diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt index 540219c2eec..ef0b3c68901 100644 --- a/hadoop-mapreduce-project/CHANGES.txt +++ b/hadoop-mapreduce-project/CHANGES.txt @@ -50,6 +50,10 @@ Release 2.3.0 - UNRELEASED MAPREDUCE-5514. Fix TestRMContainerAllocator. (Zhijie Shen via acmurthy) + MAPREDUCE-5102. fix coverage org.apache.hadoop.mapreduce.lib.db and + org.apache.hadoop.mapred.lib.db (Aleksey Gorshkov, Andrey Klochkov, and + Nathan Roberts via jlowe) + Release 2.2.1 - UNRELEASED INCOMPATIBLE CHANGES diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/lib/db/TestDBInputFormat.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/lib/db/TestDBInputFormat.java new file mode 100644 index 00000000000..492f79d56e8 --- /dev/null +++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapred/lib/db/TestDBInputFormat.java @@ -0,0 +1,157 @@ +/** + * 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.hadoop.mapred.lib.db; + +import java.sql.DriverManager; + +import org.apache.hadoop.io.LongWritable; +import org.apache.hadoop.mapred.JobConf; +import org.apache.hadoop.mapred.RecordReader; +import org.apache.hadoop.mapred.Reporter; +import org.apache.hadoop.mapred.lib.db.DBInputFormat.DBInputSplit; +import org.apache.hadoop.mapred.lib.db.DBInputFormat.DBRecordReader; +import org.apache.hadoop.mapred.lib.db.DBInputFormat.NullDBWritable; +import org.apache.hadoop.mapred.InputSplit; +import org.apache.hadoop.mapreduce.MRJobConfig; +import org.apache.hadoop.mapred.lib.db.DBConfiguration; +import org.apache.hadoop.mapreduce.lib.db.DriverForTest; +import org.junit.Test; + +import static org.junit.Assert.*; +import static org.mockito.Mockito.*; + +public class TestDBInputFormat { + + /** + * test DBInputFormat class. Class should split result for chunks + * @throws Exception + */ + @Test(timeout = 10000) + public void testDBInputFormat() throws Exception { + JobConf configuration = new JobConf(); + setupDriver(configuration); + + DBInputFormat format = new DBInputFormat(); + format.setConf(configuration); + format.setConf(configuration); + DBInputFormat.DBInputSplit splitter = new DBInputFormat.DBInputSplit(1, 10); + Reporter reporter = mock(Reporter.class); + RecordReader reader = format.getRecordReader( + splitter, configuration, reporter); + + configuration.setInt(MRJobConfig.NUM_MAPS, 3); + InputSplit[] lSplits = format.getSplits(configuration, 3); + assertEquals(5, lSplits[0].getLength()); + assertEquals(3, lSplits.length); + + // test reader .Some simple tests + assertEquals(LongWritable.class, reader.createKey().getClass()); + assertEquals(0, reader.getPos()); + assertEquals(0, reader.getProgress(), 0.001); + reader.close(); + } + + /** + * test configuration for db. should works DBConfiguration.* parameters. + */ + @Test (timeout = 5000) + public void testSetInput() { + JobConf configuration = new JobConf(); + + String[] fieldNames = { "field1", "field2" }; + DBInputFormat.setInput(configuration, NullDBWritable.class, "table", + "conditions", "orderBy", fieldNames); + assertEquals( + "org.apache.hadoop.mapred.lib.db.DBInputFormat$NullDBWritable", + configuration.getClass(DBConfiguration.INPUT_CLASS_PROPERTY, null) + .getName()); + assertEquals("table", + configuration.get(DBConfiguration.INPUT_TABLE_NAME_PROPERTY, null)); + + String[] fields = configuration + .getStrings(DBConfiguration.INPUT_FIELD_NAMES_PROPERTY); + assertEquals("field1", fields[0]); + assertEquals("field2", fields[1]); + + assertEquals("conditions", + configuration.get(DBConfiguration.INPUT_CONDITIONS_PROPERTY, null)); + assertEquals("orderBy", + configuration.get(DBConfiguration.INPUT_ORDER_BY_PROPERTY, null)); + + configuration = new JobConf(); + + DBInputFormat.setInput(configuration, NullDBWritable.class, "query", + "countQuery"); + assertEquals("query", configuration.get(DBConfiguration.INPUT_QUERY, null)); + assertEquals("countQuery", + configuration.get(DBConfiguration.INPUT_COUNT_QUERY, null)); + + JobConf jConfiguration = new