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# This file contains settings for pytest that are specific to astropy-helpers.
# Since we run many of the tests in sub-processes, we need to collect coverage
# data inside each subprocess and then combine it into a single .coverage file.
# To do this we set up a list which run_setup appends coverage objects to.
# This is not intended to be used by packages other than astropy-helpers.
import os
import glob
try:
from coverage import CoverageData
except ImportError:
HAS_COVERAGE = False
else:
HAS_COVERAGE = True
if HAS_COVERAGE:
SUBPROCESS_COVERAGE = []
def pytest_configure(config):
if HAS_COVERAGE:
SUBPROCESS_COVERAGE.clear()
def pytest_unconfigure(config):
if HAS_COVERAGE:
# We create an empty coverage data object
combined_cdata = CoverageData()
# Add all files from astropy_helpers to make sure we compute the total
# coverage, not just the coverage of the files that have non-zero
# coverage.
lines = {}
for filename in glob.glob(os.path.join('astropy_helpers', '**', '*.py'), recursive=True):
lines[os.path.abspath(filename)] = []
for cdata in SUBPROCESS_COVERAGE:
# For each CoverageData object, we go through all the files and
# change the filename from one which might be a temporary path
# to the local filename. We then only keep files that actually
# exist.
for filename in cdata.measured_files():
try:
pos = filename.rindex('astropy_helpers')
except ValueError:
continue
short_filename = filename[pos:]
if os.path.exists(short_filename):
lines[os.path.abspath(short_filename)].extend(cdata.lines(filename))
combined_cdata.add_lines(lines)
combined_cdata.write_file('.coverage.subprocess')
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