def test_class_source_lines__raises_when_no_filesystem():
from pycobertura.cobertura import Cobertura
cobertura = Cobertura('tests/cobertura.xml')
for filename in cobertura.files():
pytest.raises(Cobertura.MissingFileSystem, cobertura.source_lines,
filename)
def collect(self):
from pycobertura import Cobertura
# Check if file exists
infile = Path(self.config.xmlpath.value)
if not infile.is_file():
raise FileNotFoundError('No such file {}'.format(infile))
# Parse file
cobertura = Cobertura(str(infile))
# Filter files
include = self.config.include.value
exclude = self.config.exclude.value
original = cobertura.files()
relevant = [
filename for filename in original
if is_wanted(filename, include, exclude)
]
ignored = sorted(set(original) - set(relevant))
if ignored:
log.info('{} files ignored from total coverage'.format(
len(ignored)))
# Get files coverage data
total = {
'total_statements': 0,
'total_misses': 0,
'total_hits': 0,
'branch_rate': 0.0,
'line_rate': 0.0,
}
files = {
filename:
{key: getattr(cobertura, key)(filename=filename)
for key in total}
for filename in relevant
}
# Calculate total
def reducer(accumulator, element):
for key in ['total_statements', 'total_misses', 'total_hits']:
accumulator[key] = accumulator.get(key, 0) + element[key]
return accumulator
total = reduce(reducer, files.values(), total)
# Re-calculate total statements
if total['total_statements']:
total['line_rate'] = 1.0 - (total['total_misses'] /
total['total_statements'])
# Assign branch-rate
total['branch_rate'] = cobertura.branch_rate()
if include != ['*'] or exclude:
log.warning(
'Branch rate cannot be re-calculated when filtering files as '
'the cobertura XML doesn\'t include the raw number of '
'branches hit and total branches.')
return {
'files': files,
'total': total,
'ignored': ignored,
}