JobConf(); + DBConfiguration.configureDB(jConfiguration, "driverClass", "dbUrl", "user", + "password"); + assertEquals("driverClass", + jConfiguration.get(DBConfiguration.DRIVER_CLASS_PROPERTY)); + assertEquals("dbUrl", jConfiguration.get(DBConfiguration.URL_PROPERTY)); + assertEquals("user", jConfiguration.get(DBConfiguration.USERNAME_PROPERTY)); + assertEquals("password", + jConfiguration.get(DBConfiguration.PASSWORD_PROPERTY)); + jConfiguration = new JobConf(); + DBConfiguration.configureDB(jConfiguration, "driverClass", "dbUrl"); + assertEquals("driverClass", + jConfiguration.get(DBConfiguration.DRIVER_CLASS_PROPERTY)); + assertEquals("dbUrl", jConfiguration.get(DBConfiguration.URL_PROPERTY)); + assertNull(jConfiguration.get(DBConfiguration.USERNAME_PROPERTY)); + assertNull(jConfiguration.get(DBConfiguration.PASSWORD_PROPERTY)); + } + + /** + * + * test DBRecordReader. This reader should creates keys, values, know about position.. + */ + @SuppressWarnings("unchecked") + @Test (timeout = 5000) + public void testDBRecordReader() throws Exception { + + JobConf job = mock(JobConf.class); + DBConfiguration dbConfig = mock(DBConfiguration.class); + String[] fields = { "field1", "filed2" }; + + @SuppressWarnings("rawtypes") + DBRecordReader reader = new DBInputFormat().new DBRecordReader( + new DBInputSplit(), NullDBWritable.class, job, + DriverForTest.getConnection(), dbConfig, "condition", fields, "table"); + LongWritable key = reader.createKey(); + assertEquals(0, key.get()); + DBWritable value = reader.createValue(); + assertEquals( + "org.apache.hadoop.mapred.lib.db.DBInputFormat$NullDBWritable", value + .getClass().getName()); + assertEquals(0, reader.getPos()); + assertFalse(reader.next(key, value)); + + } + + private void setupDriver(JobConf configuration) throws Exception { + configuration.set(DBConfiguration.URL_PROPERTY, "testUrl"); + DriverManager.registerDriver(new DriverForTest()); + configuration.set(DBConfiguration.DRIVER_CLASS_PROPERTY, + DriverForTest.class.getCanonicalName()); + } + +} diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/DriverForTest.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/DriverForTest.java new file mode 100644 index 00000000000..ea40c8ed179 --- /dev/null +++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/DriverForTest.java @@ -0,0 +1,112 @@ +/** + * 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.hadoop.mapreduce.lib.db; + +import java.sql.Connection; +import java.sql.DatabaseMetaData; +import java.sql.Driver; +import java.sql.DriverPropertyInfo; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.sql.SQLFeatureNotSupportedException; +import java.sql.Statement; +import java.util.Properties; +import java.util.logging.Logger; + +import static org.mockito.Matchers.any; +import static org.mockito.Mockito.*; + +/** + * class emulates a connection to database + * + */ +public class DriverForTest implements Driver { + + public static Connection getConnection() { + Connection connection = mock(FakeConnection.class); + try { + Statement statement = mock(Statement.class); + ResultSet results = mock(ResultSet.class); + when(results.getLong(1)).thenReturn(15L); + when(statement.executeQuery(any(String.class))).thenReturn(results); + when(connection.createStatement()).thenReturn(statement); + + DatabaseMetaData metadata = mock(DatabaseMetaData.class); + when(metadata.getDatabaseProductName()).thenReturn("Test"); + when(connection.getMetaData()).thenReturn(metadata); + + PreparedStatement reparedStatement0= mock(PreparedStatement.class); + when(connection.prepareStatement(anyString())).thenReturn( + reparedStatement0); + + PreparedStatement preparedStatement = mock(PreparedStatement.class); + ResultSet resultSet = mock(ResultSet.class); + when(resultSet.next()).thenReturn(false); + when(preparedStatement.executeQuery()).thenReturn(resultSet); + + when(connection.prepareStatement(anyString(), anyInt(), anyInt())) + .thenReturn(preparedStatement); + } catch (SQLException e) { + ; + } + return connection; + } + + @Override + public boolean acceptsURL(String arg0) throws SQLException { + return "testUrl".equals(arg0); + } + + @Override + public Connection connect(String arg0, Properties arg1) throws SQLException { + + return getConnection(); + } + + @Override + public int getMajorVersion() { + return 1; + } + + @Override + public int getMinorVersion() { + return 1; + } + + @Override + public DriverPropertyInfo[] getPropertyInfo(String arg0, Properties arg1) + throws SQLException { + + return null; + } + + @Override + public boolean jdbcCompliant() { + return true; + } + + public Logger getParentLogger() throws SQLFeatureNotSupportedException { + throw new SQLFeatureNotSupportedException(); + } + + private interface FakeConnection extends Connection{ + public void setSessionTimeZone(String arg); + } + +} diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/TestDbClasses.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/TestDbClasses.java new file mode 100644 index 00000000000..8c8fcfac220 --- /dev/null +++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/TestDbClasses.java @@ -0,0 +1,170 @@ +/** + * 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.hadoop.mapreduce.lib.db; + +import java.sql.Connection; +import java.sql.Types; +import java.util.List; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.mapreduce.Job; +import org.apache.hadoop.mapreduce.InputSplit; +import org.apache.hadoop.mapreduce.JobContext; +import org.apache.hadoop.mapreduce.MRJobConfig; +import org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit; +import org.apache.hadoop.mapreduce.lib.db.DBInputFormat.NullDBWritable; +import org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat.DataDrivenDBInputSplit; +import org.junit.Test; + +import static org.junit.Assert.*; +import static org.mockito.Mockito.*; + +public class TestDbClasses { + /** + * test splitters from DataDrivenDBInputFormat. For different data types may + * be different splitter + */ + @Test(timeout = 1000) + public void testDataDrivenDBInputFormatSplitter() { + DataDrivenDBInputFormat format = new DataDrivenDBInputFormat(); + testCommonSplitterTypes(format); + assertEquals(DateSplitter.class, format.getSplitter(Types.TIMESTAMP) + .getClass()); + assertEquals(DateSplitter.class, format.getSplitter(Types.DATE).getClass()); + assertEquals(DateSplitter.class, format.getSplitter(Types.TIME).getClass()); + } + + @Test(timeout = 1000) + public void testDataDrivenDBInputFormat() throws Exception { + JobContext jobContext = mock(JobContext.class); + Configuration configuration = new Configuration(); + configuration.setInt(MRJobConfig.NUM_MAPS, 1); + + when(jobContext.getConfiguration()).thenReturn(configuration); + DataDrivenDBInputFormat format = new DataDrivenDBInputFormat(); + List splits = format.getSplits(jobContext); + assertEquals(1, splits.size()); + DataDrivenDBInputSplit split = (DataDrivenDBInputSplit) splits.get(0); + assertEquals("1=1", split.getLowerClause()); + assertEquals("1=1", split.getUpperClause()); + + // 2 + configuration.setInt(MRJobConfig.NUM_MAPS, 2); + + DataDrivenDBInputFormat.setBoundingQuery(configuration, "query"); + assertEquals("query", + configuration.get(DBConfiguration.INPUT_BOUNDING_QUERY)); + + Job job = mock(Job.class); + when(job.getConfiguration()).thenReturn(configuration); + DataDrivenDBInputFormat.setInput(job, NullDBWritable.class, "query", + "Bounding Query"); + + assertEquals("Bounding Query", + configuration.get(DBConfiguration.INPUT_BOUNDING_QUERY)); + } + + @Test(timeout = 1000) + public void testOracleDataDrivenDBInputFormat() throws Exception { + OracleDataDrivenDBInputFormat format = + new OracleDataDrivenDBInputFormatForTest(); + testCommonSplitterTypes(format); + assertEquals(OracleDateSplitter.class, format.getSplitter(Types.TIMESTAMP) + .getClass()); + assertEquals(OracleDateSplitter.class, + format.getSplitter(Types.DATE).getClass()); + assertEquals(OracleDateSplitter.class, + format.getSplitter(Types.TIME).getClass()); + } + + /** + * test generate sql script for OracleDBRecordReader. + */ + + @Test(timeout = 2000) + public void testOracleDBRecordReader() throws Exception { + DBInputSplit splitter = new DBInputSplit(1, 10); + Configuration configuration = new Configuration(); + Connection connect = DriverForTest.getConnection(); + + DBConfiguration dbConfiguration = new DBConfiguration(configuration); + dbConfiguration.setInputOrderBy("Order"); + String[] fields = { "f1", "f2" }; + + OracleDBRecordReader recorder = new OracleDBRecordReader( + splitter, NullDBWritable.class, configuration, connect, + dbConfiguration, "condition", fields, "table"); + assertEquals( + "SELECT * FROM (SELECT a.