Merge branch 'wip-dogfood-test' into pmd/5.4.x

pmd-core/src/main/resources/rulesets/internal/dogfood.xml

@@ -47,7 +47,6 @@
 		<exclude name="AtLeastOneConstructor"/>
 		<exclude name="CallSuperInConstructor"/>
 		<exclude name="DefaultPackage"/>
-		<exclude name="BooleanInversion"/>
 		<exclude name="DataflowAnomalyAnalysis"/>
 		<exclude name="AvoidFinalLocalVariable"/>
 		<exclude name="DataflowAnomalyAnalysis"/>

pmd-java/src/test/java/net/sourceforge/pmd/RuleSetFactoryTest.java

@@ -3,6 +3,7 @@
  */
 package net.sourceforge.pmd;
 
+import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 
 import org.junit.Test;
@@ -29,4 +30,17 @@ public class RuleSetFactoryTest extends AbstractRuleSetFactoryTest {
         Rule rule = ruleset.getRuleByName("UselessParentheses");
         assertNull(rule);
     }
+
+    /**
+     * Makes sure that the internal dogfood.xml ruleset is valid and doesn't reference any
+     * unknown rules.
+     * @throws RuleSetNotFoundException if dogfood couldn't be found at all
+     */
+    @Test
+    public void testDogfoodRuleset() throws RuleSetNotFoundException {
+        RuleSetReferenceId ref = RuleSetReferenceId.parse("rulesets/internal/dogfood.xml").get(0);
+        RuleSetFactory ruleSetFactory = new RuleSetFactory();
+        RuleSet ruleset = ruleSetFactory.createRuleSet(ref);
+        assertNotNull(ruleset);
+    }
 }