How many Test-Cases can be written for the calculator
having 0-9 buttons,Add,Equalto buttons.The testcases should
be focussed only on add-functionality but mot GUI.What are
those test-cases?

Answer Posted / priyanka

we can use equivalence class partition and write the test
cases for two conditions i.e.,valid and invalid case.
to check:
1)2+4= (valid)it will cover all the possible combinations
2)+4=(invalid combination)

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