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JdbcCommitStatsTest.java
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JdbcCommitStatsTest.java
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/*
* Copyright 2020 Google LLC
*
* 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 com.google.cloud.spanner.jdbc;
import static com.google.common.truth.Truth.assertThat;
import com.google.cloud.spanner.CommitResponse;
import com.google.cloud.spanner.Mutation;
import com.google.cloud.spanner.connection.AbstractMockServerTest;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
@RunWith(JUnit4.class)
public class JdbcCommitStatsTest extends AbstractMockServerTest {
@Test
public void testDefaultReturnCommitStats() throws SQLException {
try (java.sql.Connection connection = createJdbcConnection()) {
try (java.sql.ResultSet rs =
connection.createStatement().executeQuery("SHOW VARIABLE RETURN_COMMIT_STATS")) {
assertThat(rs.next()).isTrue();
assertThat(rs.getBoolean("RETURN_COMMIT_STATS")).isFalse();
assertThat(rs.next()).isFalse();
}
}
}
@Test
public void testReturnCommitStatsInConnectionUrl() throws SQLException {
try (java.sql.Connection connection =
DriverManager.getConnection(
String.format("jdbc:%s;returnCommitStats=true", getBaseUrl()))) {
try (java.sql.ResultSet rs =
connection.createStatement().executeQuery("SHOW VARIABLE RETURN_COMMIT_STATS")) {
assertThat(rs.next()).isTrue();
assertThat(rs.getBoolean("RETURN_COMMIT_STATS")).isTrue();
assertThat(rs.next()).isFalse();
}
}
}
@Test
public void testSetReturnCommitStats() throws SQLException {
try (java.sql.Connection connection = createJdbcConnection()) {
connection.createStatement().execute("SET RETURN_COMMIT_STATS=true");
try (java.sql.ResultSet rs =
connection.createStatement().executeQuery("SHOW VARIABLE RETURN_COMMIT_STATS")) {
assertThat(rs.next()).isTrue();
assertThat(rs.getBoolean("RETURN_COMMIT_STATS")).isTrue();
assertThat(rs.next()).isFalse();
}
connection.createStatement().execute("SET RETURN_COMMIT_STATS=false");
try (java.sql.ResultSet rs =
connection.createStatement().executeQuery("SHOW VARIABLE RETURN_COMMIT_STATS")) {
assertThat(rs.next()).isTrue();
assertThat(rs.getBoolean("RETURN_COMMIT_STATS")).isFalse();
assertThat(rs.next()).isFalse();
}
}
}
@Test
public void testSetAndUseReturnCommitStats() throws SQLException {
try (CloudSpannerJdbcConnection connection =
createJdbcConnection().unwrap(CloudSpannerJdbcConnection.class)) {
connection.setReturnCommitStats(true);
connection.bufferedWrite(Mutation.newInsertBuilder("FOO").set("ID").to(1L).build());
connection.commit();
CommitResponse response = connection.getCommitResponse();
assertThat(response).isNotNull();
assertThat(response.getCommitStats()).isNotNull();
assertThat(response.getCommitStats().getMutationCount()).isAtLeast(1L);
assertThat(response.getCommitStats().getOverloadDelay()).isNotNull();
}
}
@Test
public void testSetAndUseReturnCommitStatsUsingSql() throws SQLException {
try (java.sql.Connection connection = createJdbcConnection()) {
connection.createStatement().execute("SET RETURN_COMMIT_STATS=true");
// Use a Mutation as the mock server only returns a non-zero mutation count for mutations, and
// not for DML statements.
connection
.unwrap(CloudSpannerJdbcConnection.class)
.bufferedWrite(Mutation.newInsertBuilder("FOO").set("ID").to(1L).build());
connection.commit();
try (ResultSet rs =
connection.createStatement().executeQuery("SHOW VARIABLE COMMIT_RESPONSE")) {
assertThat(rs.next()).isTrue();
assertThat(rs.getTimestamp("COMMIT_TIMESTAMP")).isNotNull();
assertThat(rs.getLong("MUTATION_COUNT")).isAtLeast(1L);
assertThat(rs.getString("OVERLOAD_DELAY")).isNotNull();
assertThat(rs.next()).isFalse();
}
}
}
}