Code Coverage Metrics against Legacy code vs New code

[Amit Singh]

Our company analyzing various code coverage tools, one of major deciding factor is getting metrics for Code Coverage against new code written after our tool adoption.

It  is 4-5 year old application we want to measure code coverage % for new code. Is there any report which can help us to get such data ?

[Grzegorz Lewandowski]

Clover can't detect changes in a code and measure coverage only for new parts. I don't think any code coverage tool can do that.

However, I think you can use two Clover features which may satisfy your demand:
* Include/exclude sources and measure coverage only for new/modern modules, packages files

* Generate historical report and analyze coverage trends. If you assume new code should be covered by tests then when the overall coverage stats should go up.

Cheers,

Grzegorz