yzhliu commented on a change in pull request #11605: Updating MultiTask example 
to use new infer api and adding test for CI
URL: https://github.com/apache/incubator-mxnet/pull/11605#discussion_r201792414
 
 

 ##########
 File path: 
scala-package/examples/src/test/scala/org/apache/mxnetexamples/multitask/MultiTaskTest.scala
 ##########
 @@ -0,0 +1,191 @@
+/*
+ * 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.mxnetexamples.multitask
+
+import org.apache.commons.io.FileUtils
+import org.apache.mxnet.Context
+import org.scalatest.{BeforeAndAfterAll, FunSuite}
+import org.slf4j.LoggerFactory
+import org.apache.mxnet.Symbol
+import org.apache.mxnet.DataIter
+import org.apache.mxnet.DataBatch
+import org.apache.mxnet.NDArray
+import org.apache.mxnet.Shape
+import org.apache.mxnet.EvalMetric
+import org.apache.mxnet.Context
+import org.apache.mxnet.Xavier
+import org.apache.mxnet.optimizer.RMSProp
+
+import java.io.File
+import java.net.URL
+
+import scala.sys.process.Process
+import scala.collection.immutable.ListMap
+import scala.collection.immutable.IndexedSeq
+
+import scala.collection.mutable.{ArrayBuffer, ListBuffer}
+
+
+/**
+  * Integration test for imageClassifier example.
+  * This will run as a part of "make scalatest"
+  */
+class MultiTaskTest extends FunSuite with BeforeAndAfterAll {
+
+  def getListOfFiles(dir: File): List[File] = 
dir.listFiles.filter(_.isFile).toList
+
+  private val logger = LoggerFactory.getLogger(classOf[MultiTaskTest])
+
+  logger.info("Multitask Test...")
+
+  val baseUrl = 
"https://s3.us-east-2.amazonaws.com/mxnet-scala/scala-example-ci";
+  val tempDirPath = System.getProperty("java.io.tmpdir")
+  val modelDirPath = tempDirPath + File.separator + "multitask/"
+  val tmpFile = new File(tempDirPath + "/multitask/mnist.zip")
+  if (!tmpFile.exists()) {
+    FileUtils.copyURLToFile(new URL(baseUrl + "/mnist/mnist.zip"),
+      tmpFile)
+  }
+
+  // TODO: Need to confirm with Windows
+
+
+  Process("unzip " + tempDirPath + "/multitask/mnist.zip -d "
+    + tempDirPath + "/multitask/") !
+
+  val batchSize = 100
+  val numEpoch = 10
+  val ctx = Context.cpu()
 
 Review comment:
   what is auto context?

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