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DBZ-7362 DECFLOAT is precise decimal type
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147 changes: 147 additions & 0 deletions
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src/test/java/io/debezium/connector/db2/DatatypesFromSnapshotIT.java
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| /* | ||
| * Copyright Debezium Authors. | ||
| * | ||
| * Licensed under the Apache Software License version 2.0, available at http://www.apache.org/licenses/LICENSE-2.0 | ||
| */ | ||
| package io.debezium.connector.db2; | ||
|
|
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| import java.math.BigDecimal; | ||
| import java.sql.SQLException; | ||
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| import org.apache.kafka.connect.data.Struct; | ||
| import org.apache.kafka.connect.source.SourceRecord; | ||
| import org.assertj.core.api.Assertions; | ||
| import org.junit.After; | ||
| import org.junit.Before; | ||
| import org.junit.Test; | ||
|
|
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| import io.debezium.config.Configuration; | ||
| import io.debezium.connector.db2.Db2ConnectorConfig.SnapshotMode; | ||
| import io.debezium.connector.db2.util.TestHelper; | ||
| import io.debezium.data.VariableScaleDecimal; | ||
| import io.debezium.embedded.AbstractConnectorTest; | ||
| import io.debezium.relational.RelationalDatabaseConnectorConfig.DecimalHandlingMode; | ||
| import io.debezium.util.Testing; | ||
|
|
||
| /** | ||
| * Test fror Db2 datatypes. | ||
| * | ||
| * @author Jiri Pechanec | ||
| */ | ||
| public class DatatypesFromSnapshotIT extends AbstractConnectorTest { | ||
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| private Db2Connection connection; | ||
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| private static final String[] CREATE_TABLES = { | ||
| "CREATE TABLE dt_numeric (id int not null, df decfloat, df16 decfloat(16), df34 decfloat(34), primary key (id))" | ||
| }; | ||
| private static final String[] INSERT_DATA = { | ||
| "INSERT INTO dt_numeric VALUES(1, 1, 3.123456789012345678, 3.012345678901234567890123456789)" | ||
| }; | ||
|
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| @Before | ||
| public void before() throws SQLException { | ||
| connection = TestHelper.testConnection(); | ||
| connection.execute("DELETE FROM ASNCDC.IBMSNAP_REGISTER"); | ||
| connection.execute("DROP TABLE IF EXISTS dt_numeric"); | ||
| connection.execute(CREATE_TABLES); | ||
| connection.execute(INSERT_DATA); | ||
|
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| TestHelper.enableTableCdc(connection, "DT_NUMERIC"); | ||
| initializeConnectorTestFramework(); | ||
| Testing.Files.delete(TestHelper.DB_HISTORY_PATH); | ||
| Testing.Print.enable(); | ||
| } | ||
|
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| @After | ||
| public void after() throws SQLException { | ||
| if (connection != null) { | ||
| TestHelper.disableDbCdc(connection); | ||
| TestHelper.disableTableCdc(connection, "DT_NUMERIC"); | ||
| connection.execute("DROP TABLE dt_numeric"); | ||
| connection.execute("DELETE FROM ASNCDC.IBMSNAP_REGISTER"); | ||
| connection.execute("DELETE FROM ASNCDC.IBMQREP_COLVERSION"); | ||
| connection.execute("DELETE FROM ASNCDC.IBMQREP_TABVERSION"); | ||
| connection.close(); | ||
| } | ||
| } | ||
|
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| @Test | ||
| public void numericTypesPrecise() throws Exception { | ||
| final Configuration config = TestHelper.defaultConfig() | ||
| .with(Db2ConnectorConfig.SNAPSHOT_MODE, SnapshotMode.INITIAL) | ||
| .with(Db2ConnectorConfig.TABLE_INCLUDE_LIST, "db2inst1.dt_numeric") | ||
| .build(); | ||
|
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| start(Db2Connector.class, config); | ||
| assertConnectorIsRunning(); | ||
