There are many instances where testing does not allow one to gain a full picture of a child. I do believe that cognitive testing is important. I think that it allows professionals to determine where to start in regards to materials and activities that are appropriate for a child. But I don't believe that children are just a score. I think that their personalities and interests should also be considered. There are honestly so many protocols for various aspects of development and other areas, it can be difficult to decide which is right for any particular child.
Much of the information that I found for Brazil involved the overall testing within their educational systems. This is much like state testing in the United States. In Brazil, these tests are given every two years and helps to disseminate funds for particular areas of education. These tests are also used as incentives to help teachers make their students better learners. According to Bonamino and Sousa (2012), these tests tend to measure certain cognitive elements in regards to math and reading. It doesn't allow a total view of a child or the school that the child is taught in.
I personally think these tests are very limiting. There are more important things in education than testing results.
Bonamino, A., Sousa, B. 2012. Three generations of assessments of basic education in Brazil: interfaces with the curriculum in/of the school. Retrieved from http://www.scielo.br/scielo.php?pid=s1517-97022012000200007&script=sci_arttext&tlng=en
