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 * 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.sysml.test.integration.functions.misc;

import org.junit.Assert;
import org.junit.Test;
import org.apache.sysml.hops.OptimizerUtils;
import org.apache.sysml.runtime.matrix.data.MatrixValue.CellIndex;
import org.apache.sysml.test.integration.AutomatedTestBase;
import org.apache.sysml.test.integration.TestConfiguration;
import org.apache.sysml.test.utils.TestUtils;
import org.apache.sysml.utils.Statistics;

public class RewriteFoldRCBindTest extends AutomatedTestBase 
{
	private static final String TEST_NAME1 = "RewriteFoldCBind";
	private static final String TEST_NAME2 = "RewriteFoldRBind";
	
	private static final String TEST_DIR = "functions/misc/";
	private static final String TEST_CLASS_DIR = TEST_DIR + RewriteFoldRCBindTest.class.getSimpleName() + "/";
	
	private static final int rows = 1932;
	private static final int cols = 14;
	
	@Override
	public void setUp() {
		TestUtils.clearAssertionInformation();
		addTestConfiguration( TEST_NAME1, new TestConfiguration(TEST_CLASS_DIR, TEST_NAME1, new String[] { "R" }) );
		addTestConfiguration( TEST_NAME2, new TestConfiguration(TEST_CLASS_DIR, TEST_NAME2, new String[] { "R" }) );
	}

	@Test
	public void testRewriteFoldCBindNoRewrite() {
		testRewriteFoldRCBind( TEST_NAME1, false );
	}
	
	@Test
	public void testRewriteFoldCBindRewrite() {
		testRewriteFoldRCBind( TEST_NAME1, true );
	}
	
	@Test
	public void testRewriteFoldRBindNoRewrite() {
		testRewriteFoldRCBind( TEST_NAME2, false );
	}
	
	@Test
	public void testRewriteFoldRBindRewrite() {
		testRewriteFoldRCBind( TEST_NAME2, true );
	}

	private void testRewriteFoldRCBind( String testname, boolean rewrites )
	{	
		boolean oldFlag = OptimizerUtils.ALLOW_ALGEBRAIC_SIMPLIFICATION;
		
		try {
			TestConfiguration config = getTestConfiguration(testname);
			loadTestConfiguration(config);
			
			String HOME = SCRIPT_DIR + TEST_DIR;
			fullDMLScriptName = HOME + testname + ".dml";
			programArgs = new String[]{ "-stats", "-args", String.valueOf(rows), 
					String.valueOf(cols), output("R") };
			OptimizerUtils.ALLOW_ALGEBRAIC_SIMPLIFICATION = rewrites;

			//run performance tests
			runTest(true, false, null, -1); 
			
			//compare matrices 
			Double ret = readDMLMatrixFromHDFS("R").get(new CellIndex(1,1));
			Assert.assertEquals("Wrong result", new Double(5*rows*cols), ret);
			
			//check for applied rewrites
			if( rewrites ) {
				Assert.assertTrue(!heavyHittersContainsString("append")
					&& Statistics.getCPHeavyHitterCount("cbind") <= 1
					&& Statistics.getCPHeavyHitterCount("rbind") <= 1);
			}
		}
		finally {
			OptimizerUtils.ALLOW_ALGEBRAIC_SIMPLIFICATION = oldFlag;
		}
	}
}

@@ -939,27 +939,175 @@
 sml.
-hops.OptimizerUtils
+api.DMLScript;%0Aimport org.apache.sysml.api.DMLScript.RUNTIME_PLATFORM;%0Aimport org.apache.sysml.hops.OptimizerUtils;%0Aimport org.apache.sysml.lops.LopProperties.ExecType
 ;%0Aim
@@ -2210,24 +2210,37 @@
 NAME1, false
+, ExecType.CP
  );%0A%09%7D%0A%09%0A%09@T
@@ -2325,24 +2325,37 @@
 _NAME1, true
+, ExecType.CP
  );%0A%09%7D%0A%09%0A%09@T
@@ -2447,16 +2447,29 @@
 2, false
+, ExecType.CP
  );%0A%09%7D%0A%09
@@ -2562,16 +2562,29 @@
 E2, true
+, ExecType.CP
  );%0A%09%7D%0A%0A
@@ -2657,13 +2657,472 @@
 ites
- )%0A%09%7B
+, ExecType et )%0A%09%7B%0A%09%09RUNTIME_PLATFORM platformOld = rtplatform;%0A%09%09switch( et )%7B%0A%09%09%09case MR: rtplatform = RUNTIME_PLATFORM.HADOOP; break;%0A%09%09%09case SPARK: rtplatform = RUNTIME_PLATFORM.SPARK; break;%0A%09%09%09default: rtplatform = RUNTIME_PLATFORM.HYBRID_SPARK; break;%0A%09%09%7D%0A%09%09%0A%09%09boolean sparkConfigOld = DMLScript.USE_LOCAL_SPARK_CONFIG;%0A%09%09if( rtplatform == RUNTIME_PLATFORM.SPARK %7C%7C rtplatform == RUNTIME_PLATFORM.HYBRID_SPARK )%0A%09%09%09DMLScript.USE_LOCAL_SPARK_CONFIG = true;%0A%09
 %09%0A%09%09
@@ -4100,16 +4100,99 @@
 ldFlag;%0A
+%09%09%09DMLScript.USE_LOCAL_SPARK_CONFIG = sparkConfigOld;%0A%09%09%09rtplatform = platformOld;%0A
 %09%09%7D%0A%09%7D%0A%7D

Fix cbind/rbind folding test (exec type)