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https://github.com/tahoe-lafs/tahoe-lafs.git
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117 lines
4.0 KiB
Python
117 lines
4.0 KiB
Python
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import sys
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from coverage import coverage
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from coverage.results import Numbers
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from coverage.summary import SummaryReporter
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from twisted.python import usage
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# this is an adaptation of the code behind "coverage report", modified to
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# display+sortby "lines uncovered", which (IMHO) is more important of a
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# metric than lines covered or percentage covered. Concentrating on the files
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# with the most uncovered lines encourages getting the tree and test suite
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# into a state that provides full line-coverage on all files.
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# much of this code was adapted from coverage/summary.py in the 'coverage'
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# distribution, and is used under their BSD license.
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class Options(usage.Options):
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optParameters = [
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("sortby", "s", "uncovered", "how to sort: uncovered, covered, name"),
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]
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class MyReporter(SummaryReporter):
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def report(self, outfile=None, sortby="uncovered"):
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self.find_code_units(None, ["/System", "/Library", "/usr/lib",
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"support/lib", "src/allmydata/test"])
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# Prepare the formatting strings
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max_name = max([len(cu.name) for cu in self.code_units] + [5])
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fmt_name = "%%- %ds " % max_name
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fmt_err = "%s %s: %s\n"
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header1 = (fmt_name % "" ) + " Statements "
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header2 = (fmt_name % "Name") + " Uncovered Covered"
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fmt_coverage = fmt_name + "%9d %7d "
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if self.branches:
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header1 += " Branches "
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header2 += " Found Excutd"
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fmt_coverage += " %6d %6d"
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header1 += " Percent"
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header2 += " Covered"
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fmt_coverage += " %7d%%"
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if self.show_missing:
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header1 += " "
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header2 += " Missing"
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fmt_coverage += " %s"
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rule = "-" * len(header1) + "\n"
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header1 += "\n"
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header2 += "\n"
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fmt_coverage += "\n"
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if not outfile:
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outfile = sys.stdout
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# Write the header
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outfile.write(header1)
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outfile.write(header2)
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outfile.write(rule)
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total = Numbers()
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total_uncovered = 0
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lines = []
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for cu in self.code_units:
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try:
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analysis = self.coverage._analyze(cu)
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nums = analysis.numbers
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uncovered = nums.n_statements - nums.n_executed
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total_uncovered += uncovered
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args = (cu.name, uncovered, nums.n_executed)
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if self.branches:
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args += (nums.n_branches, nums.n_executed_branches)
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args += (nums.pc_covered,)
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if self.show_missing:
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args += (analysis.missing_formatted(),)
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if sortby == "covered":
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sortkey = nums.pc_covered
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elif sortby == "uncovered":
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sortkey = uncovered
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else:
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sortkey = cu.name
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lines.append((sortkey, fmt_coverage % args))
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total += nums
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except KeyboardInterrupt: # pragma: no cover
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raise
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except:
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if not self.ignore_errors:
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typ, msg = sys.exc_info()[:2]
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outfile.write(fmt_err % (cu.name, typ.__name__, msg))
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lines.sort()
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if sortby in ("uncovered", "covered"):
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lines.reverse()
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for sortkey,line in lines:
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outfile.write(line)
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if total.n_files > 1:
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outfile.write(rule)
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args = ("TOTAL", total_uncovered, total.n_executed)
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if self.branches:
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args += (total.n_branches, total.n_executed_branches)
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args += (total.pc_covered,)
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if self.show_missing:
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args += ("",)
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outfile.write(fmt_coverage % args)
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def report(o):
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c = coverage()
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c.load()
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r = MyReporter(c, show_missing=False, ignore_errors=False)
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r.report(sortby=o['sortby'])
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if __name__ == '__main__':
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o = Options()
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o.parseOptions()
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report(o)
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