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"""Summary reporting"""
import sys
from coverage.codeunit import code_unit_factory
class SummaryReporter:
"""A reporter for writing the summary report."""
def __init__(self, coverage, show_missing=True, ignore_errors=False):
self.coverage = coverage
self.show_missing = show_missing
self.ignore_errors = ignore_errors
def report(self, morfs, omit_prefixes=None, outfile=None):
"""Writes a report summarizing coverage statistics per module."""
morfs = morfs or self.coverage.data.executed_files()
code_units = code_unit_factory(morfs, self.coverage.file_locator, omit_prefixes)
code_units.sort()
max_name = max(5, max(map(lambda cu: len(cu.name), code_units)))
fmt_name = "%%- %ds " % max_name
fmt_err = fmt_name + "%s: %s\n"
header = fmt_name % "Name" + " Stmts Exec Cover\n"
fmt_coverage = fmt_name + "% 6d % 6d % 5d%%\n"
if self.show_missing:
header = header.replace("\n", " Missing\n")
fmt_coverage = fmt_coverage.replace("\n", " %s\n")
if not outfile:
outfile = sys.stdout
rule = "-" * (len(header)-1) + "\n"
outfile.write(header)
outfile.write(rule)
total_statements = 0
total_executed = 0
for cu in code_units:
try:
_, statements, _, missing, readable = self.coverage.analyze(cu)
n = len(statements)
m = n - len(missing)
if n > 0:
pc = 100.0 * m / n
else:
pc = 100.0
args = (cu.name, n, m, pc)
if self.show_missing:
args = args + (readable,)
outfile.write(fmt_coverage % args)
total_statements = total_statements + n
total_executed = total_executed + m
except KeyboardInterrupt: #pragma: no cover
raise
except:
if not self.ignore_errors:
typ, msg = sys.exc_info()[:2]
outfile.write(fmt_err % (cu.name, typ, msg))
if len(code_units) > 1:
outfile.write(rule)
if total_statements > 0:
pc = 100.0 * total_executed / total_statements
else:
pc = 100.0
args = ("TOTAL", total_statements, total_executed, pc)
if self.show_missing:
args = args + ("",)
outfile.write(fmt_coverage % args)
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