chore(datastore): format code in test files

Author: lqiu96

java-datastore/google-cloud-datastore/src/test/java/com/google/cloud/datastore/DatastoreOptionsTest.java

@@ -307,6 +307,7 @@ public void testToBuilder() {
     assertNotEquals(original, newOptions);
     assertNotEquals(original.hashCode(), newOptions.hashCode());
   }
+
   @Test
   public void builtInMetricsExport_isDisabledByDefault() {
     DatastoreOptions defaultOptions =
@@ -330,8 +331,7 @@ public void bothBackendsActive_recorderIsComposite() {
                     .setExportBuiltinMetricsToGoogleCloudMonitoring(true)
                     .build())
             .build();
-    String recorderClassName =
-        options.getMetricsRecorder().getClass().getSimpleName();
+    String recorderClassName = options.getMetricsRecorder().getClass().getSimpleName();
     assertThat(recorderClassName).isEqualTo("CompositeDatastoreMetricsRecorder");
   }
 }

java-datastore/google-cloud-datastore/src/test/java/com/google/cloud/datastore/ITDatastoreBuiltInAndCustomMetrics.java

@@ -21,9 +21,9 @@
 import static org.junit.Assume.assumeNotNull;
 
 import com.google.cloud.TransportOptions;
+import com.google.cloud.datastore.telemetry.TelemetryConstants;
 import com.google.cloud.grpc.GrpcTransportOptions;
 import com.google.cloud.http.HttpTransportOptions;
-import com.google.cloud.datastore.telemetry.TelemetryConstants;
 import io.opentelemetry.api.common.AttributeKey;
 import io.opentelemetry.sdk.OpenTelemetrySdk;
 import io.opentelemetry.sdk.metrics.SdkMeterProvider;
@@ -33,11 +33,6 @@
 import io.opentelemetry.sdk.metrics.data.PointData;
 import io.opentelemetry.sdk.testing.exporter.InMemoryMetricReader;
 import java.util.Arrays;
-import com.google.cloud.monitoring.v3.MetricServiceClient;
-import com.google.monitoring.v3.ListTimeSeriesRequest;
-import com.google.monitoring.v3.TimeInterval;
-import com.google.api.gax.rpc.ApiException;
-import com.google.protobuf.Timestamp;
 import java.util.Collection;
 import java.util.Optional;
 import org.junit.After;
@@ -396,5 +391,4 @@ private static boolean dataContainsStringAttribute(
     String actual = point.getAttributes().get(AttributeKey.stringKey(attributeKey));
     return expectedValue.equals(actual);
   }
-
 }