Add test cases for one character lambda parameters and for loop variables

pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/codestyle/xml/FormalParameterNamingConventions.xml

@@ -47,6 +47,32 @@
             ]]></code>
     </test-code>
 
+    <test-code>
+        <description>One character lambda Parameters should be allowed by default</description>
+        <expected-problems>0</expected-problems>
+        <code><![CDATA[
+            import java.util.function.Consumer;
+
+
+            public class Bar {
+
+                public void foo() {
+                    Consumer<String> i = (s) -> {
+
+                    };
+
+                    Consumer<String> k = (String s) -> {
+
+                    };
+
+                    Consumer<String> l = (final String s) -> {
+
+                    };
+                }
+            }
+        ]]></code>
+    </test-code>
+
     <test-code>
         <description>Test method param pattern</description>
         <rule-property name="methodParameterPattern">[A-Z]+</rule-property>

pmd-java/src/test/resources/net/sourceforge/pmd/lang/java/rule/codestyle/xml/LocalVariableNamingConventions.xml

@@ -118,5 +118,19 @@
             ]]></code>
     </test-code>
 
+    <test-code>
+        <description>One character for loop variables should be ok by default</description>
+        <expected-problems>0</expected-problems>
+        <code><![CDATA[
+        public class LocalVarNamingConvention {
+            public void bar() {
+                for (int i = 0; i < 10; i++) { }
+
+                List<String> data = Arrays.asList("a", "b");
+                for (String s : data) { }
+            }
+        }
+        ]]></code>
+    </test-code>
 
 </test-data>