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+[[!tag patch]]
+[[!template id=gitbranch branch=smcv/coverage author="[[smcv]]"]]
+
+It would be nice for `make coverage` (or something) to produce a HTML
+test-coverage report. I found this very useful for test-driven development of
+[[plugins/contrib/trail]].
+
+Limitations of the current branch, which uses [[!cpan Devel::Cover]]:
+
+* Some tests use `./blib` and some use `.` so coverage gets split between
+  the two copies of each module; not a problem for [[plugins/contrib/trail]]
+  which only has one test.
+
+> How annoying. I think in at least some cases there is reason to use
+> `./blib` -- perhaps everything that users `.` should be changed to use
+> it. --[[Joey]]
+
+* The [[plugins/git]] and [[plugins/mercurial]] plugins want to `chdir`,
+  and so does [[!cpan Devel::Cover]], so they fight. For now, those tests
+  are disabled under `make coverage`.
+
+--[[smcv]]
+
+> [[merged|done]] --[[Joey]]