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"""
Write and report coverage data with 'coverage.py'.
"""
import py
coverage = py.test.importorskip("coverage")
def pytest_configure(config):
# Load the runner and start it up
from coverage.runner import CoverageTestWrapper
config.coverage = CoverageTestWrapper(config.option)
config.coverage.start()
def pytest_terminal_summary(terminalreporter):
# Finished the tests start processing the coverage
config = terminalreporter.config
tw = terminalreporter._tw
tw.sep('-', 'coverage')
tw.line('Processing Coverage...')
# finish up with coverage
config.coverage.finish()
def pytest_addoption(parser):
"""
Get all the options from the coverage.runner and import them
"""
from coverage.runner import Options
group = parser.getgroup('Coverage options')
# Loop the coverage options and append them to the plugin options
options = [a for a in dir(Options) if not a.startswith('_')]
for option in options:
opt = getattr(Options, option)
group._addoption_instance(opt, shortupper=True)
# Monkey patch omit_filter to use regex patterns for file omits
def omit_filter(omit_prefixes, code_units):
import re
exclude_patterns = [re.compile(line.strip()) for line in omit_prefixes if line and not line.startswith('#')]
filtered = []
for cu in code_units:
skip = False
for pattern in exclude_patterns:
if pattern.search(cu.filename):
skip = True
break
if not skip:
filtered.append(cu)
return filtered
coverage.codeunit.omit_filter = omit_filter
def test_functional(testdir):
py.test.importorskip("coverage")
testdir.plugins.append("coverage")
testdir.makepyfile("""
def f():
x = 42
def test_whatever():
pass
""")
result = testdir.runpytest()
assert result.ret == 0
assert result.stdout.fnmatch_lines([
'*Processing Coverage*'
])
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