// Copyright 2007, 2008 The Apache Software Foundation
//
// 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 org.apache.tapestry5.ioc.internal.services;
import org.apache.tapestry5.ioc.internal.util.CollectionFactory;
import org.apache.tapestry5.ioc.internal.util.InternalUtils;
import org.apache.tapestry5.ioc.services.ClassNameLocator;
import org.apache.tapestry5.ioc.services.ClasspathURLConverter;
import org.testng.Assert;
import org.testng.annotations.Test;
import java.util.Collection;
import java.util.Set;
/**
* Tricky to test, since the code is literally hunting around inside its own brain. There's a lot of room for unintended
* consequences here.
*/
public class ClassNameLocatorImplTest extends Assert
{
private final ClasspathURLConverter converter = new ClasspathURLConverterImpl();
/**
* Use various packages in javax.inject to test this, as those don't change unexpectedly(-ish) and we know they are in
* a JAR on the classpath.
*/
@Test
public void classes_in_jar_file()
{
ClassNameLocator locator = new ClassNameLocatorImpl(converter);
Collection<String> names = locator
.locateClassNames("javax.inject");
// Assert a couple of the matched names
assertInList(
names,
"javax.inject", "Inject", "Named", "Singleton");
}
@Test
public void classes_in_subpackage_in_jar_file()
{
ClassNameLocator locator = new ClassNameLocatorImpl(converter);
Collection<String> names = locator.locateClassNames("org.slf4j");
assertInList(
names,
"org.slf4j",
"spi.MDCAdapter");
}
/**
* This time, we use a selection of classes from tapestry-ioc, since those will never be packaged inside a JAR at
* this time.
*/
@Test
public void classes_in_local_folders()
{
ClassNameLocator locator = new ClassNameLocatorImpl(converter);
Collection<String> names = locator
.locateClassNames("org.apache.tapestry5.ioc.services");
assertInList(names, "org.apache.tapestry5.ioc.services", "SymbolSource", "TapestryIOCModule");
assertNotInList(names, "org.apache.tapestry5.ioc.services", "TapestryIOCModule$1");
}
@Test
public void classes_in_subpackages_in_local_folders()
{
ClassNameLocator locator = new ClassNameLocatorImpl(converter);
Collection<String> names = locator.locateClassNames("org.apache.tapestry5");
assertInList(
names,
"org.apache.tapestry5",
"ioc.Orderable",
"ioc.services.ChainBuilder");
assertNotInList(names, "org.apache.tapestry5.ioc", "services.TapestryIOCModule$1");
}
void assertInList(Collection<String> names, String packageName, String... classNames)
{
Set<String> classNameSet = CollectionFactory.newSet(names);
for (String className : classNames)
{
String fullName = packageName + "." + className;
if (classNameSet.contains(fullName))
continue;
String message = String.format("%s not found in %s.", fullName, InternalUtils
.joinSorted(names));
throw new AssertionError(message);
}
}
void assertNotInList(Collection<String> names, String packageName, String... classNames)
{
Set<String> classNameSet = CollectionFactory.newSet(names);
for (String className : classNames)
{
String fullName = packageName + "." + className;
if (!classNameSet.contains(fullName))
continue;
String message = String.format("%s found in %s.", fullName, InternalUtils
.joinSorted(names));
throw new AssertionError(message);
}
}
}