/
TestDeallocateTask.java
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/
TestDeallocateTask.java
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/*
* Licensed 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 io.prestosql.execution;
import com.google.common.collect.ImmutableSet;
import io.prestosql.Session;
import io.prestosql.execution.warnings.WarningCollector;
import io.prestosql.metadata.MetadataManager;
import io.prestosql.security.AccessControl;
import io.prestosql.security.AccessControlManager;
import io.prestosql.security.AllowAllAccessControl;
import io.prestosql.spi.PrestoException;
import io.prestosql.spi.resourcegroups.ResourceGroupId;
import io.prestosql.sql.tree.Deallocate;
import io.prestosql.sql.tree.Identifier;
import io.prestosql.transaction.TransactionManager;
import org.testng.annotations.AfterClass;
import org.testng.annotations.Test;
import java.net.URI;
import java.util.Optional;
import java.util.Set;
import java.util.concurrent.ExecutorService;
import static io.airlift.concurrent.Threads.daemonThreadsNamed;
import static io.prestosql.SessionTestUtils.TEST_SESSION;
import static io.prestosql.metadata.MetadataManager.createTestMetadataManager;
import static io.prestosql.spi.StandardErrorCode.NOT_FOUND;
import static io.prestosql.testing.TestingSession.testSessionBuilder;
import static io.prestosql.transaction.InMemoryTransactionManager.createTestTransactionManager;
import static java.util.Collections.emptyList;
import static java.util.concurrent.Executors.newCachedThreadPool;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.fail;
public class TestDeallocateTask
{
private final MetadataManager metadata = createTestMetadataManager();
private final ExecutorService executor = newCachedThreadPool(daemonThreadsNamed("test-%s"));
@AfterClass(alwaysRun = true)
public void tearDown()
{
executor.shutdownNow();
}
@Test
public void testDeallocate()
{
Session session = testSessionBuilder()
.addPreparedStatement("my_query", "SELECT bar, baz FROM foo")
.build();
Set<String> statements = executeDeallocate("my_query", "DEALLOCATE PREPARE my_query", session);
assertEquals(statements, ImmutableSet.of("my_query"));
}
@Test
public void testDeallocateNoSuchStatement()
{
try {
executeDeallocate("my_query", "DEALLOCATE PREPARE my_query", TEST_SESSION);
fail("expected exception");
}
catch (PrestoException e) {
assertEquals(e.getErrorCode(), NOT_FOUND.toErrorCode());
assertEquals(e.getMessage(), "Prepared statement not found: my_query");
}
}
private Set<String> executeDeallocate(String statementName, String sqlString, Session session)
{
TransactionManager transactionManager = createTestTransactionManager();
AccessControl accessControl = new AccessControlManager(transactionManager);
QueryStateMachine stateMachine = QueryStateMachine.begin(
sqlString,
Optional.empty(),
session,
URI.create("fake://uri"),
new ResourceGroupId("test"),
false,
transactionManager,
accessControl,
executor,
metadata,
WarningCollector.NOOP);
Deallocate deallocate = new Deallocate(new Identifier(statementName));
new DeallocateTask().execute(deallocate, transactionManager, metadata, new AllowAllAccessControl(), stateMachine, emptyList());
return stateMachine.getDeallocatedPreparedStatements();
}
}