public void PipelineDefinitionCanBeBuild()
{
var selectArguments = "id, test.subtest, product.price.tax as tax";
JsonPipelineStageDefinition <BsonDocument, BsonDocument> stage = null;
Assert.That(() => stage = ProjectionDefinitionBuilder.Build <BsonDocument>(selectArguments), Throws.Nothing);
Assert.That(stage, Is.Not.Null);
Assert.That(stage.Json, Is.EqualTo("{ $project : { \"id\" : true, \"test_subtest\" : \"$test.subtest\", \"tax\" : \"$product.price.tax\" } }"));
}