# Re: rcov 0.5.0: code coverage + callsite info, RubyGems, Ran **URL:** \ **Category:** Ruby\ **Created:** [May 30, 2006, 1:42pm UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362 "2006-05-30T13:42:18Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [May 30, 2006, 1:42pm UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/1 "2006-05-30T13:42:18Z")
fr Mauricio: # Source code, additional information, screenshots… available at # [eigenclass.org](http://eigenclass.org/hiki.rb?rcov) # Release information: # [eigenclass.org](http://eigenclass.org/hiki.rb?rcov+0.5.0) rcov is really very useful. Thank you for sharing rcov. # Sample cross-referenced report generated by rcov: # [eigenclass.org](http://eigenclass.org/static/rcov-sample-report-crossref/) uber cool. i think the only thing lacking is a web-based editor that hooks to rcov. Wherein you can click on any source, edit it, rerun rcov analysis again, all just using a browser… # This release is the first to include RubyGems packages: both # a binary one for # Win32 and a platform-independent one for all those with a # compiler, (or a lot # of patience, if willing to run rcov in pure-Ruby mode), so # gem install rcov # should work. tested and runs great in windows and linux. but i would still love to see a pure ruby rcov (even if it may be slow). kind regards -botp ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [May 30, 2006, 2:19pm UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/2 "2006-05-30T14:19:18Z")
On May 30, 2006, at 1:40 PM, Peña, Botp wrote: > > On May 30, 2006, at 11:56 AM, Mauricio F. wrote: > > Sample cross-referenced report generated by rcov: > > [http://eigenclass.org/static/rcov-sample-report-crossref/](http://eigenclass.org/static/rcov-sample-report-crossref/) > > uber cool. > i think the only thing lacking is a web-based editor that hooks to > rcov. Wherein you can click on any source, edit it, rerun rcov > analysis again, all just using a browser… I think a way to open up the file in an external editor would be better. This could be done to work with TextMate easily using its [URL scheme](http://macromates.com/textmate/manual/). I’m not sure about other editors. Maybe an --editor- links option, which accepts one of: TextMate, ?. using\_textmate\_from\_terminal.html#url\_scheme\_html – Daniel ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [May 30, 2006, 7:33pm UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/3 "2006-05-30T19:33:24Z")
On Tue, May 30, 2006 at 08:40:33PM +0900, Peña, Botp wrote: > > Sample cross-referenced report generated by rcov: > > [http://eigenclass.org/static/rcov-sample-report-crossref/](http://eigenclass.org/static/rcov-sample-report-crossref/) > > uber cool. > i think the only thing lacking is a web-based editor that hooks to rcov. > Wherein you can click on any source, edit it, rerun rcov analysis again, all > just using a browser… Attractive at first sight, but on second thought I don’t think anybody would enjoy editing with a browser (unless running an embedded vim or browsing with emacs) 🙂 I’ll think about integration with the user’s editor of choice. > > This release is the first to include RubyGems packages: both a binary one > > for Win32 and a platform-independent one for all those with a compiler, > > (or a lot of patience, if willing to run rcov in pure-Ruby mode), so > > gem install rcov > > should work. > > tested and runs great in windows and linux. > but i would still love to see a pure ruby rcov (even if it may be slow). Actually, rcov _will_ run in pure-Ruby mode if it cannot load rcovrt. If you install it from the tarball with ruby setup.rb --without-ext or using RubyGems and the compilation fails, it’ll fall back to pure-Ruby and give you a warning: batsman@tux-chan:~/src/rcov/examples$ rcov --version bash: rcov: command not found batsman@tux-chan:~/src/rcov/examples$ make=bogus-command-foo gem install rcov Attempting local installation of ‘rcov’ Local gem file not found: rcov\*.gem Attempting remote installation of ‘rcov’ Select which gem to install for your platform (i686-linux) 1. rcov 0.5.0.1 (ruby) 2. rcov 0.5.0.1 (mswin32) 3. Cancel installation > 1 > Building native extensions. This could take a while… > /home/batsman/usr/lib/ruby/1.8/fileutils.rb:243: command not found: > bogus-command-foo > /home/batsman/usr/lib/ruby/1.8/fileutils.rb:243: command not found: > bogus-command-foo install > ruby extconf.rb install rcov > creating Makefile bogus-command-foo bogus-command-foo install Successfully installed rcov-0.5.0.1 Installing RDoc documentation for rcov-0.5.0.1… batsman@tux-chan:~/src/rcov/examples$ rcov --version rcov 0.5.0 2006-05-30 batsman@tux-chan:~/src/rcov/examples$ rcov --text-coverage --no-html –no-color a.rb Since the rcovrt extension couldn’t be loaded, rcov will run in pure-Ruby mode, which is about two orders of magnitude slower. If you’re on win32, you can find a pre-built extension (usable with recent One Click Installer and mswin32 builds) at [eigenclass.org](http://eigenclass.org/hiki.rb?rcov) . # blergh yep Done: 56 # a.rb srand(0) c = 0 d = 1 10.times do |i| if rand % (i + 10) c += i d += 1 end end puts “blergh” if c \> 4\*d # stuff puts “yep” ## else ## puts “nope” ## # more stuff ## end puts “Done: #{c+d}” ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [June 1, 2006, 1:13am UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/4 "2006-06-01T01:13:56Z")
