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author | mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-07-01 16:55:30 +0000 |
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committer | mame <mame@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-07-01 16:55:30 +0000 |
commit | 5874de95e8df1d051001cf53614c1d245c1ac5ae (patch) | |
tree | 3bd25f3a413a1637a826552181c1568b3bbeb9c0 /lib | |
parent | 498324c5d3cd08c2c306a4f91e3a11b7fda22835 (diff) | |
download | ruby-5874de95e8df1d051001cf53614c1d245c1ac5ae.tar.gz |
* Add coverage measurement constant COVERAGE__. This constant is not
for casual use. Usage: (1) assign {} to COVERAGE__, (2) require or
load Ruby source file, and (3) COVERAGE__["sourcefilepath"] will
return an array whose elements represent number of executions per
line of source code.
* vm_core.h: add field of coverage array to iseq.
* iseq.c (prepare_iseq_build): ditto.
* insns.def (trace): update coverage array.
* parse.y (coverage): create and initialize coverage array.
* compile.h (ADD_TRACE): add trace instruction to update covearge
array.
* thread.c (clear_coverage): delete coverage array when forking.
Otherwise, double count of coverage may occur.
* lib/coverage.rb: sample coverage measurement tool.
* error.c: distinguish explicitly between parse_in_eval and
mild_compile_error.
* load.c: ditto.
* vm_eval.c: ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@17781 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'lib')
-rw-r--r-- | lib/coverage.rb | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/lib/coverage.rb b/lib/coverage.rb new file mode 100644 index 0000000000..f72473ece3 --- /dev/null +++ b/lib/coverage.rb @@ -0,0 +1,57 @@ +COVERAGE__ ||= {} +ext = ENV["COVERUBY_EXT"] || ".cov" +accum = ENV["COVERUBY_ACCUM"] +accum = !accum || accum == "" || !(%w(f n 0).include?(accum[0])) +pwd = Dir.pwd + +at_exit do + Dir.chdir(pwd) do + COVERAGE__.each do |sfile, covs| + cfile = sfile + ext + + writable = proc do |f| + File.writable?(f) || File.writable?(File.dirname(f)) + end + unless writable[cfile] + cfile = cfile.gsub(File.PATH_SEPARATOR, "#") + next unless writable[cfile] + end + + readlines = proc do |f| + File.read(f).force_encoding("ASCII-8BIT").lines.to_a + end + + sources = (readlines[sfile] rescue []) + + pcovs = [] + if accum + pcovs = (readlines[cfile] rescue []).map.with_index do |line, idx| + if line[/^\s*(?:(#####)|(\d+)|-):\s*\d+:(.*)$/n] + cov, line = $1 ? 0 : ($2 ? $2.to_i : nil), $3 + if !sources[idx] || sources[idx].chomp != line.chomp + warn("source file changed, ignoring: `#{ cfile }'") + break [] + end + cov + else + p line + warn("coverage file corrupted, ignoring: #{ cfile }") + break [] + end + end + unless pcovs.empty? || pcovs.size == covs.size + warn("coverage file changed, ignoring: `#{ cfile }'") + pcovs = [] + end + end + + open(cfile, "w") do |out| + covs.zip(sources, pcovs).each_with_index do |(cov, line, pcov), idx| + cov += pcov || 0 if cov + cov = (cov ? (cov == 0 ? "#####" : cov.to_s) : "-").rjust(9) + out.puts("%s:% 5d:%s" % [cov, idx + 1, line]) + end + end + end + end +end |