Should write test codes while application codes

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©iCARE Co., Ltd All rights reserved The benefits of Writing test codes while writing application codes 12 ● Aware badness of design of the application code ○ If you would think difﬁcult to write test code, the design of the application code might be bad ● Avoid writing wrong test code ○ if you would write test code at ﬁrst, you could avoid to write passing test code with wrong application code

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©iCARE Co., Ltd All rights reserved The benefits of Writing test codes while writing application codes 13 ● Aware badness of design of the application code ○ If you would think difﬁcult to write test code, the design of the application code might be bad ● Avoid writing wrong test code ○ if you would write test code at ﬁrst, you could avoid to write passing test code with wrong application code

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©iCARE Co., Ltd All rights reserved The benefits of Writing test codes while writing application codes 14 ● Aware badness of design of the application code ○ If you would think difﬁcult to write test code, the design of the application code might be bad ● Avoid writing wrong test code ○ if you would write test code at ﬁrst, you could avoid to write passing test code with wrong application code