Using C language, calculate sum of 2 matrices and then unit test them.

For example,

matrix 1 =

{{1,2,3}

{4,5,6}

{7,8,9}}

matrix 2 =

{{1,2,3}

{4,5,6}

{7,8,9}}

actual output =

{{2,4,6}

{8,10,12}

{14.16.18}}

expected output =

{{2,4,6}

{8,10,12}

{14.16.18}}

if actual output is equal to expected output,

Test Passed

or else

Test Failed