1 files changed, 93 insertions, 0 deletions
diff --git a/sdo-java/branches/sdo-1.1-incubating/sdo-api/src/test/java/commonj/sdo/impl/HelperProviderTestCase.java b/sdo-java/branches/sdo-1.1-incubating/sdo-api/src/test/java/commonj/sdo/impl/HelperProviderTestCase.java
new file mode 100644
index 0000000000..a434f6f989
--- /dev/null
+++ b/sdo-java/branches/sdo-1.1-incubating/sdo-api/src/test/java/commonj/sdo/impl/HelperProviderTestCase.java
@@ -0,0 +1,93 @@
+/**
+ *
+ *  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 commonj.sdo.impl;
+
+import java.net.URL;
+import java.net.URLClassLoader;
+
+import junit.framework.TestCase;
+import test.DefaultHelperProvider;
+import test.TCCL1HelperProvider;
+
+/**
+ * @version $Revision$ $Date$
+ */
+public class HelperProviderTestCase extends TestCase {
+    private URL classes;
+    private URL testClasses;
+    private URL def;
+    private URL tccl1;
+
+    public void testInstanceIsNullWithNoImplementation() throws Exception {
+        assertNull(HelperProvider.INSTANCE);
+    }
+
+    public void testDefaultInstance() throws Exception {
+        ClassLoader cl = new URLClassLoader(new URL[]{classes, def, testClasses}, null);
+        Class providerClass = cl.loadClass(HelperProvider.class.getName());
+        Class implClass = cl.loadClass(DefaultHelperProvider.class.getName());
+        Object instance = providerClass.getField("INSTANCE").get(null);
+        assertNotNull(instance);
+        assertEquals(implClass, instance.getClass());
+    }
+
+    public void testLocateFromClassLoader() throws Exception {
+        ClassLoader cl = new URLClassLoader(new URL[]{classes, tccl1, testClasses}, null);
+        Class providerClass = cl.loadClass(HelperProvider.class.getName());
+        Object provider = providerClass.getMethod("getInstance", new Class[] {ClassLoader.class})
+            .invoke(null, new Object[] {cl});
+        assertNotNull(provider);
+        assertEquals(TCCL1HelperProvider.class.getName(), provider.getClass().getName());
+    }
+
+    public void testThreadContextInstance() throws Exception {
+        ClassLoader cl = new URLClassLoader(new URL[]{classes, tccl1, testClasses}, null);
+        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+        try {
+            Thread.currentThread().setContextClassLoader(cl);
+            Class providerClass = cl.loadClass(HelperProvider.class.getName());
+            Object provider = providerClass.getMethod("getInstance", new Class[0]).invoke(null, new Object[0]);
+            assertNotNull(provider);
+            assertEquals(TCCL1HelperProvider.class.getName(), provider.getClass().getName());
+        } finally {
+            Thread.currentThread().setContextClassLoader(tccl);
+        }
+
+    }
+
+    public void testSystemProperty() {
+        System.setProperty("commonj.sdo.impl.HelperProvider", "test.TCCL1HelperProvider");
+        try {
+            HelperProvider provider = HelperProvider.getInstance();
+            assertNotNull(provider);
+            assertEquals(TCCL1HelperProvider.class, provider.getClass());
+        } finally {
+            System.getProperties().remove("commonj.sdo.impl.HelperProvider");
+        }
+    }
+
+    protected void setUp() throws Exception {
+        super.setUp();
+        classes = new URL(HelperProvider.class.getResource("HelperProvider.class"), "../../..");
+        testClasses = new URL(HelperProviderTestCase.class.getResource("HelperProviderTestCase.class"), "../../..");
+        tccl1 = new URL(testClasses, "tccl1/");
+        def = new URL(testClasses, "default/");
+    }
+}