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# python -m pytest inline-suppress_test.py
import json
import os
import pytest
import sys
import time
from testutils import cppcheck
__script_dir = os.path.dirname(os.path.abspath(__file__))
__proj_inline_suppres_path = 'proj-inline-suppress' + os.path.sep
def __create_unused_function_compile_commands(tmpdir):
prjpath = os.path.realpath(os.path.join(__script_dir, 'proj-inline-suppress-unusedFunction'))
j = [{'directory': prjpath,
'command': '/usr/bin/c++ -I"' + prjpath + '" -o "' + os.path.join(prjpath, 'B.cpp.o') + '" -c "' + os.path.join(prjpath, 'B.cpp') + '"',
'file': os.path.join(prjpath, 'B.cpp')},
{'directory': prjpath,
'command': '/usr/bin/c++ -I"' + prjpath + '" -o "' + os.path.join(prjpath, 'A.cpp.o') + '" -c "' + os.path.join(prjpath, 'A.cpp') + '"',
'file': os.path.join(prjpath, 'A.cpp')}]
compdb_path = os.path.join(tmpdir, 'proj-inline-suppress-unusedFunction')
os.makedirs(compdb_path)
compile_commands = os.path.join(compdb_path, 'compile_commands.json')
with open(compile_commands, 'wt') as f:
f.write(json.dumps(j, indent=4))
return compile_commands
def test_1():
args = [
'-q',
'--template=simple',
'--inline-suppr',
'proj-inline-suppress'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr == ''
assert stdout == ''
assert ret == 0, stdout
def test_2():
args = [
'-q',
'--template=simple',
'proj-inline-suppress'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == [
'{}3.cpp:4:19: error: Division by zero. [zerodiv]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout
def test_xml():
args = [
'-q',
'--template=simple',
'--inline-suppr',
'--xml-version=3',
'proj-inline-suppress'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert '<suppression errorId="some_warning_id" fileName="proj-inline-suppress/2.c" lineNumber="2" inline="true" comment="there should be a unmatchedSuppression warning about this" />' in stderr
assert stdout == ''
assert ret == 0, stdout
def test_unmatched_suppression():
args = [
'-q',
'--template=simple',
'--inline-suppr',
'--enable=information',
'--error-exitcode=1',
'{}2.c'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == [
'{}2.c:2:1: information: Unmatched suppression: some_warning_id [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 1, stdout
def test_unmatched_suppression_path_with_extra_stuff():
args = [
'-q',
'--template=simple',
'--inline-suppr',
'--enable=information',
'--error-exitcode=1',
'{}2.c'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == [
'{}2.c:2:1: information: Unmatched suppression: some_warning_id [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 1, stdout
def test_backwards_compatibility():
args = [
'-q',
'--template=simple',
'{}3.cpp'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == [
'{}3.cpp:4:19: error: Division by zero. [zerodiv]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout
args = [
'-q',
'--template=simple',
'--inline-suppr',
'{}3.cpp'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def __test_compile_commands_unused_function(tmpdir, use_j):
compdb_file = __create_unused_function_compile_commands(tmpdir)
args = [
'-q',
'--template=simple',
'--enable=all',
'--error-exitcode=1',
'--project={}'.format(compdb_file)
]
if use_j:
args.append('-j2')
else:
args.append('-j1')
ret, stdout, stderr = cppcheck(args)
proj_path_sep = os.path.join(__script_dir, 'proj-inline-suppress-unusedFunction') + os.path.sep
lines = stderr.splitlines()
assert lines == [
"{}B.cpp:6:9: style: The function 'unusedFunctionTest' is never used. [unusedFunction]".format(proj_path_sep)
]
assert stdout == ''
assert ret == 1, stdout
def test_compile_commands_unused_function(tmpdir):
__test_compile_commands_unused_function(tmpdir, False)
@pytest.mark.skip # unusedFunction does not work with -j
def test_compile_commands_unused_function_j(tmpdir):
__test_compile_commands_unused_function(tmpdir, True)
def __test_compile_commands_unused_function_suppression(tmpdir, use_j):
compdb_file = __create_unused_function_compile_commands(tmpdir)
args = [
'-q',
'--template=simple',
'--enable=all',
'--inline-suppr',
'--error-exitcode=1',
'--project={}'.format(compdb_file)
]
if use_j:
args.append('-j2')
else:
args.append('-j1')
ret, stdout, stderr = cppcheck(args)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def test_compile_commands_unused_function_suppression(tmpdir):
__test_compile_commands_unused_function_suppression(tmpdir, False)
@pytest.mark.skip # unusedFunction does not work with -j
def test_compile_commands_unused_function_suppression_j(tmpdir):
__test_compile_commands_unused_function_suppression(tmpdir, True)
def test_unmatched_suppression_ifdef():
