things you didn't know target could do ;-)

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@818447 13f79535-47bb-0310-9956-ffa450edef68

src/tests/antunit/core/target-test-helper.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0"?>
+<!--
+  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.
+-->
+<project>
+
+  <target name="if-true" if="${ant.refid:true}">
+    <echo>if-true called</echo>
+  </target>
+
+  <target name="unless-true" unless="${ant.refid:true}">
+    <echo>unless-true called</echo>
+  </target>
+
+  <target name="if-false" if="${ant.refid:false}">
+    <echo>if-false called</echo>
+  </target>
+
+  <target name="unless-false" unless="${ant.refid:false}">
+    <echo>unless-false called</echo>
+  </target>
+
+  <target name="all"
+          depends="if-true,unless-true,if-false,unless-false"/>
+
+</project>

src/tests/antunit/core/target-test.xml

@@ -0,0 +1,59 @@
+<?xml version="1.0"?>
+<!--
+  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.
+-->
+<project xmlns:au="antlib:org.apache.ant.antunit" default="antunit">
+
+  <import file="../antunit-base.xml"/>
+
+  <target name="setUp">
+    <mkdir dir="${input}/org/example"/>
+    <mkdir dir="${output}"/>
+    <echo file="${input}/org/example/CreateBoolean.java"><![CDATA[
+package org.example;
+
+import org.apache.tools.ant.ProjectComponent;
+
+public class CreateBoolean extends ProjectComponent {
+    public void execute() {
+        getProject().addReference("true", Boolean.TRUE);
+        getProject().addReference("false", Boolean.FALSE);
+    }
+}]]></echo>
+    <javac srcdir="${input}" destdir="${output}"/>
+    <taskdef name="cb" classname="org.example.CreateBoolean"
+             classpath="${output}"/>
+    <cb/>
+  </target>
+
+  <target name="testReferencesNotSet" depends="setUp">
+    <ant antfile="target-test-helper.xml" target="all"
+         inheritrefs="false"/>
+    <au:assertLogContains text="unless-true called"/>
+    <au:assertLogContains text="unless-false called"/>
+    <au:assertLogDoesntContain text="if-true called"/>
+    <au:assertLogDoesntContain text="if-false called"/>
+  </target>
+
+  <target name="testReferencesSet" depends="setUp">
+    <ant antfile="target-test-helper.xml" target="all"
+         inheritrefs="true"/>
+    <au:assertLogDoesntContain text="unless-true called"/>
+    <au:assertLogContains text="unless-false called"/>
+    <au:assertLogContains text="if-true called"/>
+    <au:assertLogDoesntContain text="if-false called"/>
+  </target>
+</project>