sohami commented on a change in pull request #1344: DRILL-6461: Added basic data correctness tests for hash agg, and improved operator unit testing framework. URL: https://github.com/apache/drill/pull/1344#discussion_r211049297
########## File path: exec/java-exec/src/test/java/org/apache/drill/test/OperatorTestBuilder.java ########## @@ -0,0 +1,300 @@ +/* + * 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.drill.test; + +import com.google.common.base.Preconditions; +import org.apache.commons.lang3.mutable.MutableInt; +import org.apache.drill.exec.physical.base.AbstractBase; +import org.apache.drill.exec.physical.base.PhysicalOperator; +import org.apache.drill.exec.physical.impl.BatchCreator; +import org.apache.drill.exec.physical.impl.MockRecordBatch; +import org.apache.drill.exec.physical.impl.svremover.Copier; +import org.apache.drill.exec.physical.impl.svremover.GenericCopier; +import org.apache.drill.exec.record.CloseableRecordBatch; +import org.apache.drill.exec.record.RecordBatch; +import org.apache.drill.exec.record.RecordBatchSizer; +import org.apache.drill.exec.record.VectorContainer; +import org.apache.drill.exec.vector.FixedWidthVector; +import org.apache.drill.exec.vector.ValueVector; +import org.apache.drill.exec.vector.VariableWidthVector; +import org.apache.drill.test.rowSet.DirectRowSet; +import org.apache.drill.test.rowSet.IndirectRowSet; +import org.apache.drill.test.rowSet.RowSet; +import org.apache.drill.test.rowSet.RowSetComparison; +import org.junit.Assert; + +import java.util.ArrayList; +import java.util.List; +import java.util.Optional; +import java.util.stream.Collectors; + +public class OperatorTestBuilder { + + private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(OperatorTestBuilder.class); + + private final List<RowSet> expectedResults = new ArrayList<>(); + private final List<MockRecordBatch> upstreamBatches = new ArrayList<>(); + private PhysicalOpUnitTestBase physicalOpUnitTestBase; + + private PhysicalOperator physicalOperator; + private long initReservation = AbstractBase.INIT_ALLOCATION; + private long maxAllocation = AbstractBase.MAX_ALLOCATION; + private Optional<Integer> expectedNumBatchesOpt = Optional.empty(); + private Optional<Integer> expectedTotalRowsOpt = Optional.empty(); + private boolean combineOutputBatches; + + public OperatorTestBuilder(PhysicalOpUnitTestBase physicalOpUnitTestBase) { + this.physicalOpUnitTestBase = physicalOpUnitTestBase; + } + + @SuppressWarnings({"unchecked", "resource"}) + public void go() throws Exception { + final List<RowSet> actualResults = new ArrayList<>(); + CloseableRecordBatch testOperator = null; + + try { + validate(); + int expectedNumBatches = expectedNumBatchesOpt.orElse(expectedResults.size()); + physicalOpUnitTestBase.mockOpContext(physicalOperator, initReservation, maxAllocation); + + final BatchCreator<PhysicalOperator> opCreator = (BatchCreator<PhysicalOperator>) physicalOpUnitTestBase.opCreatorReg.getOperatorCreator(physicalOperator.getClass()); + testOperator = opCreator.getBatch(physicalOpUnitTestBase.fragContext, physicalOperator, (List)upstreamBatches); + + batchIterator: for (int batchIndex = 0;; batchIndex++) { + final RecordBatch.IterOutcome outcome = testOperator.next(); + + switch (outcome) { + case NONE: + if (!combineOutputBatches) { + Assert.assertEquals(expectedNumBatches, batchIndex); + } + // We are done iterating over batches. Now we need to compare them. + break batchIterator; + case OK_NEW_SCHEMA: + boolean skip = true; + + try { + skip = testOperator.getContainer().getRecordCount() == 0; + } catch (IllegalStateException e) { + // We should skip this batch in this case. It means no data was included with the okay schema + } finally { + if (skip) { + batchIndex--; + break; + } + } + case OK: + if (!combineOutputBatches && batchIndex >= expectedNumBatches) { + testOperator.getContainer().clear(); + Assert.fail("More batches received than expected."); + } else { + final boolean hasSelectionVector = testOperator.getSchema().getSelectionVectorMode().hasSelectionVector; + final VectorContainer container = testOperator.getContainer(); + + if (hasSelectionVector) { + actualResults.add(IndirectRowSet.fromSv2(testOperator.getContainer(), testOperator.getSelectionVector2())); + } else { + actualResults.add(DirectRowSet.fromContainer(container)); + } + break; + } + default: + throw new UnsupportedOperationException("Can't handle this yet"); + } + } + + int actualTotalRows = actualResults.stream() + .map(rowSet -> rowSet.rowCount()) + .reduce((Integer countA, Integer countB) -> countA + countB) + .orElse(0); + + if (expectedResults.isEmpty()) { + Assert.assertEquals((int) expectedTotalRowsOpt.orElse(0), actualTotalRows); + // We are done, we don't have any expected result to compare + return; + } + + if (combineOutputBatches) { + final RowSet expectedBatch = expectedResults.get(0); + final RowSet actualBatch = DirectRowSet.fromSchema( + physicalOpUnitTestBase.operatorFixture.allocator, expectedBatch.schema()); + final VectorContainer actualBatchContainer = actualBatch.container(); + actualBatchContainer.setRecordCount(0); + + final int numColumns = expectedBatch.schema().size(); + List<MutableInt> totalBytesPerColumn = new ArrayList<>(); + + for (int columnIndex = 0; columnIndex < numColumns; columnIndex++) { + totalBytesPerColumn.add(new MutableInt()); + } + + // Get column sizes for each result batch + + final List<List<RecordBatchSizer.ColumnSize>> columnSizesPerBatch = actualResults.stream().map(rowSet -> { + switch (rowSet.indirectionType()) { + case NONE: + return new RecordBatchSizer(rowSet.container()).columnsList(); + case TWO_BYTE: + return new RecordBatchSizer(rowSet.container(), ((RowSet.SingleRowSet) rowSet).getSv2()).columnsList(); + default: + throw new UnsupportedOperationException(); + } + }).collect(Collectors.toList()); + + // Get total bytes per column + + for (List<RecordBatchSizer.ColumnSize> columnSizes: columnSizesPerBatch) { + for (int columnIndex = 0; columnIndex < numColumns; columnIndex++) { + final MutableInt totalBytes = totalBytesPerColumn.get(columnIndex); + final RecordBatchSizer.ColumnSize columnSize = columnSizes.get(columnIndex); + totalBytes.add(columnSize.getTotalDataSize()); + } + } + + for (int columnIndex = 0; columnIndex < numColumns; columnIndex++) { + final ValueVector valueVector = actualBatchContainer + .getValueVector(columnIndex) + .getValueVector(); + + if (valueVector instanceof FixedWidthVector) { + ((FixedWidthVector) valueVector).allocateNew(actualTotalRows); + } else if (valueVector instanceof VariableWidthVector) { + final MutableInt totalBytes = totalBytesPerColumn.get(columnIndex); + ((VariableWidthVector) valueVector).allocateNew(totalBytes.getValue(), actualTotalRows); + } else { + throw new UnsupportedOperationException(); + } + } + + try { + int currentIndex = 0; + + for (RowSet actualRowSet: actualResults) { + final Copier copier; + final VectorContainer rowSetContainer = actualRowSet.container(); + rowSetContainer.setRecordCount(actualRowSet.rowCount()); + + switch (actualRowSet.indirectionType()) { + case NONE: Review comment: But you are adding corresponding RowSet inside actualResults [here](https://github.com/apache/drill/pull/1344/files/332b5f34d43f8f546824619c966b978eb5788b47#diff-de4ffc656d08e47bd1b8c716dca26f3eR109) based on output container has SV or not. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. 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