test: set custom retry settings based on gapic config

@@ -24,8 +24,6 @@
 import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
 import com.google.api.gax.paging.Page;
 import com.google.api.gax.retrying.RetrySettings;
-import com.google.api.gax.rpc.StatusCode;
-import com.google.api.gax.rpc.StatusCode.Code;
 import com.google.api.gax.rpc.UnaryCallSettings;
 import com.google.cloud.Timestamp;
 import com.google.cloud.spanner.Backup;
@@ -93,15 +91,24 @@ public SpannerOptions spannerOptions() {
 OperationTimedPollAlgorithm pollingAlgorithm =
 OperationTimedPollAlgorithm.create(
 RetrySettings.newBuilder()
-.setInitialRpcTimeout(Duration.ofHours(48L))
-.setMaxRpcTimeout(Duration.ofHours(48L))
+.setInitialRpcTimeout(Duration.ofSeconds(60L))
+.setMaxRpcTimeout(Duration.ofSeconds(600L))
+.setInitialRetryDelay(Duration.ofSeconds(20L))
+.setMaxRetryDelay(Duration.ofSeconds(45L))
+.setRetryDelayMultiplier(1.5)
+.setRpcTimeoutMultiplier(1.5)
 .setTotalTimeout(Duration.ofHours(48L))
 .build());
 
 RetrySettings retrySettings =
 RetrySettings.newBuilder()
-.setInitialRpcTimeout(Duration.ofHours(48L))
-.setMaxRpcTimeout(Duration.ofHours(48L))
+.setInitialRpcTimeout(Duration.ofSeconds(60L))
+.setMaxRpcTimeout(Duration.ofSeconds(600L))
+.setInitialRetryDelay(Duration.ofSeconds(20L))
+.setMaxRetryDelay(Duration.ofSeconds(45L))
+.setRetryDelayMultiplier(1.5)
+.setRpcTimeoutMultiplier(1.5)
+.setTotalTimeout(Duration.ofHours(48L))
 .build();
 builder
 .getDatabaseAdminStubSettingsBuilder()
@@ -154,6 +161,8 @@ protected void initializeConfig()
 super.initializeConfig();
 }
 };
+// @ClassRule public static IntegrationTestEnv env = new IntegrationTestEnv();
+
 
 @Rule public ExpectedException expectedException = ExpectedException.none();
 private DatabaseAdminClient dbAdminClient;
@@ -302,13 +311,9 @@ public void testBackups() throws InterruptedException, ExecutionException {
 expireTime);
 backups.add(backupId1);
 backups.add(backupId2);
-// Wait to prevent the test from exceeding the limit of administrative requests.
-Thread.sleep(60_000L);
 
 // Execute metadata tests as part of this integration test to reduce total execution time.
 testMetadata(op1, op2, backupId1, backupId2, db1, db2);
-// Wait to prevent the test from exceeding the limit of administrative requests.
-Thread.sleep(60_000L);
 
 // Ensure both backups have been created before we proceed.
 Backup backup1 = op1.get();
@@ -402,15 +407,6 @@ private void testMetadata(
 Database db2)
 throws InterruptedException, ExecutionException {
 
-logger.info("Getting initial operation 1 status");
-StatusCode status1 = op1.getInitialFuture().get().getErrorCode();
-Code code1 = status1 == null ? Code.OK : status1.getCode();
-assertThat(code1).isEqualTo(Code.OK);
-logger.info("Getting initial operation 2 status");
-StatusCode status2 = op2.getInitialFuture().get().getErrorCode();
-Code code2 = status2 == null ? Code.OK : status2.getCode();
-assertThat(code2).isEqualTo(Code.OK);
-
 logger.info("Getting operation metadata 1");
 CreateBackupMetadata metadata1 = op1.getMetadata().get();
 logger.info("Getting operation metadata 2");