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# Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0
# For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt
"""XML reporting for coverage.py"""
import os
import os.path
import sys
import time
import xml.dom.minidom
from coverage import env
from coverage import __url__, __version__, files
from coverage.backward import iitems
from coverage.misc import isolate_module
from coverage.report import Reporter
os = isolate_module(os)
DTD_URL = (
'https://raw.githubusercontent.com/cobertura/web/'
'f0366e5e2cf18f111cbd61fc34ef720a6584ba02'
'/htdocs/xml/coverage-03.dtd'
)
def rate(hit, num):
"""Return the fraction of `hit`/`num`, as a string."""
if num == 0:
return "1"
else:
return "%.4g" % (float(hit) / num)
class XmlReporter(Reporter):
"""A reporter for writing Cobertura-style XML coverage results."""
def __init__(self, coverage, config):
super(XmlReporter, self).__init__(coverage, config)
self.source_paths = set()
if config.source:
for src in config.source:
if os.path.exists(src):
self.source_paths.add(files.canonical_filename(src))
self.packages = {}
self.xml_out = None
self.has_arcs = coverage.data.has_arcs()
def report(self, morfs, outfile=None):
"""Generate a Cobertura-compatible XML report for `morfs`.
`morfs` is a list of modules or file names.
`outfile` is a file object to write the XML to.
"""
# Initial setup.
outfile = outfile or sys.stdout
# Create the DOM that will store the data.
impl = xml.dom.minidom.getDOMImplementation()
self.xml_out = impl.createDocument(None, "coverage", None)
# Write header stuff.
xcoverage = self.xml_out.documentElement
xcoverage.setAttribute("version", __version__)
xcoverage.setAttribute("timestamp", str(int(time.time()*1000)))
xcoverage.appendChild(self.xml_out.createComment(
" Generated by coverage.py: %s " % __url__
))
xcoverage.appendChild(self.xml_out.createComment(" Based on %s " % DTD_URL))
# Call xml_file for each file in the data.
self.report_files(self.xml_file, morfs)
xsources = self.xml_out.createElement("sources")
xcoverage.appendChild(xsources)
# Populate the XML DOM with the source info.
for path in sorted(self.source_paths):
xsource = self.xml_out.createElement("source")
xsources.appendChild(xsource)
txt = self.xml_out.createTextNode(path)
xsource.appendChild(txt)
lnum_tot, lhits_tot = 0, 0
bnum_tot, bhits_tot = 0, 0
xpackages = self.xml_out.createElement("packages")
xcoverage.appendChild(xpackages)
# Populate the XML DOM with the package info.
for pkg_name, pkg_data in sorted(iitems(self.packages)):
class_elts, lhits, lnum, bhits, bnum = pkg_data
xpackage = self.xml_out.createElement("package")
xpackages.appendChild(xpackage)
xclasses = self.xml_out.createElement("classes")
xpackage.appendChild(xclasses)
for _, class_elt in sorted(iitems(class_elts)):
xclasses.appendChild(class_elt)
xpackage.setAttribute("name", pkg_name.replace(os.sep, '.'))
xpackage.setAttribute("line-rate", rate(lhits, lnum))
if self.has_arcs:
branch_rate = rate(bhits, bnum)
else:
branch_rate = "0"
xpackage.setAttribute("branch-rate", branch_rate)
xpackage.setAttribute("complexity", "0")
lnum_tot += lnum
lhits_tot += lhits
bnum_tot += bnum
bhits_tot += bhits
xcoverage.setAttribute("line-rate", rate(lhits_tot, lnum_tot))
if self.has_arcs:
branch_rate = rate(bhits_tot, bnum_tot)
else:
branch_rate = "0"
xcoverage.setAttribute("branch-rate", branch_rate)
# Use the DOM to write the output file.
out = self.xml_out.toprettyxml()
if env.PY2:
out = out.encode("utf8")
outfile.write(out)
# Return the total percentage.
denom = lnum_tot + bnum_tot
if denom == 0:
pct = 0.0
else:
pct = 100.0 * (lhits_tot + bhits_tot) / denom
return pct
def xml_file(self, fr, analysis):
"""Add to the XML report for a single file."""
# Create the 'lines' and 'package' XML elements, which
# are populated later. Note that a package == a directory.
filename = fr.filename.replace("\\", "/")
for source_path in self.source_paths:
if filename.startswith(source_path.replace("\\", "/") + "/"):
rel_name = filename[len(source_path)+1:]
break
else:
rel_name = fr.relative_filename()
dirname = os.path.dirname(rel_name) or "."
dirname = "/".join(dirname.split("/")[:self.config.xml_package_depth])
package_name = dirname.replace("/", ".")
if rel_name != fr.filename:
self.source_paths.add(fr.filename[:-len(rel_name)].rstrip(r"\/"))
package = self.packages.setdefault(package_name, [{}, 0, 0, 0, 0])
xclass = self.xml_out.createElement("class")
xclass.appendChild(self.xml_out.createElement("methods"))
xlines = self.xml_out.createElement("lines")
xclass.appendChild(xlines)
xclass.setAttribute("name", os.path.relpath(rel_name, dirname))
xclass.setAttribute("filename", fr.relative_filename().replace("\\", "/"))
xclass.setAttribute("complexity", "0")
branch_stats = analysis.branch_stats()
missing_branch_arcs = analysis.missing_branch_arcs()
# For each statement, create an XML 'line' element.
for line in sorted(analysis.statements):
xline = self.xml_out.createElement("line")
xline.setAttribute("number", str(line))
# Q: can we get info about the number of times a statement is
# executed? If so, that should be recorded here.
xline.setAttribute("hits", str(int(line not in analysis.missing)))
if self.has_arcs:
if line in branch_stats:
total, taken = branch_stats[line]
xline.setAttribute("branch", "true")
xline.setAttribute(
"condition-coverage",
"%d%% (%d/%d)" % (100*taken/total, taken, total)
)
if line in missing_branch_arcs:
annlines = ["exit" if b < 0 else str(b) for b in missing_branch_arcs[line]]
xline.setAttribute("missing-branches", ",".join(annlines))
xlines.appendChild(xline)
class_lines = len(analysis.statements)
class_hits = class_lines - len(analysis.missing)
if self.has_arcs:
class_branches = sum(t for t, k in branch_stats.values())
missing_branches = sum(t - k for t, k in branch_stats.values())
class_br_hits = class_branches - missing_branches
else:
class_branches = 0.0
class_br_hits = 0.0
# Finalize the statistics that are collected in the XML DOM.
xclass.setAttribute("line-rate", rate(class_hits, class_lines))
if self.has_arcs:
branch_rate = rate(class_br_hits, class_branches)
else:
branch_rate = "0"
xclass.setAttribute("branch-rate", branch_rate)
package[0][rel_name] = xclass
package[1] += class_hits
package[2] += class_lines
package[3] += class_br_hits
package[4] += class_branches