PgLastStatementSampleIT.java

/*
 * Copyright 2025 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.example.spanner;

import static com.example.spanner.SampleRunner.runSample;
import static com.google.common.truth.Truth.assertThat;

import com.google.api.gax.longrunning.OperationFuture;
import com.google.cloud.spanner.DatabaseClient;
import com.google.cloud.spanner.DatabaseId;
import com.google.cloud.spanner.Dialect;
import com.google.cloud.spanner.KeySet;
import com.google.cloud.spanner.Mutation;
import com.google.common.collect.ImmutableList;
import com.google.spanner.admin.database.v1.UpdateDatabaseDdlMetadata;
import java.util.Arrays;
import java.util.Collections;
import java.util.concurrent.TimeUnit;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;

/** Integration tests for {@link PgLastStatementSample} */
@RunWith(JUnit4.class)
public class PgLastStatementSampleIT extends SampleTestBase {

    private static DatabaseId databaseId;

    @BeforeClass
    public static void createTestDatabase() throws Exception {
        final String database = idGenerator.generateDatabaseId();
        databaseAdminClient
                .createDatabase(
                        databaseAdminClient
                                .newDatabaseBuilder(DatabaseId.of(projectId, instanceId, database))
                                .setDialect(Dialect.POSTGRESQL)
                                .build(),
                        Collections.emptyList())
                .get(10, TimeUnit.MINUTES);
        final OperationFuture<Void, UpdateDatabaseDdlMetadata> updateOperation =
                databaseAdminClient.updateDatabaseDdl(
                        instanceId,
                        database,
                        ImmutableList.of(
                                "CREATE TABLE Singers ("
                                        + "  SingerId   bigint NOT NULL,"
                                        + "  FirstName  character varying(1024),"
                                        + "  LastName   character varying(1024),"
                                        + "  PRIMARY KEY (SingerId)"
                                        + ")"),
                        null);
        updateOperation.get(10, TimeUnit.MINUTES);
        databaseId = DatabaseId.of(projectId, instanceId, database);
    }

    @Test
    public void testSetLastStatementOptionSample() throws Exception {
        final DatabaseClient client = spanner.getDatabaseClient(databaseId);
        String out =
                runSample(
                        () -> PgLastStatementSample.insertAndUpdateUsingLastStatement(client));
        assertThat(out).contains("New singer inserted.");
        assertThat(out).contains("Singer last name updated.");
    }
}