rdblue commented on code in PR #7759: URL: https://github.com/apache/iceberg/pull/7759#discussion_r1225606566
########## core/src/test/java/org/apache/iceberg/view/TestViewMetadata.java: ########## @@ -0,0 +1,280 @@ +/* + * 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.assertj.core.api.Assertions.assertThat; +import static org.assertj.core.api.Assertions.assertThatThrownBy; + +import org.apache.iceberg.Schema; +import org.apache.iceberg.types.Types; +import org.junit.jupiter.api.Test; + +public class TestViewMetadata { + + @Test + public void nullAndMissingFields() { + assertThatThrownBy(() -> ImmutableViewMetadata.builder().build()) + .isInstanceOf(IllegalStateException.class) + .hasMessage( + "Cannot build ViewMetadata, some of required attributes are not set [formatVersion, location, currentSchemaId, currentVersionId]"); + + assertThatThrownBy(() -> ImmutableViewMetadata.builder().formatVersion(1).build()) + .isInstanceOf(IllegalStateException.class) + .hasMessage( + "Cannot build ViewMetadata, some of required attributes are not set [location, currentSchemaId, currentVersionId]"); + + assertThatThrownBy( + () -> ImmutableViewMetadata.builder().formatVersion(1).location("location").build()) + .isInstanceOf(IllegalStateException.class) + .hasMessage( + "Cannot build ViewMetadata, some of required attributes are not set [currentSchemaId, currentVersionId]"); + + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .build()) + .isInstanceOf(IllegalStateException.class) + .hasMessage( + "Cannot build ViewMetadata, some of required attributes are not set [currentVersionId]"); + + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .currentVersionId(1) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Invalid view versions: empty"); + } + + @Test + public void unsupportedFormatVersion() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(23) + .location("location") + .currentSchemaId(1) + .currentVersionId(1) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Unsupported format version: 23"); + } + + @Test + public void emptyViewVersion() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .currentVersionId(1) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Invalid view versions: empty"); + } + + @Test + public void emptySchemas() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .currentVersionId(1) + .addVersions( + ImmutableViewVersion.builder() + .schemaId(1) + .versionId(1) + .timestampMillis(23L) + .putSummary("operation", "op") + .build()) + .addHistory( + ImmutableViewHistoryEntry.builder() + .timestampMillis(23L) + .versionId(1) + .build()) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Invalid schemas: empty"); + } + + @Test + public void invalidCurrentVersionId() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .currentVersionId(23) + .addVersions( + ImmutableViewVersion.builder() + .schemaId(1) + .versionId(1) + .timestampMillis(23L) + .putSummary("operation", "op") + .build()) + .addHistory( + ImmutableViewHistoryEntry.builder() + .timestampMillis(23L) + .versionId(1) + .build()) + .addSchemas( + new Schema(1, Types.NestedField.required(1, "x", Types.LongType.get()))) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Cannot find current version 23 in view versions: [1]"); + } + + @Test + public void invalidCurrentSchemaId() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(23) + .currentVersionId(1) + .addVersions( + ImmutableViewVersion.builder() + .schemaId(1) + .versionId(1) + .timestampMillis(23L) + .putSummary("operation", "op") + .build()) + .addHistory( + ImmutableViewHistoryEntry.builder() + .timestampMillis(23L) + .versionId(1) + .build()) + .addSchemas( + new Schema(1, Types.NestedField.required(1, "x", Types.LongType.get()))) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Cannot find current schema with id 23 in schemas: [1]"); + } + + @Test + public void invalidVersionHistorySizeToKeep() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .versionHistorySizeToKeep(0) + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .currentVersionId(1) + .addVersions( + ImmutableViewVersion.builder() + .schemaId(1) + .versionId(1) + .timestampMillis(23L) + .putSummary("operation", "op") + .build()) + .addHistory( + ImmutableViewHistoryEntry.builder() + .timestampMillis(23L) + .versionId(1) + .build()) + .addSchemas( + new Schema(1, Types.NestedField.required(1, "x", Types.LongType.get()))) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("version.history.num-entries must be positive but was 0"); + } + + @Test + public void emptyHistory() { + assertThatThrownBy( + () -> + ImmutableViewMetadata.builder() + .formatVersion(1) + .location("location") + .currentSchemaId(1) + .currentVersionId(2) + .addVersions( + ImmutableViewVersion.builder() + .schemaId(1) + .versionId(1) + .timestampMillis(23L) + .putSummary("operation", "op") + .build()) + .addVersions( + ImmutableViewVersion.builder() + .schemaId(1) + .versionId(2) + .timestampMillis(24L) + .putSummary("operation", "op") + .build()) + .addSchemas( + new Schema(1, Types.NestedField.required(1, "x", Types.LongType.get()))) + .build()) + .isInstanceOf(IllegalArgumentException.class) + .hasMessage("Invalid view history: empty"); + } + + @Test + public void viewHistoryNormalization() { + ImmutableViewMetadata viewMetadata = + ImmutableViewMetadata.builder() + .versionHistorySizeToKeep(1) Review Comment: I don't think this needs to be included in the builder. -- This is an automated message from the Apache Git Service. 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