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# Copyright (C) 2017 Intel Corporation
# Released under the MIT license (see COPYING.MIT)
import glob
import os
import unittest
from compatlayer import get_signatures, LayerType, check_command, get_depgraph
from compatlayer.case import OECompatLayerTestCase
class CommonCompatLayer(OECompatLayerTestCase):
def test_readme(self):
# The top-level README file may have a suffix (like README.rst or README.txt).
readme_files = glob.glob(os.path.join(self.tc.layer['path'], 'README*'))
self.assertTrue(len(readme_files) > 0,
msg="Layer doesn't contains README file.")
# There might be more than one file matching the file pattern above
# (for example, README.rst and README-COPYING.rst). The one with the shortest
# name is considered the "main" one.
readme_file = sorted(readme_files)[0]
data = ''
with open(readme_file, 'r') as f:
data = f.read()
self.assertTrue(data,
msg="Layer contains a README file but it is empty.")
def test_parse(self):
check_command('Layer %s failed to parse.' % self.tc.layer['name'],
'bitbake -p')
def test_show_environment(self):
check_command('Layer %s failed to show environment.' % self.tc.layer['name'],
'bitbake -e')
def test_world(self):
'''
"bitbake world" is expected to work. test_signatures does not cover that
because it is more lenient and ignores recipes in a world build that
are not actually buildable, so here we fail when "bitbake -S none world"
fails.
'''
get_signatures(self.td['builddir'], failsafe=False)
def test_signatures(self):
if self.tc.layer['type'] == LayerType.SOFTWARE and \
not self.tc.test_software_layer_signatures:
raise unittest.SkipTest("Not testing for signature changes in a software layer %s." \
% self.tc.layer['name'])
# task -> (old signature, new signature)
sig_diff = {}
curr_sigs, _ = get_signatures(self.td['builddir'], failsafe=True)
for task in self.td['sigs']:
if task in curr_sigs and \
self.td['sigs'][task] != curr_sigs[task]:
sig_diff[task] = (self.td['sigs'][task], curr_sigs[task])
if sig_diff:
# Beware, depgraph uses task=<pn>.<taskname> whereas get_signatures()
# uses <pn>:<taskname>. Need to convert sometimes. The output follows
# the convention from get_signatures() because that seems closer to
# normal bitbake output.
def sig2graph(task):
pn, taskname = task.rsplit(':', 1)
return pn + '.' + taskname
def graph2sig(task):
pn, taskname = task.rsplit('.', 1)
return pn + ':' + taskname
depgraph = get_depgraph(failsafe=True)
depends = depgraph['tdepends']
# If a task A has a changed signature, but none of its
# dependencies, then we need to report it because it is
# the one which introduces a change. Any task depending on
# A (directly or indirectly) will also have a changed
# signature, but we don't need to report it. It might have
# its own changes, which will become apparent once the
# issues that we do report are fixed and the test gets run
# again.
sig_diff_filtered = []
for task, (old_sig, new_sig) in sig_diff.items():
deps_tainted = False
for dep in depends.get(sig2graph(task), ()):
if graph2sig(dep) in sig_diff:
deps_tainted = True
break
if not deps_tainted:
sig_diff_filtered.append((task, old_sig, new_sig))
msg = []
msg.append('Layer %s changed %d signatures, initial differences (first hash without, second with layer):' %
(self.tc.layer['name'], len(sig_diff)))
for diff in sorted(sig_diff_filtered):
recipe, taskname = diff[0].rsplit(':', 1)
cmd = 'bitbake-diffsigs --task %s %s --signature %s %s' % \
(recipe, taskname, diff[1], diff[2])
msg.append(' %s: %s -> %s' % diff)
msg.append(' %s' % cmd)
try:
output = check_command('Determining signature difference failed.',
cmd).decode('utf-8')
except RuntimeError as error:
output = str(error)
if output:
msg.extend([' ' + line for line in output.splitlines()])
msg.append('')
self.fail('\n'.join(msg))
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