/
SamplesMockServerTest.java
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SamplesMockServerTest.java
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/*
* Copyright 2023 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;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThrows;
import com.google.api.gax.retrying.RetrySettings;
import com.google.api.gax.rpc.StatusCode;
import com.google.cloud.NoCredentials;
import com.google.cloud.spanner.MockSpannerServiceImpl.StatementResult;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.junit.runners.JUnit4;
import org.threeten.bp.Duration;
/** Tests for samples that use an in-mem mock server instead of running on real Cloud Spanner. */
@RunWith(JUnit4.class)
public class SamplesMockServerTest extends AbstractMockServerTest {
@Test
public void testSampleRetrySettings() {
String sql =
"INSERT INTO Singers (SingerId, FirstName, LastName)\n"
+ "VALUES (20, 'George', 'Washington')";
mockSpanner.putStatementResult(StatementResult.update(Statement.of(sql), 1L));
SpannerOptions.Builder builder =
SpannerOptions.newBuilder()
.setProjectId("p")
.setCredentials(NoCredentials.getInstance())
.setChannelProvider(channelProvider);
// Set a timeout value for the ExecuteSql RPC that is so low that it will always be triggered.
// This should cause the RPC to fail with a DEADLINE_EXCEEDED error.
builder
.getSpannerStubSettingsBuilder()
.executeSqlSettings()
.setRetryableCodes(StatusCode.Code.UNAVAILABLE)
.setRetrySettings(
RetrySettings.newBuilder()
.setInitialRetryDelay(Duration.ofMillis(500))
.setMaxRetryDelay(Duration.ofSeconds(16))
.setRetryDelayMultiplier(1.5)
.setInitialRpcTimeout(Duration.ofNanos(1L))
.setMaxRpcTimeout(Duration.ofNanos(1L))
.setRpcTimeoutMultiplier(1.0)
.setTotalTimeout(Duration.ofNanos(1L))
.build());
// Create a Spanner client using the custom retry and timeout settings.
try (Spanner spanner = builder.build().getService()) {
DatabaseClient client = spanner.getDatabaseClient(DatabaseId.of("p", "i", "d"));
SpannerException exception =
assertThrows(
SpannerException.class,
() ->
client
.readWriteTransaction()
.run(transaction -> transaction.executeUpdate(Statement.of(sql))));
assertEquals(ErrorCode.DEADLINE_EXCEEDED, exception.getErrorCode());
}
}
}