1 files changed, 124 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/tests/junit/org/apache/tools/ant/AntClassLoaderDelegationTest.java b/framework/src/ant/apache-ant-1.9.6/src/tests/junit/org/apache/tools/ant/AntClassLoaderDelegationTest.java
new file mode 100644
index 00000000..ae5ce627
--- /dev/null
+++ b/framework/src/ant/apache-ant-1.9.6/src/tests/junit/org/apache/tools/ant/AntClassLoaderDelegationTest.java
@@ -0,0 +1,124 @@
+/*
+ *  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.
+ *
+ */
+
+package org.apache.tools.ant;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.URL;
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.List;
+import org.apache.tools.ant.types.Path;
+import org.apache.tools.ant.util.FileUtils;
+import org.junit.Before;
+import org.junit.Test;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+/**
+ * Test case for ant class loader
+ *
+ */
+public class AntClassLoaderDelegationTest {
+
+    /** Instance of a utility class to use for file operations. */
+    private static final FileUtils FILE_UTILS = FileUtils.getFileUtils();
+
+    private Project p;
+
+    @Before
+    public void setUp() {
+        p = new Project();
+        p.init();
+    }
+
+    /** Sample resource present in build/testcases/ */
+    private static final String TEST_RESOURCE
+        = "apache/tools/ant/IncludeTest.class";
+
+    @Test
+    public void testFindResources() throws Exception {
+        // This path should contain the class files for these testcases:
+        String buildTestcases = System.getProperty("build.tests");
+        assertNotNull("defined ${build.tests}", buildTestcases);
+        assertTrue("have a dir " + buildTestcases,
+                   new File(buildTestcases).isDirectory());
+        Path path = new Path(p, buildTestcases + "/org");
+        // A special parent loader which is not the system class loader:
+        ClassLoader parent = new ParentLoader();
+        // An AntClassLoader which is supposed to delegate to
+        // the parent and then to the disk path:
+        ClassLoader acl = new AntClassLoader(parent, p, path, true);
+        // The intended result URLs:
+        URL urlFromPath = new URL(
+            FILE_UTILS.toURI(buildTestcases) + "org/" + TEST_RESOURCE);
+        URL urlFromParent = new URL("http://ant.apache.org/" + TEST_RESOURCE);
+        assertEquals("correct resources (regular delegation order)",
+            Arrays.asList(new URL[] {urlFromParent, urlFromPath}),
+            enum2List(acl.getResources(TEST_RESOURCE)));
+        acl = new AntClassLoader(parent, p, path, false);
+        assertEquals("correct resources (reverse delegation order)",
+            Arrays.asList(new URL[] {urlFromPath, urlFromParent}),
+            enum2List(acl.getResources(TEST_RESOURCE)));
+    }
+
+    @Test
+    public void testFindIsolateResources() throws Exception {
+        String buildTestcases = System.getProperty("build.tests");
+        assertNotNull("defined ${build.tests}", buildTestcases);
+        assertTrue("have a dir " + buildTestcases,
+                   new File(buildTestcases).isDirectory());
+        Path path = new Path(p, buildTestcases + "/org");
+        // A special parent loader which is not the system class loader:
+        ClassLoader parent = new ParentLoader();
+
+        URL urlFromPath = new URL(
+            FILE_UTILS.toURI(buildTestcases) + "org/" + TEST_RESOURCE);
+        AntClassLoader acl = new AntClassLoader(parent, p, path, false);
+        acl.setIsolated(true);
+        assertEquals("correct resources (reverse delegation order)",
+            Arrays.asList(new URL[] {urlFromPath}),
+            enum2List(acl.getResources(TEST_RESOURCE)));
+    }
+    
+    private static List enum2List(Enumeration e) {
+        return Collections.list(e);
+    }
+    
+    /** Special loader that just knows how to find TEST_RESOURCE. */
+    private static final class ParentLoader extends ClassLoader {
+        
+        public ParentLoader() {}
+        
+        protected Enumeration findResources(String name) throws IOException {
+            if (name.equals(TEST_RESOURCE)) {
+                return Collections.enumeration(
+                    Collections.singleton(
+                        new URL("http://ant.apache.org/" + name)));
+            } else {
+                return Collections.enumeration(Collections.EMPTY_SET);
+            }
+        }
+        
+    }
+    
+}