o Decoupled test from user environment

git-svn-id: https://svn.apache.org/repos/asf/maven/core-integration-testing/trunk@724924 13f79535-47bb-0310-9956-ffa450edef68

its/core-it-suite/src/test/java/org/apache/maven/it/MavenITmng3843PomInheritanceTest.java

@@ -57,6 +57,8 @@ public class MavenITmng3843PomInheritanceTest
         verifier.deleteDirectory( "test-2/child-1/target" );
         verifier.deleteDirectory( "test-2/child-2/target" );
         verifier.deleteDirectory( "test-3/sub-parent/child-a/target" );
+        verifier.getSystemProperties().setProperty( "org.apache.maven.user-settings",
+            new File( testDir, "settings.xml" ).getAbsolutePath() );
         verifier.executeGoal( "validate" );
         verifier.verifyErrorFreeLog();
         verifier.resetStreams();

its/core-it-suite/src/test/resources/mng-3843/settings.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+  http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<settings>
+  <!-- empty to emulate a vanilla environment -->
+</settings>