src/test/java/org/apache/sling/engine/impl/helper/SlingServletContextTest.java

/*
 * 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
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package org.apache.sling.engine.impl.helper;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;

import java.util.Dictionary;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.atomic.AtomicReference;

import org.apache.sling.engine.impl.Config;
import org.apache.sling.engine.impl.ProductInfoProvider;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
import org.osgi.framework.BundleContext;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import static org.mockito.ArgumentMatchers.any;

public class SlingServletContextTest {

    @Test
    public void testConfiguredServerInfo() {
        final Config cfg = Mockito.mock(Config.class);
        Mockito.when(cfg.sling_serverinfo()).thenReturn("Apache Sling/1.0");
        final ProductInfoProvider pip = Mockito.mock(ProductInfoProvider.class);
        final BundleContext bundleContext = Mockito.mock(BundleContext.class);
        final SlingServletContext ctx = new SlingServletContext(cfg, bundleContext, pip);
        assertEquals("Apache Sling/1.0", ctx.getServerInfo());
    }

    @Test
    public void testServletContextListener() {
        final Config cfg = Mockito.mock(Config.class);
        final ProductInfoProvider pip = Mockito.mock(ProductInfoProvider.class);
        final BundleContext bundleContext = Mockito.mock(BundleContext.class);
        final CountDownLatch initLatch = new CountDownLatch(2);
        final AtomicReference<Object> registration = new AtomicReference<>();
        Mockito.doAnswer(new Answer<Void>() {
                    public Void answer(InvocationOnMock invocation) {
                        registration.set(invocation.getArguments()[1]);
                        initLatch.countDown();
                        return null;
                    }
                })
                .when(bundleContext)
                .registerService(
                        Mockito.eq(ServletContext.class), any(SlingServletContext.class), any(Dictionary.class));
        final SlingServletContext ctx = new SlingServletContext(cfg, bundleContext, pip);
        final ServletContext source = Mockito.mock(ServletContext.class);
        final ServletContextEvent event = new ServletContextEvent(source);
        ctx.contextInitialized(event);
        assertSame(source, ctx.getServletContext());
        initLatch.countDown();
        try {
            initLatch.await();
        } catch (InterruptedException e) {
            // ignore
        }
        assertSame(ctx, registration.get());
        ctx.contextDestroyed(event);
        assertNull(ctx.getServletContext());
    }
}