*,ROWNUM dbif_rno FROM ( SELECT f1, f2 FROM table WHERE condition ORDER BY Order ) a WHERE rownum <= 1 + 9 ) WHERE dbif_rno >= 1", + recorder.getSelectQuery()); + } + + private void testCommonSplitterTypes( + DataDrivenDBInputFormat format) { + assertEquals(BigDecimalSplitter.class, format.getSplitter(Types.DECIMAL) + .getClass()); + assertEquals(BigDecimalSplitter.class, format.getSplitter(Types.NUMERIC) + .getClass()); + assertEquals(BooleanSplitter.class, format.getSplitter(Types.BOOLEAN) + .getClass()); + assertEquals(BooleanSplitter.class, format.getSplitter(Types.BIT) + .getClass()); + assertEquals(IntegerSplitter.class, format.getSplitter(Types.BIGINT) + .getClass()); + assertEquals(IntegerSplitter.class, format.getSplitter(Types.TINYINT) + .getClass()); + assertEquals(IntegerSplitter.class, format.getSplitter(Types.SMALLINT) + .getClass()); + assertEquals(IntegerSplitter.class, format.getSplitter(Types.INTEGER) + .getClass()); + assertEquals(FloatSplitter.class, format.getSplitter(Types.DOUBLE) + .getClass()); + assertEquals(FloatSplitter.class, format.getSplitter(Types.REAL).getClass()); + assertEquals(FloatSplitter.class, format.getSplitter(Types.FLOAT) + .getClass()); + assertEquals(TextSplitter.class, format.getSplitter(Types.LONGVARCHAR) + .getClass()); + assertEquals(TextSplitter.class, format.getSplitter(Types.CHAR).getClass()); + assertEquals(TextSplitter.class, format.getSplitter(Types.VARCHAR) + .getClass()); + // if unknown data type splitter is null + assertNull(format.getSplitter(Types.BINARY)); + } + + private class OracleDataDrivenDBInputFormatForTest extends + OracleDataDrivenDBInputFormat { + + @Override + public DBConfiguration getDBConf() { + + String[] names = { "field1", "field2" }; + DBConfiguration result = mock(DBConfiguration.class); + when(result.getInputConditions()).thenReturn("conditions"); + when(result.getInputFieldNames()).thenReturn(names); + when(result.getInputTableName()).thenReturn("table"); + return result; + } + + @Override + public Connection getConnection() { + return DriverForTest.getConnection(); + } + + } + +} diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/TestSplitters.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/TestSplitters.java new file mode 100644 index 00000000000..024c7940986 --- /dev/null +++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/lib/db/TestSplitters.java @@ -0,0 +1,164 @@ +/** + * 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.hadoop.mapreduce.lib.db; + +import static org.junit.Assert.assertEquals; +import static org.junit.Assert.assertTrue; +import static org.mockito.Mockito.mock; +import static org.mockito.Mockito.when; + +import java.io.IOException; +import java.math.BigDecimal; +import java.sql.ResultSet; +import java.util.List; +import java.util.regex.Pattern; + +import org.apache.hadoop.conf.Configuration; +import org.apache.hadoop.mapreduce.InputSplit; +import org.apache.hadoop.mapreduce.MRJobConfig; +import org.apache.hadoop.mapreduce.lib.db.DataDrivenDBInputFormat.DataDrivenDBInputSplit; +import org.junit.Before; +import org.junit.Test; + +/** + * Test Splitters. Splitters should build parts of sql sentences for split result. + */ +public class TestSplitters { + + private Configuration configuration; + + @Before + public void setup() { + configuration = new Configuration(); + configuration.setInt(MRJobConfig.NUM_MAPS, 2); + } + + @Test(timeout=2000) + public void testBooleanSplitter() throws Exception{ + BooleanSplitter splitter = new BooleanSplitter(); + ResultSet result = mock(ResultSet.class); + when(result.getString(1)).thenReturn("result1"); + + List splits=splitter.split(configuration, result, "column"); + assertSplits(new String[] {"column = FALSE column = FALSE", + "column IS NULL column IS NULL"}, splits); + + when(result.getString(1)).thenReturn("result1"); + when(result.getString(2)).thenReturn("result2"); + when(result.getBoolean(1)).thenReturn(true); + when(result.getBoolean(2)).thenReturn(false); + + splits=splitter.split(configuration, result, "column"); + assertEquals(0, splits.size()); + + when(result.getString(1)).thenReturn("result1"); + when(result.getString(2)).thenReturn("result2"); + when(result.getBoolean(1)).thenReturn(false); + when(result.getBoolean(2)).thenReturn(true); + + splits = splitter.split(configuration, result, "column"); + assertSplits(new String[] { + "column = FALSE column = FALSE", ".*column = TRUE"}, splits); + } + + @Test(timeout=2000) + public void testFloatSplitter() throws Exception{ + FloatSplitter splitter = new FloatSplitter(); + + ResultSet results = mock(ResultSet.class); + + List splits = splitter.split(configuration, results, "column"); + assertSplits(new String[] {".*column IS NULL"}, splits); + + when(results.getString(1)).thenReturn("result1"); + when(results.getString(2)).thenReturn("result2"); + when(results.getDouble(1)).thenReturn(5.0); + when(results.getDouble(2)).thenReturn(7.0); + + splits = splitter.split(configuration, results, "column1"); + assertSplits(new String[] {"column1 >= 5.0 column1 < 6.0", + "column1 >= 6.0 column1 <= 7.0"}, splits); + } + + @Test(timeout=2000) + public void testBigDecimalSplitter() throws Exception{ + BigDecimalSplitter splitter = new BigDecimalSplitter(); + ResultSet result = mock(ResultSet.class); + + List splits = splitter.split(configuration, result, "column"); + assertSplits(new String[] {".*column IS NULL"}, splits); + + when(result.getString(1)).thenReturn("result1"); + when(result.getString(2)).thenReturn("result2"); + when(result.getBigDecimal(1)).thenReturn(new BigDecimal(10)); + when(result.getBigDecimal(2)).thenReturn(new BigDecimal(12)); + + splits = splitter.split(configuration, result, "column1"); + assertSplits(new String[] {"column1 >= 10 column1 < 11", + "column1 >= 11 column1 <= 12"}, splits); + } + + @Test(timeout=2000) + public void testIntegerSplitter() throws Exception{ + IntegerSplitter splitter = new IntegerSplitter(); + ResultSet result = mock(ResultSet.class); + + List splits = splitter.split(configuration, result, "column"); + assertSplits(new String[] {".*column IS NULL"}, splits); + + when(result.getString(1)).thenReturn("result1"); + when(result.getString(2)).thenReturn("result2"); + when(result.getLong(1)).thenReturn(8L); + when(result.getLong(2)).thenReturn(19L); + + splits = splitter.split(configuration, result, "column1"); + assertSplits(new String[] {"column1 >= 8 column1 < 13", + "column1 >= 13 column1 < 18", "column1 >= 18 column1 <= 19"}, splits); + } + + @Test(timeout=2000) + public void testTextSplitter() throws Exception{ + TextSplitter splitter = new TextSplitter(); + ResultSet result = mock(ResultSet.class); + + List splits = splitter.split(configuration, result, "column"); + assertSplits(new String[] {"column IS NULL column IS NULL"}, splits); + + when(result.getString(1)).thenReturn("result1"); + when(result.getString(2)).thenReturn("result2"); + + splits = splitter.split(configuration, result, "column1"); + assertSplits(new String[] {"column1 >= 'result1' column1 < 'result1.'", + "column1 >= 'result1' column1 <= 'result2'"}, splits); + } + + private void assertSplits(String[] expectedSplitRE, + List splits) throws IOException { + assertEquals(expectedSplitRE.length, splits.size()); + for (int i = 0; i < expectedSplitRE.length; i++) { + DataDrivenDBInputSplit split = (DataDrivenDBInputSplit) splits.get(i); + String actualExpr = split.getLowerClause() + " " + split.getUpperClause(); + assertTrue("Split #" + (i+1) + " expression is wrong." + + " Expected " + expectedSplitRE[i] + + " Actual " + actualExpr, + Pattern.matches(expectedSplitRE[i], actualExpr)); + } + } + +}