqlite3/secondary.conf
         And wait for bind10 stderr message BIND10_STARTED_CC
         And wait for bind10 stderr message CMDCTL_STARTED
         And wait for bind10 stderr message AUTH_SERVER_STARTED
         A query for www.example.org should have rcode NOERROR
         The SOA serial for example.org should be 1234
+
+    Scenario: 2. In-memory datasource backed by sqlite3
+        Given I have bind10 running with configuration xfrin/retransfer_master.conf with cmdctl port 47804 as master
+        And wait for master stderr message BIND10_STARTED_CC
+        And wait for master stderr message CMDCTL_STARTED
+        And wait for master stderr message AUTH_SERVER_STARTED
+        And wait for master stderr message XFROUT_STARTED
+        And wait for master stderr message ZONEMGR_STARTED
+
+        And I have bind10 running with configuration xfrin/inmem_slave.conf
+        And wait for bind10 stderr message BIND10_STARTED_CC
+        And wait for bind10 stderr message CMDCTL_STARTED
+        And wait for bind10 stderr message AUTH_SERVER_STARTED
+        And wait for bind10 stderr message XFRIN_STARTED
+        And wait for bind10 stderr message ZONEMGR_STARTED
+
+        A query for www.example.org should have rcode NOERROR
+        """
+        www.example.org.        3600    IN      A       192.0.2.63
+        """
+        A query for mail.example.org should have rcode NXDOMAIN
+        When I send bind10 the command Xfrin retransfer example.org IN 127.0.0.1 47807
+        Then wait for new bind10 stderr message XFRIN_TRANSFER_SUCCESS not XFRIN_XFR_PROCESS_FAILURE
+	Then wait for new bind10 stderr message AUTH_LOAD_ZONE
+
+        A query for www.example.org should have rcode NOERROR
+        The answer section of the last query response should be
+        """
+        www.example.org.        3600    IN      A       192.0.2.1
+        """
+        A query for mail.example.org should have rcode NOERROR

tests/lettuce/features/terrain/terrain.py

@@ -52,7 +52,9 @@ copylist = [
     ["configurations/resolver/resolver_basic.config.orig",
      "configurations/resolver/resolver_basic.config"],
     ["configurations/multi_instance/multi_auth.config.orig",
-     "configurations/multi_instance/multi_auth.config"]
+     "configurations/multi_instance/multi_auth.config"],
+    ["data/inmem-xfrin.sqlite3.orig",
+     "data/inmem-xfrin.sqlite3"]
 ]
 
 # This is a list of files that, if present, will be removed before a scenario