Java tutorial
/* * Copyright 2015 VMware, Inc. All Rights Reserved. * * 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 com.vmware.photon.controller.api.client.resource; import com.vmware.photon.controller.api.client.RestClient; import org.apache.http.HttpResponse; import org.apache.http.StatusLine; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.concurrent.FutureCallback; import org.apache.http.entity.ContentType; import org.apache.http.entity.StringEntity; import org.apache.http.impl.nio.client.CloseableHttpAsyncClient; import org.apache.http.protocol.BasicHttpContext; import org.mockito.invocation.InvocationOnMock; import org.mockito.stubbing.Answer; import static org.mockito.Matchers.any; import static org.mockito.Mockito.doAnswer; import static org.mockito.Mockito.mock; import static org.mockito.Mockito.when; import java.io.IOException; import java.util.concurrent.ExecutionException; import java.util.concurrent.Future; import java.util.concurrent.TimeUnit; import java.util.concurrent.TimeoutException; /** * Common setup functions for unit tests. */ public class ApiTestBase { private CloseableHttpAsyncClient asyncHttpClient; private HttpClient httpClient; protected RestClient restClient; public static final int COUNTDOWNLATCH_AWAIT_TIMEOUT = 10; public static final int ARGUMENT_INDEX_TWO = 2; @SuppressWarnings("unchecked") public final void setupMocks(String serializedResponse, int responseCode) throws IOException { this.asyncHttpClient = mock(CloseableHttpAsyncClient.class); this.httpClient = mock(HttpClient.class); doAnswer(new Answer<Object>() { @Override public Object answer(InvocationOnMock invocation) throws Throwable { return null; } }).when(this.asyncHttpClient).close(); this.restClient = new RestClient("http://1.1.1.1", this.asyncHttpClient, this.httpClient); final HttpResponse httpResponse = mock(HttpResponse.class); StatusLine statusLine = mock(StatusLine.class); when(httpResponse.getStatusLine()).thenReturn(statusLine); when(statusLine.getStatusCode()).thenReturn(responseCode); when(httpResponse.getEntity()) .thenReturn(new StringEntity(serializedResponse, ContentType.APPLICATION_JSON)); final Future<HttpResponse> httpResponseFuture = new Future<HttpResponse>() { @Override public boolean cancel(boolean mayInterruptIfRunning) { return false; } @Override public boolean isCancelled() { return false; } @Override public boolean isDone() { return true; } @Override public HttpResponse get() throws InterruptedException, ExecutionException { return httpResponse; } @Override public HttpResponse get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { return httpResponse; } }; when(this.httpClient.execute(any(HttpUriRequest.class))).thenReturn(httpResponse); when(this.asyncHttpClient.execute(any(HttpUriRequest.class), any(BasicHttpContext.class), any(FutureCallback.class))).thenAnswer(new Answer<Object>() { @Override public Object answer(InvocationOnMock invocation) throws Throwable { if (invocation.getArguments()[ARGUMENT_INDEX_TWO] != null) { ((FutureCallback<HttpResponse>) invocation.getArguments()[ARGUMENT_INDEX_TWO]) .completed(httpResponse); } return httpResponseFuture; } }); } @SuppressWarnings("unchecked") public final void setupMocksForPagination(String serializedResponse, String serializedResponseForNextPage, String nextPageLink, int responseCode) throws IOException { this.asyncHttpClient = mock(CloseableHttpAsyncClient.class); this.httpClient = mock(HttpClient.class); doAnswer(new Answer<Object>() { @Override public Object answer(InvocationOnMock invocation) throws Throwable { return null; } }).when(this.asyncHttpClient).close(); this.restClient = new RestClient("http://1.1.1.1", this.asyncHttpClient, this.httpClient); final HttpResponse httpResponse = mock(HttpResponse.class); StatusLine