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[CALCITE-6724] MockTable support for multiple (individual & composite…
…) keys MockTable currently allows only one key to be specified; the key can be either simple or composite. In real scenarios though a table can have multiple keys.
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testkit/src/test/java/org/apache/calcite/test/MockTableTest.java
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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.calcite.test; | ||
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| import org.apache.calcite.rel.type.RelDataTypeSystem; | ||
| import org.apache.calcite.sql.type.SqlTypeFactoryImpl; | ||
| import org.apache.calcite.sql.type.SqlTypeName; | ||
| import org.apache.calcite.sql2rel.NullInitializerExpressionFactory; | ||
| import org.apache.calcite.test.catalog.MockCatalogReader; | ||
| import org.apache.calcite.util.ImmutableBitSet; | ||
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|
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| import org.junit.jupiter.api.Test; | ||
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| import static org.hamcrest.MatcherAssert.assertThat; | ||
| import static org.hamcrest.Matchers.hasToString; | ||
| import static org.junit.jupiter.api.Assertions.assertThrows; | ||
|
|
||
| /** | ||
| * Tests for {@link org.apache.calcite.test.catalog.MockCatalogReader.MockTable}. | ||
| */ | ||
| public class MockTableTest { | ||
| private static final SqlTypeFactoryImpl TYPE_FACTORY = | ||
| new SqlTypeFactoryImpl(RelDataTypeSystem.DEFAULT); | ||
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| @Test void testAddColumnCreatesIndividualKeys() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER), true); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER), true); | ||
| assertThat(t.getKeys(), hasToString("[{0}, {1}]")); | ||
| } | ||
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| @Test void testAddKeyWithOneEntryCreatesSimpleKey() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addKey("k1"); | ||
| assertThat(t.getKeys(), hasToString("[{0}]")); | ||
| } | ||
|
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| @Test void testAddKeyWithMultipleEntriesCreatesCompositeKey() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addKey("k1", "k2"); | ||
| assertThat(t.getKeys(), hasToString("[{0, 1}]")); | ||
| } | ||
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| @Test void testAddKeyWithMissingColumnNameThrowsException() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| assertThrows(IllegalArgumentException.class, () -> t.addKey("k1", "k3")); | ||
| } | ||
|
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| @Test void testAddKeyUsingColumnIndex() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addKey(ImmutableBitSet.of(0, 1)); | ||
| assertThat(t.getKeys(), hasToString("[{0, 1}]")); | ||
| } | ||
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| @Test void testAddKeyUsingWrongIndexThrowsException() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| assertThrows(IllegalArgumentException.class, () -> t.addKey(ImmutableBitSet.of(0, 2))); | ||
| } | ||
|
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| @Test void testAddKeyMultipleTimes() { | ||
| MockCatalogReader.MockTable t = newTable(); | ||
| t.addColumn("k1", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k2", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addColumn("k3", TYPE_FACTORY.createSqlType(SqlTypeName.INTEGER)); | ||
| t.addKey("k1"); | ||
| t.addKey("k2", "k3"); | ||
| assertThat(t.getKeys(), hasToString("[{0}, {1, 2}]")); | ||
| } | ||
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| private static MockCatalogReader.MockTable newTable() { | ||
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| MockCatalogReader catalogReader = new MockCatalogReader(TYPE_FACTORY, false) { | ||
| @Override public MockCatalogReader init() { | ||
| return this; | ||
| } | ||
| }; | ||
| return new MockCatalogReader.MockTable(catalogReader, "catalog", "schema", "table", false, | ||
| false, 0.0, null, NullInitializerExpressionFactory.INSTANCE); | ||
| } | ||
| } |