Coverage testing tool for The Go Programming Language (work-in-progress)
go get github.com/axw/gocov/gocov
There are currently three gocov commands: test, report, annotate.
gocov test
Running gocov test <package> will, for the specified package,
instrument all imported packages not part of the standard library,
and run "go test". Upon completion, coverage data will be emitted
in the form of a JSON document.
Packages will be recursively checked for imports, and those
packages will also be instrumented. If you wish to exclude a
package from instrumentation, you can specify an optional exclude
flag, e.g. gocov test -exclude comma,separated,packages.
gocov report
Running gocov report <coverage.json> will generate a textual
report from the coverage data output by gocov test. It is
assumed that the source code has not changed in between.
gocov annotate
Running gocov annotate <coverage.json> <package[.receiver].function>
will generate a source listing of the specified function, annotating
it with coverage information, such as which lines have been missed.