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#!/usr/bin/env python
import sys
from coverage import coverage
from coverage.results import Numbers
from coverage.summary import SummaryReporter
from twisted.python import usage
# this is an adaptation of the code behind "coverage report", modified to
# display+sortby "lines uncovered", which (IMHO) is more important of a
# metric than lines covered or percentage covered. Concentrating on the files
# with the most uncovered lines encourages getting the tree and test suite
# into a state that provides full line-coverage on all files.
# much of this code was adapted from coverage/summary.py in the 'coverage'
# distribution, and is used under their BSD license.
class Options(usage.Options):
optParameters = [
("sortby", "s", "uncovered", "how to sort: uncovered, covered, name"),
]
class MyReporter(SummaryReporter):
def report(self, outfile=None, sortby="uncovered"):
self.find_code_units(
None, ["/System", "/Library", "/usr/lib", "buildbot/test", "simplejson"]
)
# Prepare the formatting strings
max_name = max([len(cu.name) for cu in self.code_units] + [5])
fmt_name = f"%- {max_name}s "
fmt_err = "%s %s: %s\n"
header1 = (fmt_name % "") + " Statements "
header2 = (fmt_name % "Name") + " Uncovered Covered"
fmt_coverage = fmt_name + "%9d %7d "
if self.branches:
header1 += " Branches "
header2 += " Found Excutd"
fmt_coverage += " %6d %6d"
header1 += " Percent"
header2 += " Covered"
fmt_coverage += " %7d%%"
if self.show_missing:
header1 += " "
header2 += " Missing"
fmt_coverage += " %s"
rule = "-" * len(header1) + "\n"
header1 += "\n"
header2 += "\n"
fmt_coverage += "\n"
if not outfile:
outfile = sys.stdout
# Write the header
outfile.write(header1)
outfile.write(header2)
outfile.write(rule)
total = Numbers()
total_uncovered = 0
lines = []
for cu in self.code_units:
try:
analysis = self.coverage._analyze(cu)
nums = analysis.numbers
uncovered = nums.n_statements - nums.n_executed
total_uncovered += uncovered
args = (cu.name, uncovered, nums.n_executed)
if self.branches:
args += (nums.n_branches, nums.n_executed_branches)
args += (nums.pc_covered,)
if self.show_missing:
args += (analysis.missing_formatted(),)
if sortby == "covered":
sortkey = nums.pc_covered
elif sortby == "uncovered":
sortkey = uncovered
else:
sortkey = cu.name
lines.append((sortkey, fmt_coverage % args))
total += nums
except Exception:
if not self.ignore_errors:
typ, msg = sys.exc_info()[:2]
outfile.write(fmt_err % (cu.name, typ.__name__, msg))
lines.sort()
if sortby in ("uncovered", "covered"):
lines.reverse()
for sortkey, line in lines:
outfile.write(line)
if total.n_files > 1:
outfile.write(rule)
args = ("TOTAL", total_uncovered, total.n_executed)
if self.branches:
args += (total.n_branches, total.n_executed_branches)
args += (total.pc_covered,)
if self.show_missing:
args += ("",)
outfile.write(fmt_coverage % args)
def report(o):
c = coverage()
c.load()
r = MyReporter(c, show_missing=False, ignore_errors=False)
r.report(sortby=o['sortby'])
if __name__ == '__main__':
o = Options()
o.parseOptions()
report(o)
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