Revision: 1046
http://stripes.svn.sourceforge.net/stripes/?rev=1046&view=rev
Author: bengunter
Date: 2009-02-25 18:50:46 +0000 (Wed, 25 Feb 2009)
Log Message:
-----------
STS-614: Unit tests for DefaultObjectFactory
Added Paths:
-----------
trunk/tests/src/net/sourceforge/stripes/controller/ObjectFactoryTests.java
Added:
trunk/tests/src/net/sourceforge/stripes/controller/ObjectFactoryTests.java
===================================================================
--- trunk/tests/src/net/sourceforge/stripes/controller/ObjectFactoryTests.java
(rev 0)
+++ trunk/tests/src/net/sourceforge/stripes/controller/ObjectFactoryTests.java
2009-02-25 18:50:46 UTC (rev 1046)
@@ -0,0 +1,166 @@
+/* Copyright 2009 Ben Gunter
+ *
+ * Licensed 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 net.sourceforge.stripes.controller;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Map;
+import java.util.Queue;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.SortedSet;
+
+import net.sourceforge.stripes.StripesTestFixture;
+import net.sourceforge.stripes.controller.ObjectFactory.ConstructorWrapper;
+import net.sourceforge.stripes.exception.StripesRuntimeException;
+import net.sourceforge.stripes.util.Log;
+
+import org.testng.Assert;
+import org.testng.annotations.Test;
+
+/**
+ * Unit tests for {...@link ObjectFactory} and {...@link DefaultObjectFactory}.
+ *
+ * @author Ben Gunter
+ */
+public class ObjectFactoryTests extends StripesTestFixture {
+ public static final class Adder {
+ private int a;
+ private int b;
+
+ public Adder(int a, int b) {
+ this.a = a;
+ this.b = b;
+ }
+
+ public int sum() {
+ return a + b;
+ }
+ }
+
+ private static final Log log = Log.getInstance(ObjectFactoryTests.class);
+
+ public static void main(String[] args) {
+ ObjectFactoryTests tests = new ObjectFactoryTests();
+ tests.postProcess();
+ }
+
+ public void instantiateClasses(ObjectFactory factory, Class<?>... classes)
{
+ for (Class<?> clazz : classes) {
+ log.debug("Instantiating ", clazz);
+ Object o = factory.newInstance(clazz);
+ Assert.assertNotNull(o);
+ Assert.assertSame(clazz, o.getClass());
+ }
+ }
+
+ public void instantiateInterfaces(ObjectFactory factory, Class<?>...
classes) {
+ for (Class<?> clazz : classes) {
+ log.debug("Instantiating ", clazz);
+ Object o = factory.newInstance(clazz);
+ Assert.assertNotNull(o);
+ Assert.assertTrue(clazz.isAssignableFrom(o.getClass()));
+ }
+ }
+
+ /** Test basic instantiation of classes. */
+ @Test(groups = "fast")
+ public void basic() {
+ ObjectFactory factory =
super.getDefaultConfiguration().getObjectFactory();
+ instantiateClasses(factory, Object.class, String.class,
Exception.class,
+ StringBuilder.class);
+ }
+
+ /** Test instantiation of interfaces. */
+ @Test(groups = "fast")
+ public void interfaces() {
+ ObjectFactory factory = getDefaultConfiguration().getObjectFactory();
+ instantiateInterfaces(factory, Collection.class, List.class,
Set.class, SortedSet.class,
+ Queue.class, Map.class, SortedMap.class);
+ }
+
+ /** Test instantiation via constructor. */
+ @Test(groups = "fast")
+ public void constructor() {
+ log.info("Instantiating ", Adder.class, " via constructor call");
+ ConstructorWrapper<Adder> constructor =
getDefaultConfiguration().getObjectFactory()
+ .constructor(Adder.class, Integer.TYPE, Integer.TYPE);
+
+ int a = 37, b = 91;
+ Adder adder = constructor.newInstance(a, b);
+ Assert.assertNotNull(adder);
+ Assert.assertSame(Adder.class, adder.getClass());
+ Assert.assertEquals(a + b, adder.sum());
+ }
+
+ /** Attempt to instantiate an interface that does not have a known
implementing class. */
+ @Test(groups = "fast", expectedExceptions = InstantiationException.class)
+ public void missingInterfaceImpl() throws Throwable {
+ try {
+ log.debug("Attempting to instantiate ", Runnable.class, "
expecting failure");
+
getDefaultConfiguration().getObjectFactory().newInstance(Runnable.class);
+ }
+ catch (StripesRuntimeException e) {
+ throw e.getCause();
+ }
+ }
+
+ /** Attempt to instantiate a class that does not have a no-arg
constructor. */
+ @Test(groups = "fast", expectedExceptions = InstantiationException.class)
+ public void missingNoArgsConstructor() throws Throwable {
+ try {
+ log.debug("Attempting to instantiate ", Adder.class, " expecting
failure");
+
getDefaultConfiguration().getObjectFactory().newInstance(Adder.class);
+ }
+ catch (StripesRuntimeException e) {
+ throw e.getCause();
+ }
+ }
+
+ /** Alter an instance via {...@link
DefaultObjectFactory#postProcess(Object)}. */
+ @Test(groups = "fast")
+ public void postProcess() {
+ final String prefix = "Stripey!";
+ DefaultObjectFactory factory = new DefaultObjectFactory() {
+ @SuppressWarnings("unchecked")
+ @Override
+ protected <T> T postProcess(T object) {
+ if (object instanceof String)
+ object = (T) (prefix + object);
+
+ return object;
+ }
+ };
+
+ final String expect = "TEST";
+ String string;
+
+ log.debug("Testing post-process skips StringBuilder");
+ string = factory.constructor(StringBuilder.class,
String.class).newInstance(expect)
+ .toString();
+ log.debug("Got " + string);
+ Assert.assertEquals(expect, string);
+
+ log.debug("Testing post-process via no-arg constructor");
+ string = factory.newInstance(String.class);
+ log.debug("Got " + string);
+ Assert.assertEquals(prefix, string);
+
+ log.debug("Testing post-process via constructor with args");
+ string = factory.constructor(String.class,
String.class).newInstance(expect);
+ log.debug("Got " + string);
+ Assert.assertEquals(prefix + expect, string);
+ }
+}
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