I want to say that I have a philosophy test today: きょうは哲学のテストにする is that OK?
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2017-05-25T03:35:20.437
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2017-05-25T05:45:15.107
2017-05-25T04:34:52.080
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question
grammar english-to-japanese
philosophy's test
Assuming you are a student, I would use the very 受{う}ける or if it is formal
受験{じゅけん}

> きょうは哲学のテストを受ける。
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2017-05-25T04:35:01.470
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2017-05-25T04:35:01.470
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answer
You can write:

今日は哲学のテストがあります。
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2017-05-25T04:39:32.167
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2017-05-25T04:39:32.167
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If you are a student of a school, 哲学の「テスト」が「ある」 is used commonly when the test
will be done there, but 哲学の「試験」を「受ける」 is used to get something like a
certification or an entrance permit.
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2017-05-25T05:45:15.107
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2017-05-25T05:45:15.107
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answer