On May 31, 2006, at 6:16 PM, Chris McGrath wrote: > > > > himself) > Maybe this is what you mean (I don’t know ZenTest), but how hot would > it be if someone made an eclipse plugin that did it as a continual > background task (like, did it per file every time you saved) and > popped up little “Attention” icons next to files and underlined the > parts of code that weren’t getting hit by unit testing. _drools_ But in the mean time rcov is frickin hot! -Mat ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [June 1, 2006, 12:19am UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/5 "2006-06-01T00:19:05Z")
On 30 May 2006, at 13:40, Peña, Botp wrote: > fr Mauricio: > > # Source code, additional information, screenshots… available at > > # [eigenclass.org](http://eigenclass.org/hiki.rb?rcov) > > # Release information: > > # [eigenclass.org](http://eigenclass.org/hiki.rb?rcov+0.5.0) > > rcov is really very useful. > Thank you for sharing rcov. Seconded! I love it. Thank you bery much. My candidate for the “I want a Pony awards is” Some king of mashup between rcov, rake and ZenTest. I’d like something so that running tests became something akin to making a build in a static language, rcov would tell autotest what tests it needed to re-run based on the profiling information and whine heavily when you have code that’s called isn’t under test. /me hopes the lazyweb will provide! (and wishes he had proper time himself) Chris ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [June 1, 2006, 3:28pm UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/6 "2006-06-01T15:28:36Z")
On Jun 1, 2006, at 4:56 AM, Mauricio F. wrote: > (in /home/batsman/src/rcov/head) > 39 tests, 415 assertions, 0 failures, 0 errors > if (!is\_code?(lastidx) || /^ **END** $/ =~ @lines[-1]) && ! > line = @lines[i] > > It’s in my repository, and it will be in rcov 0.6.0. Bravo! What’s your encore gonna be? I’m no expert in eclipse plugins. And actually the editor is a little hard to plug from what I understand. But if there’s a way to get those !! lines in a lightweight machine readable format, it shouldn’t be _too_ hard to implement the functionality I was talking about. -Mat ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [June 1, 2006, 10:58am UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/7 "2006-06-01T10:58:37Z")
On Thu, Jun 01, 2006 at 08:10:47AM +0900, Mat S. wrote: > Maybe this is what you mean (I don’t know ZenTest), but how hot would > it be if someone made an eclipse plugin that did it as a continual > background task (like, did it per file every time you saved) and > popped up little “Attention” icons next to files and underlined the > parts of code that weren’t getting hit by unit testing. _drools_ I don’t know about eclipse, but I implemented this yesterday: $ rake rcov RCOVOPTS="–save" […] /me edits lib/rcov.rb … some time later: $ rake rcov RCOVOPTS="–text-coverage-diff --no-color" (in /home/batsman/src/rcov/head) rm -r coverage /home/batsman/usr/bin/ruby -Ilib:ext/rcovrt “bin/rcov” –text-coverage-diff --no-color -o “coverage” “test/test\_CodeCoverageAnalyzer.rb” “test/test\_FileStatistics.rb” “test/test\_CallSiteAnalyzer.rb” Loaded suite bin/rcov Started … Finished in 1.163085 seconds. 39 tests, 415 assertions, 0 failures, 0 errors ================================================================================ !!! Uncovered code introduced in lib/rcov.rb ### lib/rcov.rb:207 ``` def precompute_coverage(comments_run_by_default = true) changed = false lastidx = lines.size - 1 if (!is_code?(lastidx) || /^ __END__ $/ =~ @lines[-1]) && ``` !@coverage[lastidx] !! # mark the last block of comments !! @coverage[lastidx] ||= :inferred !! (lastidx-1).downto(0) do |i| !! break if is\_code?(i) !! @coverage[i] ||= :inferred !! end !! end (0…lines.size).each do |i| next if @coverage[i] line = @lines[i] It’s in my repository, and it will be in rcov 0.6.0. ---
**Author:** ![PeSSSSaS\_Botp](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/ecd19e/32.png) [@PeSSSSaS\_Botp](https://www.ruby-forum.com/u/PeSSSSaS_Botp)\ **Post date:** [June 1, 2006, 7:44pm UTC](https://www.ruby-forum.com/t/re-rcov-0-5-0-code-coverage-callsite-info-rubygems-ran/95362/8 "2006-06-01T19:44:45Z")
On Thu, Jun 01, 2006 at 10:25:11PM +0900, Mat S. wrote: > > ========== > > !!! Uncovered code introduced in lib/rcov.rb > > > > ### lib/rcov.rb:207 […] > > It’s in my repository, and it will be in rcov 0.6.0. > > Bravo! What’s your encore gonna be? _chuckle_ You just gave me one idea. I’ve got a piece of paper on my desk where I’ve written about a dozen things I want to implement (I’ve crossed out 4 so far); I add a couple every once in a while. I’m keeping them more or less secret for the time being, but I’ll send a snapshot (tarball and/or RubyGems packages) of rcov’s HEAD branch with the new stuff to whoever reports a new bug in rcov 🙂 (Reports for bugs I’ve already fixed in HEAD will be requited with a somewhat less fresh snapshot 😉 > I’m no expert in eclipse plugins. And actually the editor is a > little hard to plug from what I understand. But if there’s a way to > get those !! lines in a lightweight machine readable format, it > shouldn’t be _too_ hard to implement the functionality I was talking > about. I wrote --text-coverage-diff with that in mind (although not exactly the way you described it). Actually, I was planning some vim integration using errorformat…