SONAR-3248 add unit tests and fix deletion of review comments

sonar-core/src/main/java/org/sonar/core/purge/PurgeDao.java

@@ -168,9 +168,9 @@ public class PurgeDao {
     mapper.deleteResourceGroupRoles(resourceId);
     mapper.deleteResourceUserRoles(resourceId);
     mapper.deleteResourceManualMeasures(resourceId);
-    mapper.deleteResourceReviews(resourceId);
     vendorMapper.deleteResourceReviewComments(resourceId);
     vendorMapper.deleteResourceActionPlansReviews(resourceId);
+    mapper.deleteResourceReviews(resourceId);
     mapper.deleteResourceActionPlans(resourceId);
     mapper.deleteResourceEvents(resourceId);
     mapper.deleteResource(resourceId);

sonar-core/src/main/java/org/sonar/core/purge/package-info.java

@@ -0,0 +1,24 @@
+/*
+ * Sonar, open source software quality management tool.
+ * Copyright (C) 2008-2012 SonarSource
+ * mailto:contact AT sonarsource DOT com
+ *
+ * Sonar is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * Sonar is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with Sonar; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
+ */
+@ParametersAreNonnullByDefault
+package org.sonar.core.purge;
+
+import javax.annotation.ParametersAreNonnullByDefault;
+

sonar-core/src/test/java/org/sonar/core/purge/PurgeDaoTest.java

@@ -168,7 +168,7 @@ public class PurgeDaoTest extends DaoTestCase {
     } finally {
       MyBatis.closeQuietly(session);
     }
-    assertEmptyTables("projects", "snapshots", "events");
+    assertEmptyTables("projects", "snapshots", "events", "reviews", "review_comments");
   }
 
   @Test

sonar-core/src/test/resources/org/sonar/core/purge/PurgeDaoTest/shouldDeleteProject.xml

@@ -29,6 +29,7 @@
           rule_failure_permanent_id="2" resolution="[null]" created_at="[null]" resource_line="200" severity="BLOCKER"
           user_id="300" assignee_id="300" rule_id="500" manual_violation="[true]" manual_severity="[false]" title="[null]"/>
 
+  <review_comments id="1" created_at="[null]" updated_at="[null]" review_id="2" user_id="1223" review_text="abc"/>
 
   <!-- modules -->
   <projects id="2" enabled="[true]" root_id="1"

sonar-core/src/test/resources/org/sonar/core/purge/PurgeDaoTest/shouldDeleteResource.xml

@@ -18,4 +18,10 @@
   <events id="1" name="Version 1.0" resource_id="1" snapshot_id="1" category="VERSION" description="[null]"
           event_date="2008-12-02 13:58:00.00" created_at="[null]"/>
 
+  <reviews id="1" project_id="1" resource_id="1" status="CLOSED"
+           rule_failure_permanent_id="1" resolution="[null]" created_at="[null]" resource_line="200" severity="BLOCKER"
+           user_id="300" assignee_id="300" rule_id="500" manual_violation="[true]" manual_severity="[false]" title="[null]"/>
+
+  <review_comments id="1" created_at="[null]" updated_at="[null]" review_id="1" user_id="1223" review_text="abc"/>
+
 </dataset>