#53 a property for allowing "empty" coverage reports

[Vlad Roubtsov]

Some users want to generate coverage reports without
any runtime coverage data (i.e., with predictable 0%
coverage for all items) in order to survey the current
codebase status (even if they have no tests to get non-
zero coverage).

The current behavior is to error out on such input, on
the assumption that the user has made a mistake in
collecting the runtime coverage data. It is hardcoded in
emmarun and report tools.

It should be easy to add a new property that will allow
this edge case to proceed. Its value should default to
the current behavior.

See https://sourceforge.net/forum/forum.php?
thread_id=1122079&forum_id=373865

[Jeremy Whitlock]

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Just to give you an example of the feature I seek, here is a
link:

http://geronimo.apache.org/modules/axis/clover/

Basically, you get the same report as if you had code
coverage BUT obviously you have 0% covered and your drilled
down code would still be highlighted red. I have time to begin
helping you with this as I have experience developing with ant
and java so just give me a holler if you would like my help.
Also, this feature should be capable of being turned on and
off. Laters, Jeremy

[John Didion]

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I'd like to add my +1. We've been using emma for several
months and the lack of this feature is the only flaw we've
been able to find.