Add test for PLSQL ignore literals

pmd-plsql/src/test/java/net/sourceforge/pmd/lang/plsql/cpd/PLSQLCpdLexerTest.java

@@ -6,8 +6,10 @@ package net.sourceforge.pmd.lang.plsql.cpd;
 
 import org.junit.jupiter.api.Test;
 
+import net.sourceforge.pmd.cpd.CpdLanguageProperties;
 import net.sourceforge.pmd.lang.plsql.PLSQLLanguageModule;
 import net.sourceforge.pmd.lang.test.cpd.CpdTextComparisonTest;
+import net.sourceforge.pmd.lang.test.cpd.LanguagePropertyConfig;
 
 class PLSQLCpdLexerTest extends CpdTextComparisonTest {
 
@@ -29,4 +31,15 @@ class PLSQLCpdLexerTest extends CpdTextComparisonTest {
     void testTabWidth() {
         doTest("tabWidth");
     }
+
+    @Test
+    void anonymizeLiterals() {
+        doTest("sample-plsql", "_ignore-literals", ignoreLiterals());
+    }
+
+    LanguagePropertyConfig ignoreLiterals() {
+        return props -> {
+            props.setProperty(CpdLanguageProperties.CPD_ANONYMIZE_LITERALS, true);
+        };
+    }
 }