rdblue commented on code in PR #7880: URL: https://github.com/apache/iceberg/pull/7880#discussion_r1315220207
########## core/src/test/java/org/apache/iceberg/view/ViewCatalogTests.java: ########## @@ -0,0 +1,876 @@ +/* + * 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.iceberg.view; + +import static org.apache.iceberg.types.Types.NestedField.required; +import static org.assertj.core.api.Assertions.assertThat; + +import org.apache.iceberg.Schema; +import org.apache.iceberg.catalog.CatalogWithViews; +import org.apache.iceberg.catalog.Namespace; +import org.apache.iceberg.catalog.SupportsNamespaces; +import org.apache.iceberg.catalog.TableIdentifier; +import org.apache.iceberg.exceptions.AlreadyExistsException; +import org.apache.iceberg.exceptions.NoSuchNamespaceException; +import org.apache.iceberg.exceptions.NoSuchViewException; +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableList; +import org.apache.iceberg.relocated.com.google.common.collect.ImmutableMap; +import org.apache.iceberg.types.Types; +import org.assertj.core.api.Assertions; +import org.junit.jupiter.api.Test; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.ValueSource; + +public abstract class ViewCatalogTests<C extends CatalogWithViews & SupportsNamespaces> { + protected static final Schema SCHEMA = + new Schema( + 1, + required(3, "id", Types.IntegerType.get(), "unique ID"), + required(4, "data", Types.StringType.get())); + + private static final Schema OTHER_SCHEMA = + new Schema(2, required(1, "some_id", Types.IntegerType.get())); + + protected abstract C catalog(); + + protected boolean requiresNamespaceCreate() { + return false; + } + + @Test + public void basicCreateView() { + TableIdentifier identifier = TableIdentifier.of("ns", "view"); + + if (requiresNamespaceCreate()) { + catalog().createNamespace(identifier.namespace()); + } + + assertThat(catalog().viewExists(identifier)).as("View should not exist").isFalse(); + + View view = + catalog() + .buildView(identifier) + .withSchema(SCHEMA) + .withDefaultNamespace(identifier.namespace()) + .withQuery("spark", "select * from ns.tbl") + .create(); + + assertThat(view).isNotNull(); + assertThat(catalog().viewExists(identifier)).as("View should exist").isTrue(); + + // validate view settings + assertThat(view.name()).isEqualTo(catalog().name() + "." + identifier); + assertThat(view.properties()).isEmpty(); + assertThat(view.history()) + .hasSize(1) + .first() + .extracting(ViewHistoryEntry::versionId) + .isEqualTo(1); + assertThat(view.schemas()).hasSize(1).containsKey(SCHEMA.schemaId()); + assertThat(view.schema().asStruct()).isEqualTo(SCHEMA.asStruct()); + assertThat(view.versions()).hasSize(1).containsExactly(view.currentVersion()); + + ViewVersion viewVersion = view.currentVersion(); + assertThat(viewVersion).isNotNull(); + assertThat(viewVersion.versionId()).isEqualTo(1); + assertThat(viewVersion.schemaId()).isEqualTo(SCHEMA.schemaId()); + assertThat(viewVersion.summary()).hasSize(1).containsEntry("operation", "create"); + assertThat(viewVersion.operation()).isEqualTo("create"); + assertThat(viewVersion.defaultCatalog()).isNull(); + assertThat(viewVersion.defaultNamespace()).isEqualTo(identifier.namespace()); + assertThat(viewVersion.representations()) + .hasSize(1) + .containsExactly( + ImmutableSQLViewRepresentation.builder() + .sql("select * from ns.tbl") + .dialect("spark") + .build()); + + assertThat(catalog().dropView(identifier)).isTrue(); + assertThat(catalog().viewExists(identifier)).as("View should not exist").isFalse(); + } + + @Test + public void completeCreateView() { + TableIdentifier identifier = TableIdentifier.of("ns", "view"); + + if (requiresNamespaceCreate()) { + catalog().createNamespace(identifier.namespace()); + } + + assertThat(catalog().viewExists(identifier)).as("View should not exist").isFalse(); + + View view = + catalog() + .buildView(identifier) + .withSchema(SCHEMA) + .withDefaultNamespace(identifier.namespace()) + .withQuery("spark", "select * from ns.tbl") + .withQuery("trino", "select * from ns.tbl using X") + .withProperty("prop1", "val1") + .withProperty("prop2", "val2") + .create(); + + assertThat(view).isNotNull(); + assertThat(catalog().viewExists(identifier)).as("View should exist").isTrue(); + + // validate view settings + assertThat(view.name()).isEqualTo(catalog().name() + "." + identifier); + assertThat(view.properties()).isEqualTo(ImmutableMap.of("prop1", "val1", "prop2", "val2")); + assertThat(view.history()) + .hasSize(1) + .first() + .extracting(ViewHistoryEntry::versionId) + .isEqualTo(1); + assertThat(view.schema().schemaId()).isEqualTo(SCHEMA.schemaId()); + assertThat(view.schema().asStruct()).isEqualTo(SCHEMA.asStruct()); + assertThat(view.schemas()).hasSize(1).containsKey(SCHEMA.schemaId()); + assertThat(view.versions()).hasSize(1).containsExactly(view.currentVersion()); + + ViewVersion viewVersion = view.currentVersion(); + assertThat(viewVersion).isNotNull(); + assertThat(viewVersion.versionId()).isEqualTo(1); + assertThat(viewVersion.schemaId()).isEqualTo(SCHEMA.schemaId()); + assertThat(viewVersion.summary()).hasSize(1).containsEntry("operation", "create"); + assertThat(viewVersion.operation()).isEqualTo("create"); + assertThat(viewVersion.defaultNamespace()).isEqualTo(identifier.namespace()); + assertThat(viewVersion.defaultCatalog()).isNull(); + assertThat(viewVersion.representations()) + .hasSize(2) + .containsExactly( + ImmutableSQLViewRepresentation.builder() + .sql("select * from ns.tbl") + .dialect("spark") + .build(), + ImmutableSQLViewRepresentation.builder() + .sql("select * from ns.tbl using X") + .dialect("trino") + .build()); + + assertThat(catalog().dropView(identifier)).isTrue(); + assertThat(catalog().viewExists(identifier)).as("View should not exist").isFalse(); + } + + @Test + public void createViewThatAlreadyExists() { + TableIdentifier tableIdentifier = TableIdentifier.of("ns", "table"); + TableIdentifier viewIdentifier = TableIdentifier.of("ns", "view"); + + if (requiresNamespaceCreate()) { + catalog().createNamespace(viewIdentifier.namespace()); + } + + assertThat(catalog().viewExists(viewIdentifier)).isFalse(); + + View view = + catalog() + .buildView(viewIdentifier) + .withSchema(SCHEMA) + .withDefaultNamespace(viewIdentifier.namespace()) + .withQuery("spark", "select * from ns.tbl") + .create(); + + assertThat(view).isNotNull(); + assertThat(catalog().viewExists(tableIdentifier)).isFalse(); + assertThat(catalog().viewExists(viewIdentifier)).isTrue(); + + Assertions.assertThatThrownBy( + () -> + catalog() + .buildView(viewIdentifier) + .withSchema(OTHER_SCHEMA) + .withQuery("spark", "select * from ns.tbl") + .create()) + .isInstanceOf(AlreadyExistsException.class) + .hasMessageStartingWith("View already exists: ns.view"); + + catalog().buildTable(tableIdentifier, SCHEMA).create(); + assertThat(catalog().tableExists(tableIdentifier)).isTrue(); + assertThat(catalog().viewExists(tableIdentifier)).isFalse(); + + Assertions.assertThatThrownBy( + () -> + catalog() + .buildView(tableIdentifier) + .withSchema(OTHER_SCHEMA) + .withDefaultNamespace(tableIdentifier.namespace()) + .withQuery("spark", "select * from ns.tbl") + .create()) + .isInstanceOf(AlreadyExistsException.class) + .hasMessageStartingWith("Table with same name already exists: ns.table"); + } + + @Test + public void renameView() { + TableIdentifier from = TableIdentifier.of("ns", "view"); + TableIdentifier to = TableIdentifier.of("ns", "renamedView"); + + if (requiresNamespaceCreate()) { + catalog().createNamespace(from.namespace()); + } + + catalog() + .buildView(from) + .withSchema(SCHEMA) + .withDefaultNamespace(from.namespace()) + .withQuery("spark", "select * from ns.tbl") + .create(); + + assertThat(catalog().viewExists(from)).as("View should exist").isTrue(); + assertThat(catalog().listViews(from.namespace())).containsExactly(from); + + catalog().renameView(from, to); + + assertThat(catalog().listViews(to.namespace())).containsExactly(to); + assertThat(catalog().viewExists(from)).as("View should not exist").isFalse(); + assertThat(catalog().viewExists(to)).as("View should exist").isTrue(); + + View view = catalog().loadView(to); + assertThat(view).isNotNull(); + + // validate view settings + assertThat(view.name()).isEqualTo(catalog().name() + "." + to); + assertThat(view.properties()).isEmpty(); + assertThat(view.history()) + .hasSize(1) + .first() + .extracting(ViewHistoryEntry::versionId) + .isEqualTo(1); + assertThat(view.schema().asStruct()).isEqualTo(SCHEMA.asStruct()); + assertThat(view.schemas()).hasSize(1).containsKey(SCHEMA.schemaId()); + assertThat(view.versions()).hasSize(1).containsExactly(view.currentVersion()); + + ViewVersion viewVersion = view.currentVersion(); + assertThat(viewVersion).isNotNull(); Review Comment: Is it possible to create an expected version and have just one assertion? -- This is an automated message from the Apache Git Service. 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