statusLine = mock(StatusLine.class); when(httpResponse.getStatusLine()).thenReturn(statusLine); when(statusLine.getStatusCode()).thenReturn(responseCode); when(httpResponse.getEntity()) .thenReturn(new StringEntity(serializedResponse, ContentType.APPLICATION_JSON)); final HttpResponse httpResponseForNextPage = mock(HttpResponse.class); StatusLine statusLineForNextPage = mock(StatusLine.class); when(httpResponseForNextPage.getStatusLine()).thenReturn(statusLineForNextPage); when(statusLineForNextPage.getStatusCode()).thenReturn(responseCode); when(httpResponseForNextPage.getEntity()) .thenReturn(new StringEntity(serializedResponseForNextPage, ContentType.APPLICATION_JSON)); final Future<HttpResponse> httpResponseFuture = new Future<HttpResponse>() { @Override public boolean cancel(boolean mayInterruptIfRunning) { return false; } @Override public boolean isCancelled() { return false; } @Override public boolean isDone() { return true; } @Override public HttpResponse get() throws InterruptedException, ExecutionException { return httpResponse; } @Override public HttpResponse get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { return httpResponse; } }; final Future<HttpResponse> httpResponseFutureForNextPage = new Future<HttpResponse>() { @Override public boolean cancel(boolean mayInterruptIfRunning) { return false; } @Override public boolean isCancelled() { return false; } @Override public boolean isDone() { return true; } @Override public HttpResponse get() throws InterruptedException, ExecutionException { return httpResponseForNextPage; } @Override public HttpResponse get(long timeout, TimeUnit unit) throws InterruptedException, ExecutionException, TimeoutException { return httpResponseForNextPage; } }; when(this.httpClient.execute(any(HttpUriRequest.class))).thenAnswer(new Answer<HttpResponse>() { @Override public HttpResponse answer(InvocationOnMock invocation) throws Throwable { HttpUriRequest httpUriRequest = (HttpUriRequest) invocation.getArguments()[0]; if (httpUriRequest.getURI().toString().contains(nextPageLink)) { return httpResponseForNextPage; } return httpResponse; } }); when(this.asyncHttpClient.execute(any(HttpUriRequest.class), any(BasicHttpContext.class), any(FutureCallback.class))).thenAnswer(new Answer<Object>() { @Override public Object answer(InvocationOnMock invocation) throws Throwable { HttpUriRequest httpUriRequest = (HttpUriRequest) invocation.getArguments()[0]; if (httpUriRequest.getURI().toString().contains(nextPageLink)) { if (invocation.getArguments()[ARGUMENT_INDEX_TWO] != null) { ((FutureCallback<HttpResponse>) invocation.getArguments()[ARGUMENT_INDEX_TWO]) .completed(httpResponseForNextPage); } return httpResponseFutureForNextPage; } if (invocation.getArguments()[ARGUMENT_INDEX_TWO] != null) { ((FutureCallback<HttpResponse>) invocation.getArguments()[ARGUMENT_INDEX_TWO]) .completed(httpResponse); } return httpResponseFuture; } }); } @SuppressWarnings("unchecked") public final void setupMocksToThrow(final Exception exceptionToThrow) throws IOException { this.asyncHttpClient = mock(CloseableHttpAsyncClient.class); this.httpClient = mock(HttpClient.class); this.restClient = new RestClient("http://1.1.1.1", this.asyncHttpClient, httpClient); doAnswer(new Answer<Object>() { @Override public Object answer(InvocationOnMock invocation) throws Throwable { return null; } }).when(this.asyncHttpClient).close(); // async http request when(this.asyncHttpClient.execute(any(HttpUriRequest.class), any(BasicHttpContext.class), (FutureCallback<HttpResponse>) any())).thenAnswer(new Answer<Object>() { @Override public Object answer(InvocationOnMock invocation) throws Throwable { throw exceptionToThrow; } }); when(this.httpClient.execute(any(HttpUriRequest.class))).thenThrow(exceptionToThrow); } }