Definitely test again next year. She's very close to cut off. Remember that she's young & will mature a lot over the year (I think there's a huge gain from grade 2 to 3, from literature about cortex thickening or something like that, reading proficiency and the steep learning that happens when that happens, etc.), now has experience about what to expect, and she'll be fine.
You may have done this with her for the first test, but re-do it again before the next one--review strategy. That is, answer ALL questions, even if you don't know, take your time (I hated to see my son finish so early when he could have checked over stuff). Try to narrow done to 2 possible answers. If she's bored in grade 3 before testing, afterschool with some advanced concepts in math and vocabulary.