rdblue commented on code in PR #9340:
URL: https://github.com/apache/iceberg/pull/9340#discussion_r1431863233


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spark/v3.5/spark-extensions/src/test/java/org/apache/iceberg/spark/extensions/TestViews.java:
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@@ -0,0 +1,152 @@
+/*
+ * 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.spark.extensions;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+import org.apache.iceberg.Schema;
+import org.apache.iceberg.catalog.Catalog;
+import org.apache.iceberg.catalog.Namespace;
+import org.apache.iceberg.catalog.TableIdentifier;
+import org.apache.iceberg.catalog.ViewCatalog;
+import org.apache.iceberg.relocated.com.google.common.collect.Lists;
+import org.apache.iceberg.spark.Spark3Util;
+import org.apache.iceberg.spark.SparkCatalogConfig;
+import org.apache.iceberg.spark.source.SimpleRecord;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.catalyst.analysis.NoSuchTableException;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runners.Parameterized;
+
+public class TestViews extends SparkExtensionsTestBase {

Review Comment:
   We need more test cases:
   
   1. A view that is hidden by a temporary view
   2. A view that is hidden by a global temporary view
   3. A view that references another view
   4. A view that references a view that is also a temporary view (and the 
persistent view is used)
   5. A view with a CTE
   6. Loading from the Spark session catalog (or alternatively, remove the 
updates to session catalog and we can do it in an update)
   7. A view that references a table that doesn't exist



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