servlet/src/test/java/org/jclouds/chef/servlet/suppliers/ServletContextInfoSupplierTest.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 specific language governing permissions and
 * limitations under the License.
 */
package org.jclouds.chef.servlet.suppliers;

import static org.easymock.EasyMock.expect;
import static org.easymock.classextension.EasyMock.createMock;
import static org.easymock.classextension.EasyMock.replay;
import static org.testng.Assert.assertEquals;

import java.util.Properties;

import javax.servlet.ServletContext;

import org.jclouds.chef.servlet.functions.InitParamsToProperties;
import org.jclouds.json.Json;
import org.jclouds.json.config.GsonModule;
import org.jclouds.ohai.servlet.config.ServletOhaiModule;
import org.jclouds.ohai.servlet.suppliers.ServletContextInfoSupplier;
import org.testng.annotations.Test;

import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.Provides;

/**
 * 
 * @author Adrian Cole
 */

@Test(groups = {"unit"})
public class ServletContextInfoSupplierTest {

	@Test
	public void testApply() {

		final ServletContext servletContext = createMock(ServletContext.class);
		final InitParamsToProperties converter = createMock(InitParamsToProperties.class);
		Properties props = new Properties();
		props.setProperty("foo", "bar");

		expect(servletContext.getContextPath()).andReturn("path");
		expect(servletContext.getServerInfo()).andReturn("serverinfo");
		expect(converter.apply(servletContext)).andReturn(props);

		replay(servletContext);
		replay(converter);

		Injector injector = Guice.createInjector(new GsonModule(),
				new ServletOhaiModule() {
					@SuppressWarnings("unused")
					@Provides
					protected ServletContext provideServletContext() {
						return servletContext;
					}

					@SuppressWarnings("unused")
					@Provides
					protected InitParamsToProperties provideInitParamsToProperties() {
						return converter;
					}
				});

		Json json = injector.getInstance(Json.class);
		ServletContextInfoSupplier ohai = injector
				.getInstance(ServletContextInfoSupplier.class);
		assertEquals(json.toJson(ohai.get()),
				"{\"path\":{\"server_info\":\"serverinfo\",\"init_params\":{\"foo\":\"bar\"}}}");

	}

	@Test
	public void testApplyNullPath() {

		final ServletContext servletContext = createMock(ServletContext.class);
		final InitParamsToProperties converter = createMock(InitParamsToProperties.class);
		Properties props = new Properties();
		props.setProperty("foo", "bar");

		expect(servletContext.getContextPath()).andReturn(null);
		expect(servletContext.getServerInfo()).andReturn("serverinfo");
		expect(converter.apply(servletContext)).andReturn(props);

		replay(servletContext);
		replay(converter);

		Injector injector = Guice.createInjector(new GsonModule(),
				new ServletOhaiModule() {
					@SuppressWarnings("unused")
					@Provides
					protected ServletContext provideServletContext() {
						return servletContext;
					}

					@SuppressWarnings("unused")
					@Provides
					protected InitParamsToProperties provideInitParamsToProperties() {
						return converter;
					}
				});

		Json json = injector.getInstance(Json.class);
		ServletContextInfoSupplier ohai = injector
				.getInstance(ServletContextInfoSupplier.class);
		assertEquals(json.toJson(ohai.get()),
				"{\"/\":{\"server_info\":\"serverinfo\",\"init_params\":{\"foo\":\"bar\"}}}");

	}

	@Test
	public void testApplyEmptyPath() {

		final ServletContext servletContext = createMock(ServletContext.class);
		final InitParamsToProperties converter = createMock(InitParamsToProperties.class);
		Properties props = new Properties();
		props.setProperty("foo", "bar");

		expect(servletContext.getContextPath()).andReturn("");
		expect(servletContext.getServerInfo()).andReturn("serverinfo");
		expect(converter.apply(servletContext)).andReturn(props);

		replay(servletContext);
		replay(converter);

		Injector injector = Guice.createInjector(new GsonModule(),
				new ServletOhaiModule() {
					@SuppressWarnings("unused")
					@Provides
					protected ServletContext provideServletContext() {
						return servletContext;
					}

					@SuppressWarnings("unused")
					@Provides
					protected InitParamsToProperties provideInitParamsToProperties() {
						return converter;
					}
				});

		Json json = injector.getInstance(Json.class);
		ServletContextInfoSupplier ohai = injector
				.getInstance(ServletContextInfoSupplier.class);
		assertEquals(json.toJson(ohai.get()),
				"{\"/\":{\"server_info\":\"serverinfo\",\"init_params\":{\"foo\":\"bar\"}}}");

	}
}