[HUDI-698]Add unit test for CleansCommand (#1449)

scripts/run_travis_tests.sh

@@ -17,6 +17,8 @@
 # limitations under the License.
 
 mode=$1
+sparkVersion=2.4.4
+hadoopVersion=2.7
 
 if [ "$mode" = "unit" ];
 then
@@ -24,6 +26,11 @@ then
   mvn test -DskipITs=true -B
 elif [ "$mode" = "integration" ];
 then
+  echo "Downloading Apache Spark-${sparkVersion}-bin-hadoop${hadoopVersion}"
+  wget http://archive.apache.org/dist/spark/spark-${sparkVersion}/spark-${sparkVersion}-bin-hadoop${hadoopVersion}.tgz -O /tmp/spark-${sparkVersion}.tgz
+  tar -xvf /tmp/spark-${sparkVersion}.tgz
+  export SPARK_HOME=$PWD/spark-${sparkVersion}-bin-hadoop${hadoopVersion}
+  mkdir /tmp/spark-events/
   echo "Running Integration Tests"
   mvn verify -DskipUTs=true -B
 else