Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/6178#discussion_r196681937
--- Diff:
flink-runtime/src/test/java/org/apache/flink/runtime/rest/FileUploadHandlerTest.java
---
@@ -0,0 +1,471 @@
+/*
+ * 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.apache.flink.runtime.rest;
+
+import org.apache.flink.api.common.time.Time;
+import org.apache.flink.api.java.tuple.Tuple2;
+import org.apache.flink.configuration.ConfigConstants;
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.configuration.RestOptions;
+import org.apache.flink.configuration.WebOptions;
+import org.apache.flink.runtime.rest.handler.AbstractRestHandler;
+import org.apache.flink.runtime.rest.handler.FileUploads;
+import org.apache.flink.runtime.rest.handler.HandlerRequest;
+import org.apache.flink.runtime.rest.handler.RestHandlerException;
+import org.apache.flink.runtime.rest.handler.RestHandlerSpecification;
+import org.apache.flink.runtime.rest.messages.EmptyMessageParameters;
+import org.apache.flink.runtime.rest.messages.EmptyRequestBody;
+import org.apache.flink.runtime.rest.messages.EmptyResponseBody;
+import org.apache.flink.runtime.rest.messages.MessageHeaders;
+import org.apache.flink.runtime.rest.messages.RequestBody;
+import org.apache.flink.runtime.rest.util.RestMapperUtils;
+import org.apache.flink.runtime.rpc.RpcUtils;
+import org.apache.flink.runtime.webmonitor.RestfulGateway;
+import org.apache.flink.runtime.webmonitor.retriever.GatewayRetriever;
+import org.apache.flink.util.Preconditions;
+
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonCreator;
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.annotation.JsonProperty;
+import
org.apache.flink.shaded.jackson2.com.fasterxml.jackson.databind.ObjectMapper;
+import
org.apache.flink.shaded.netty4.io.netty.channel.ChannelInboundHandler;
+import
org.apache.flink.shaded.netty4.io.netty.handler.codec.http.HttpResponseStatus;
+
+import okhttp3.MediaType;
+import okhttp3.MultipartBody;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.ClassRule;
+import org.junit.Test;
+import org.junit.rules.TemporaryFolder;
+
+import javax.annotation.Nonnull;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.StringWriter;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Random;
+import java.util.concurrent.CompletableFuture;
+
+import static java.util.Objects.requireNonNull;
+import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
+import static org.mockito.Matchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+/**
+ * Tests for the {@link FileUploadHandler}. Ensures that multipart http
messages containing files and/or json are properly
+ * handled.
+ */
+public class FileUploadHandlerTest {
+
+ private static final ObjectMapper OBJECT_MAPPER =
RestMapperUtils.getStrictObjectMapper();
+ private static final Random RANDOM = new Random();
+
+ @ClassRule
+ public static final TemporaryFolder TEMPORARY_FOLDER = new
TemporaryFolder();
+
+ private static RestServerEndpoint serverEndpoint;
+ private static String serverAddress;
+
+ private static MultipartMixedHandler mixedHandler;
+ private static MultipartJsonHandler jsonHandler;
+ private static MultipartFileHandler fileHandler;
+ private static File file1;
+ private static File file2;
+
+ @BeforeClass
+ public static void setup() throws Exception {
+ Configuration config = new Configuration();
+ config.setInteger(RestOptions.PORT, 0);
+ config.setString(RestOptions.ADDRESS, "localhost");
+ config.setString(WebOptions.UPLOAD_DIR,
TEMPORARY_FOLDER.newFolder().getCanonicalPath());
+
+ RestServerEndpointConfiguration serverConfig =
RestServerEndpointConfiguration.fromConfiguration(config);
+
+ final String restAddress = "http://localhost:1234";;
+ RestfulGateway mockRestfulGateway = mock(RestfulGateway.class);
--- End diff --
neat.
---