args = [
'-q',
'--template=simple',
'--enable=information',
'--inline-suppr',
'-DNO_ZERO_DIV',
'trac5704/trac5704a.c'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def test_unmatched_suppression_ifdef_0():
args = [
'-q',
'--template=simple',
'--enable=information',
'--inline-suppr',
'trac5704/trac5704b.c'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def test_build_dir(tmpdir):
args = [
'-q',
'--template=simple',
'--cppcheck-build-dir={}'.format(tmpdir),
'--enable=all',
'--inline-suppr',
'{}4.c'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def test_build_dir_include(tmpdir):
args = [
'-q',
'--template=simple',
'--cppcheck-build-dir={}'.format(tmpdir),
'--enable=all',
'--inline-suppr',
'{}5.cpp'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def test_build_dir_jobs_suppressions(tmpdir): #14064
args = [
'-q',
'--template=simple',
'--cppcheck-build-dir={}'.format(tmpdir),
'--enable=style',
'--inline-suppr',
'-j4',
'reanalysis'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
a1Path = os.path.join(tmpdir, 'd.a1')
assert os.path.exists(a1Path)
mtimeOld = os.path.getmtime(a1Path)
time.sleep(1)
for _ in range(1, 10):
cppcheck(args, cwd=__script_dir)
mtimeNew = os.path.getmtime(a1Path)
assert mtimeOld == mtimeNew
def __test_build_dir_unused_template(tmpdir, extra_args):
args = [
'-q',
'--template=simple',
'--cppcheck-build-dir={}'.format(tmpdir),
'--enable=all',
'--inline-suppr',
'{}template.cpp'.format(__proj_inline_suppres_path)
]
args = args + extra_args
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
def test_build_dir_unused_template(tmpdir):
__test_build_dir_unused_template(tmpdir, ['-j1', '--no-cppcheck-build-dir'])
def test_build_dir_unused_template_j_thread(tmpdir):
__test_build_dir_unused_template(tmpdir, ['-j2', '--executor=thread'])
@pytest.mark.skipif(sys.platform == 'win32', reason='ProcessExecutor not available on Windows')
def test_build_dir_unused_template_j_process(tmpdir):
__test_build_dir_unused_template(tmpdir, ['-j2', '--executor=process'])
def test_suppress_unmatched_inline_suppression(): # 11172
args = [
'-q',
'--template=simple',
'--enable=information',
'--suppress=unmatchedSuppression',
'--inline-suppr',
'{}2.c'.format(__proj_inline_suppres_path)
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
assert lines == []
assert stdout == ''
assert ret == 0, stdout
@pytest.mark.skip # TODO: this test makes no sense
@pytest.mark.xfail(strict=True) # no error as inline suppressions are currently not being propagated back
def test_duplicate(tmpdir):
args = [
'-q',
'--template=simple',
'--enable=all',
'--inline-suppr',
'proj-inline-suppress/duplicate.cpp'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr.splitlines() == []
assert stdout.splitlines() == [
"cppcheck: error: suppression 'unreadVariable' already exists"
]
assert ret == 0, stdout
# no error as inline suppressions are handled separately
def __test_duplicate_cmd(tmpdir, extra_args):
args = [
'-q',
'--template=simple',
'--enable=all',
'--inline-suppr',
'--suppress=unreadVariable',
'proj-inline-suppress/4.c'
]
args = args + extra_args
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
# this is the suppression provided via the command-line which is unused because only the inline suppression is being matched
assert lines == [
'nofile:0:0: information: Unmatched suppression: unreadVariable [unmatchedSuppression]'
]
assert stdout == ''
assert ret == 0, stdout
@pytest.mark.skip # TODO: behavior of duplicate suppressions across inline and non-inline is currently undefined
def test_duplicate_cmd(tmp_path):
__test_duplicate_cmd(tmp_path, ['-j1'])
@pytest.mark.skip # TODO: behavior of duplicate suppressions across inline and non-inline is currently undefined
def test_duplicate_cmd_j(tmp_path):
__test_duplicate_cmd(tmp_path, ['-j2'])
# no error as inline suppressions are handled separately
def __test_duplicate_file(tmp_path, extra_args):
suppr_file = tmp_path / 'suppressions'
with open(suppr_file, 'wt') as f:
f.write('unreadVariable')
args = [
'-q',
'--template=simple',
'--enable=all',
'--inline-suppr',
'--suppressions-list={}'.format(suppr_file),
'proj-inline-suppress/4.c'
]
args = args + extra_args
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
# this is the suppression provided via the suppression file which is unused because only the inline suppression is being matched
assert lines == [
'nofile:0:0: information: Unmatched suppression: unreadVariable [unmatchedSuppression]'
]
assert stdout == ''
assert ret == 0, stdout
@pytest.mark.skip # TODO: behavior of duplicate suppressions across inline and non-inline is currently undefined
