Test change streams against sharded clusters as well as replica sets

Author: jyemin

driver-core/src/test/functional/com/mongodb/operation/ChangeStreamOperationSpecification.groovy

@@ -38,12 +38,12 @@ import org.bson.codecs.DocumentCodec
 import org.bson.codecs.ValueCodecProvider
 import spock.lang.IgnoreIf
 
-import static com.mongodb.ClusterFixture.isDiscoverableReplicaSet
+import static com.mongodb.ClusterFixture.isStandalone
 import static com.mongodb.ClusterFixture.serverVersionAtLeast
 import static java.util.concurrent.TimeUnit.MILLISECONDS
 import static org.bson.codecs.configuration.CodecRegistries.fromProviders
 
-@IgnoreIf({ !(serverVersionAtLeast(3, 5) && isDiscoverableReplicaSet()) })
+@IgnoreIf({ !(serverVersionAtLeast(3, 5) && !isStandalone()) })
 class ChangeStreamOperationSpecification extends OperationFunctionalSpecification {
 
     def 'should have the correct defaults'() {