The test will be evaluated based on the questions you managed to answer before the time expired. Note that even after the test time ends, you must finalize it. If the time runs out while you are taking the test, you will see the option to finalize, and you must confirm the submission. (If you fail to do so, the test will be considered abandoned.)
If for some reason you cannot complete the test and close the browser before finishing, once the time expires, the test will also be considered abandoned.