def test_duplicate_file(tmpdir):
__test_duplicate_file(tmpdir, ['-j1'])
@pytest.mark.skip # TODO: behavior of duplicate suppressions across inline and non-inline is currently undefined
def test_duplicate_file_j(tmpdir):
__test_duplicate_file(tmpdir, ['-j2'])
# reporting of inline unusedFunction is deferred
def __test_unused_function_unmatched(tmpdir, extra_args):
args = [
'-q',
'--template=simple',
'--enable=all',
'--inline-suppr',
'proj-inline-suppress/unusedFunctionUnmatched.cpp'
]
args += extra_args
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
lines = stderr.splitlines()
lines.sort()
assert lines == [
'{}unusedFunctionUnmatched.cpp:5:1: information: Unmatched suppression: uninitvar [unmatchedSuppression]'.format(__proj_inline_suppres_path),
'{}unusedFunctionUnmatched.cpp:5:1: information: Unmatched suppression: unusedFunction [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout
def test_unused_function_unmatched(tmpdir):
__test_unused_function_unmatched(tmpdir, ['-j1', '--no-cppcheck-build-dir'])
@pytest.mark.xfail(strict=True) # TODO: check error - do not work with -j2
def test_unused_function_unmatched_j(tmpdir):
__test_unused_function_unmatched(tmpdir, ['-j2', '--no-cppcheck-build-dir'])
def test_unused_function_unmatched_builddir(tmpdir):
build_dir = os.path.join(tmpdir, 'b1')
os.mkdir(build_dir)
__test_unused_function_unmatched(tmpdir, ['-j1', '--cppcheck-build-dir={}'.format(build_dir)])
def test_unused_function_unmatched_builddir_j_thread(tmpdir):
build_dir = os.path.join(tmpdir, 'b1')
os.mkdir(build_dir)
__test_unused_function_unmatched(tmpdir, ['-j2', '--cppcheck-build-dir={}'.format(build_dir), '--executor=thread'])
@pytest.mark.skipif(sys.platform == 'win32', reason='ProcessExecutor not available on Windows')
def test_unused_function_unmatched_builddir_j_process(tmpdir):
build_dir = os.path.join(tmpdir, 'b1')
os.mkdir(build_dir)
__test_unused_function_unmatched(tmpdir, ['-j2', '--cppcheck-build-dir={}'.format(build_dir), '--executor=process'])
# do not report unmatched unusedFunction inline suppressions when unusedFunction check is disabled
def test_unused_function_disabled_unmatched():
args = [
'-q',
'--template=simple',
'--enable=warning,information',
'--inline-suppr',
'proj-inline-suppress/unusedFunctionUnmatched.cpp'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr.splitlines() == [
'{}unusedFunctionUnmatched.cpp:5:1: information: Unmatched suppression: uninitvar [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout
def test_unmatched_cfg():
# make sure we do not report unmatched inline suppressions from inactive code blocks
args = [
'-q',
'--template=simple',
'--enable=warning,information',
'--inline-suppr',
'proj-inline-suppress/cfg.c'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr.splitlines() == [
'{}cfg.c:5:5: information: Unmatched suppression: id [unmatchedSuppression]'.format(__proj_inline_suppres_path),
'{}cfg.c:9:5: information: Unmatched suppression: id [unmatchedSuppression]'.format(__proj_inline_suppres_path),
]
assert stdout == ''
assert ret == 0, stdout
# do not report unmatched unusedFunction inline suppressions when unusedFunction check is disabled
# unusedFunction is disabled when -j2 is specified without a builddir
def test_unused_function_disabled_unmatched_j():
args = [
'-q',
'--template=simple',
'--enable=warning,information',
'--inline-suppr',
'-j2',
'--no-cppcheck-build-dir',
'proj-inline-suppress/unusedFunctionUnmatched.cpp'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr.splitlines() == [
'{}unusedFunctionUnmatched.cpp:5:1: information: Unmatched suppression: uninitvar [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout
# do not report unmatched misra-* inline suppressions when misra is not provided
def test_misra_disabled_unmatched(): #14232
args = [
'-q',
'--template=simple',
'--enable=warning,information',
'--inline-suppr',
'proj-inline-suppress/misraUnmatched.c'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr.splitlines() == [
'{}misraUnmatched.c:5:1: information: Unmatched suppression: uninitvar [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout
# do not report unmatched premium-* inline suppressions when application is not premium
def test_premium_disabled_unmatched(): #13663
args = [
'-q',
'--template=simple',
'--enable=warning,information',
'--inline-suppr',
'proj-inline-suppress/premiumUnmatched.cpp'
]
ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
assert stderr.splitlines() == [
'{}premiumUnmatched.cpp:5:1: information: Unmatched suppression: uninitvar [unmatchedSuppression]'.format(__proj_inline_suppres_path)
]
assert stdout == ''
assert ret == 0, stdout