rdblue commented on a change in pull request #1769:
URL: https://github.com/apache/iceberg/pull/1769#discussion_r523230240



##########
File path: 
spark3-extensions/src/test/java/org/apache/iceberg/spark/extensions/TestRollbackToTimestampProcedure.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.spark.extensions;
+
+import java.time.LocalDateTime;
+import java.util.List;
+import java.util.Map;
+import org.apache.iceberg.AssertHelpers;
+import org.apache.iceberg.Snapshot;
+import org.apache.iceberg.Table;
+import org.apache.iceberg.relocated.com.google.common.collect.ImmutableList;
+import org.apache.spark.sql.AnalysisException;
+import org.apache.spark.sql.Dataset;
+import org.apache.spark.sql.Row;
+import org.apache.spark.sql.catalyst.analysis.NoSuchProcedureException;
+import org.junit.After;
+import org.junit.Assume;
+import org.junit.Test;
+
+public class TestRollbackToTimestampProcedure extends SparkExtensionsTestBase {
+
+  public TestRollbackToTimestampProcedure(String catalogName, String 
implementation, Map<String, String> config) {
+    super(catalogName, implementation, config);
+  }
+
+  @After
+  public void removeTables() {
+    sql("DROP TABLE IF EXISTS %s", tableName);
+  }
+
+  @Test
+  public void testRollbackToTimestampUsingPositionalArgs() throws 
InterruptedException {
+    sql("CREATE TABLE %s (id bigint NOT NULL, data string) USING iceberg", 
tableName);
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    Table table = validationCatalog.loadTable(tableIdent);
+    Snapshot firstSnapshot = table.currentSnapshot();
+    String firstSnapshotTimestamp = LocalDateTime.now().toString();
+
+    Thread.sleep(1000);
+
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    assertEquals("Should have expected rows",
+        ImmutableList.of(row(1L, "a"), row(1L, "a")),
+        sql("SELECT * FROM %s ORDER BY id", tableName));
+
+    table.refresh();
+
+    Snapshot secondSnapshot = table.currentSnapshot();
+
+    List<Object[]> output = sql(
+        "CALL %s.system.rollback_to_timestamp('%s', '%s', TIMESTAMP '%s')",
+        catalogName, tableIdent.namespace(), tableIdent.name(), 
firstSnapshotTimestamp);
+
+    assertEquals("Procedure output must match",
+        ImmutableList.of(row(secondSnapshot.snapshotId(), 
firstSnapshot.snapshotId())),
+        output);
+
+    assertEquals("Rollback must be successful",
+        ImmutableList.of(row(1L, "a")),
+        sql("SELECT * FROM %s ORDER BY id", tableName));
+  }
+
+  @Test
+  public void testRollbackToTimestampUsingNamedArgs() throws 
InterruptedException {
+    sql("CREATE TABLE %s (id bigint NOT NULL, data string) USING iceberg", 
tableName);
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    Table table = validationCatalog.loadTable(tableIdent);
+    Snapshot firstSnapshot = table.currentSnapshot();
+    String firstSnapshotTimestamp = LocalDateTime.now().toString();
+
+    Thread.sleep(1000);
+
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    assertEquals("Should have expected rows",
+        ImmutableList.of(row(1L, "a"), row(1L, "a")),
+        sql("SELECT * FROM %s ORDER BY id", tableName));
+
+    table.refresh();
+
+    Snapshot secondSnapshot = table.currentSnapshot();
+
+    List<Object[]> output = sql(
+        "CALL %s.system.rollback_to_timestamp(timestamp => TIMESTAMP '%s', 
namespace => '%s', table => '%s')",
+        catalogName, firstSnapshotTimestamp, tableIdent.namespace(), 
tableIdent.name());
+
+    assertEquals("Procedure output must match",
+        ImmutableList.of(row(secondSnapshot.snapshotId(), 
firstSnapshot.snapshotId())),
+        output);
+
+    assertEquals("Rollback must be successful",
+        ImmutableList.of(row(1L, "a")),
+        sql("SELECT * FROM %s ORDER BY id", tableName));
+  }
+
+  @Test
+  public void testRollbackToTimestampRefreshesRelationCache() throws 
InterruptedException {
+    sql("CREATE TABLE %s (id bigint NOT NULL, data string) USING iceberg", 
tableName);
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    Table table = validationCatalog.loadTable(tableIdent);
+    Snapshot firstSnapshot = table.currentSnapshot();
+    String firstSnapshotTimestamp = LocalDateTime.now().toString();
+
+    Thread.sleep(1000);
+
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    table.refresh();
+
+    Snapshot secondSnapshot = table.currentSnapshot();
+
+    Dataset<Row> query = spark.sql("SELECT * FROM " + tableName + " WHERE id = 
1");
+    query.createOrReplaceTempView("tmp");
+
+    spark.sql("CACHE TABLE tmp");
+
+    assertEquals("View should have expected rows",
+        ImmutableList.of(row(1L, "a"), row(1L, "a")),
+        sql("SELECT * FROM tmp"));
+
+    List<Object[]> output = sql(
+        "CALL %s.system.rollback_to_timestamp(namespace => '%s', table => 
'%s', timestamp => TIMESTAMP '%s')",
+        catalogName, tableIdent.namespace(), tableIdent.name(), 
firstSnapshotTimestamp);
+
+    assertEquals("Procedure output must match",
+        ImmutableList.of(row(secondSnapshot.snapshotId(), 
firstSnapshot.snapshotId())),
+        output);
+
+    assertEquals("View cache must be invalidated",
+        ImmutableList.of(row(1L, "a")),
+        sql("SELECT * FROM tmp"));
+
+    sql("UNCACHE TABLE tmp");
+  }
+
+  @Test
+  public void testRollbackToTimestampWithQuotedIdentifiers() throws 
InterruptedException {
+    sql("CREATE TABLE %s (id bigint NOT NULL, data string) USING iceberg", 
tableName);
+    sql("INSERT INTO TABLE %s VALUES (1, 'a')", tableName);
+
+    Table table = validationCatalog.loadTable(tableIdent);
+    Snapshot firstSnapshot = table.currentSnapshot();
+    String firstSnapshotTimestamp = LocalDateTime.now().toString();

Review comment:
       Minor: Some of the setup could be put into a `@Before` method.




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