|
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| // Wait for snapshot completion | ||
| final SourceRecords records = consumeRecordsByTopic(1); | ||
| final SourceRecord rec = records.allRecordsInOrder().get(0); | ||
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| assertVariableScaleDecimal(((Struct) rec.value()).getStruct("after").get("DF"), new BigDecimal("1")); | ||
| // Loss of precision | ||
| assertVariableScaleDecimal(((Struct) rec.value()).getStruct("after").get("DF16"), new BigDecimal("3.123456789012346")); | ||
| assertVariableScaleDecimal(((Struct) rec.value()).getStruct("after").get("DF34"), new BigDecimal("3.012345678901234567890123456789")); | ||
| stopConnector(); | ||
| } | ||
|
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| @Test | ||
| public void numericTypesDouble() throws Exception { | ||
| final Configuration config = TestHelper.defaultConfig() | ||
| .with(Db2ConnectorConfig.SNAPSHOT_MODE, SnapshotMode.INITIAL) | ||
| .with(Db2ConnectorConfig.TABLE_INCLUDE_LIST, "db2inst1.dt_numeric") | ||
| .with(Db2ConnectorConfig.DECIMAL_HANDLING_MODE, DecimalHandlingMode.DOUBLE) | ||
| .build(); | ||
|
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| start(Db2Connector.class, config); | ||
| assertConnectorIsRunning(); | ||
|
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| // Wait for snapshot completion | ||
| final SourceRecords records = consumeRecordsByTopic(1); | ||
| final SourceRecord rec = records.allRecordsInOrder().get(0); | ||
|
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| Assertions.assertThat(((Struct) rec.value()).getStruct("after").get("DF")) | ||
| .isEqualTo(Double.valueOf(1)); | ||
| // Loss of precision | ||
| Assertions.assertThat(((Struct) rec.value()).getStruct("after").get("DF16")) | ||
| .isEqualTo(Double.valueOf(3.123456789012346)); | ||
| Assertions.assertThat(((Struct) rec.value()).getStruct("after").get("DF34")) | ||
| .isEqualTo(Double.valueOf(3.012345678901234567890123456789)); | ||
|
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| stopConnector(); | ||
| } | ||
|
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| @Test | ||
| public void numericTypesString() throws Exception { | ||
| final Configuration config = TestHelper.defaultConfig() | ||
| .with(Db2ConnectorConfig.SNAPSHOT_MODE, SnapshotMode.INITIAL) | ||
| .with(Db2ConnectorConfig.TABLE_INCLUDE_LIST, "db2inst1.dt_numeric") | ||
| .with(Db2ConnectorConfig.DECIMAL_HANDLING_MODE, DecimalHandlingMode.STRING) | ||
| .build(); | ||
|
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| start(Db2Connector.class, config); | ||
| assertConnectorIsRunning(); | ||
|
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| // Wait for snapshot completion | ||
| final SourceRecords records = consumeRecordsByTopic(1); | ||
| final SourceRecord rec = records.allRecordsInOrder().get(0); | ||
|
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| Assertions.assertThat(((Struct) rec.value()).getStruct("after").get("DF")) | ||
| .isEqualTo("1"); | ||
| // Loss of precision | ||
| Assertions.assertThat(((Struct) rec.value()).getStruct("after").get("DF16")) | ||
| .isEqualTo("3.123456789012346"); | ||
| Assertions.assertThat(((Struct) rec.value()).getStruct("after").get("DF34")) | ||
| .isEqualTo("3.012345678901234567890123456789"); | ||
|
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| stopConnector(); | ||
| } | ||
|
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| private void assertVariableScaleDecimal(Object actual, BigDecimal expected) { | ||
| final Struct v = (Struct) actual; | ||
| Assertions.assertThat(v.get(VariableScaleDecimal.SCALE_FIELD)).isEqualTo(expected.scale()); | ||
| Assertions.assertThat(v.get(VariableScaleDecimal.VALUE_FIELD)).isEqualTo(expected.unscaledValue().toByteArray()); | ||
| } | ||
| } |