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# Copyright 2014 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import datetime
import default_flavor
import posixpath
import ssh_devices
"""Utils for running coverage tests."""
class CoverageFlavorUtils(default_flavor.DefaultFlavorUtils):
def step(self, name, cmd, **kwargs):
"""Run the given step through coverage."""
compile_target = 'dm'
build_cmd = [self._skia_api.skia_dir.join('tools', 'llvm_coverage_build'),
compile_target]
self._skia_api.run(self._skia_api.m.step,
'build %s' % compile_target,
cmd=build_cmd,
cwd=self._skia_api.m.path['checkout'])
# Slice out the 'key' and 'properties' arguments to be reused.
key = []
properties = []
current = None
for i in xrange(0, len(cmd)):
if isinstance(cmd[i], basestring) and cmd[i] == '--key':
current = key
elif isinstance(cmd[i], basestring) and cmd[i] == '--properties':
current = properties
elif isinstance(cmd[i], basestring) and cmd[i].startswith('--'):
current = None
if current is not None:
current.append(cmd[i])
results_dir = self._skia_api.skia_out.join('coverage_results')
self.create_clean_host_dir(results_dir)
# Run DM under coverage.
report_file_basename = '%s.cov' % self._skia_api.got_revision
report_file = results_dir.join(report_file_basename)
args = [
'python',
self._skia_api.skia_dir.join('tools', 'llvm_coverage_run.py'),
] + cmd + ['--outResultsFile', report_file]
self._skia_api.run(self._skia_api.m.step, name=name, cmd=args,
cwd=self._skia_api.m.path['checkout'], **kwargs)
# Generate nanobench-style JSON output from the coverage report.
nanobench_json = results_dir.join('nanobench_%s.json' % (
self._skia_api.got_revision))
line_by_line_basename = ('coverage_by_line_%s.json' % (
self._skia_api.got_revision))
line_by_line = results_dir.join(line_by_line_basename)
args = [
'python',
self._skia_api.skia_dir.join('tools', 'parse_llvm_coverage.py'),
'--report', report_file, '--nanobench', nanobench_json,
'--linebyline', line_by_line]
args.extend(key)
args.extend(properties)
self._skia_api.run(
self._skia_api.m.step,
'Generate Coverage Data',
cmd=args, cwd=self._skia_api.m.path['checkout'])
# Copy files from results_dir into swarming_out_dir.
for r in self._skia_api.m.file.listdir('results_dir', results_dir):
self._skia_api.m.file.copy(
'Copy to swarming out', results_dir.join(r),
self._skia_api.swarming_out_dir)
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