public void GetOperationTypeByRootType_Subscription()
{
// arrange
const string schemaName = "foo";
DocumentNode schema = Utf8GraphQLParser.Parse(
FileResource.Open("SchemaInfoTests_Schema.graphql"));
var schemaInfo = new SchemaInfo(schemaName, schema);
// act
bool success = schemaInfo.TryGetOperationType(
schemaInfo.SubscriptionType,
out OperationType operationType);
// assert
Assert.True(success);
Assert.Equal(OperationType.Subscription, operationType);
}