cppcheck/test/cli/test-more-projects.py

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# python -m pytest test-more-projects.py
import json
import os
import pytest
from testutils import cppcheck, assert_cppcheck
def test_project_force_U(tmpdir):
# 10018
# -U does not work with compile_commands.json
with open(os.path.join(tmpdir, 'bug1.cpp'), 'wt') as f:
f.write("""
int x = 123 / 0;
#ifdef MACRO1
int y = 1000 / 0;
#endif
""")
compile_commands = os.path.join(tmpdir, 'compile_commands.json')
compilation_db = [
{"directory": str(tmpdir),
"command": "c++ -o bug1.o -c bug1.cpp",
"file": "bug1.cpp",
"output": "bug1.o"}
]
with open(compile_commands, 'wt') as f:
f.write(json.dumps(compilation_db))
# Without -U => both bugs are found
ret, stdout, stderr = cppcheck(['--project=' + compile_commands, '--force', '-rp=' + str(tmpdir), '--template=cppcheck1'])
assert ret == 0, stdout
assert (stderr == '[bug1.cpp:2]: (error) Division by zero.\n'
'[bug1.cpp:4]: (error) Division by zero.\n')
# With -U => only first bug is found
ret, stdout, stderr = cppcheck(['--project=' + compile_commands, '--force', '-UMACRO1', '-rp=' + str(tmpdir), '--template=cppcheck1'])
assert ret == 0, stdout
assert stderr == '[bug1.cpp:2]: (error) Division by zero.\n'
def __write_cppcheck_project_file(tmpdir, platform=None, importproject=None):
project_file = os.path.join(tmpdir, 'Project.cppcheck')
if platform is not None:
platform = '<platform>{}</platform>'.format(platform)
if importproject is not None:
platform = '<importproject>{}</importproject>'.format(importproject)
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project version="1">
{}
{}
<paths>
<dir name="."/>
</paths>
</project>""".format(platform, importproject)
)
return project_file
def test_project_custom_platform(tmpdir):
"""
import cppcheck project that contains a custom platform file
"""
project_file = __write_cppcheck_project_file(tmpdir, platform='p1.xml')
with open(os.path.join(tmpdir, 'p1.xml'), 'wt') as f:
f.write('<?xml version="1.0"?>\n<platform/>')
with open(os.path.join(tmpdir, '1.c'), 'wt') as f:
f.write("int x;")
ret, stdout, stderr = cppcheck(['--project=' + project_file, '--template=cppcheck1', '-q'])
assert ret == 0, stdout
assert stdout == ''
assert stderr == ''
def test_project_empty_platform(tmpdir):
"""
import cppcheck project that contains an empty platform type
"""
project_file = __write_cppcheck_project_file(tmpdir, platform='')
with open(os.path.join(tmpdir, '1.c'), 'wt') as f:
f.write("int x;")
ret, stdout, stderr = cppcheck(['--project=' + project_file, '--template=cppcheck1', '-q'])
assert ret == 0, stdout
assert stdout == ''
assert stderr == ''
def test_project_unspecified_platform(tmpdir):
"""
import cppcheck project that contains the deprecated platform type "Unspecified"
"""
project_file = __write_cppcheck_project_file(tmpdir, platform='Unspecified')
with open(os.path.join(tmpdir, '1.c'), 'wt') as f:
f.write("int x;")
ret, stdout, stderr = cppcheck(['--project=' + project_file, '--template=cppcheck1', '-q'])
assert ret == 0, stdout
assert stdout == "cppcheck: 'Unspecified' is a deprecated platform type and will be removed in Cppcheck 2.14. Please use 'unspecified' instead.\n"
assert stderr == ''
def test_project_unknown_platform(tmpdir):
"""
import cppcheck project that contains an unknown platform type
"""
project_file = __write_cppcheck_project_file(tmpdir, platform='dummy')
with open(os.path.join(tmpdir, '1.c'), 'wt') as f:
f.write("int x;")
ret, stdout, stderr = cppcheck(['--project=' + project_file, '--template=cppcheck1'])
assert ret == 1, stdout
assert stdout == "cppcheck: error: unrecognized platform: 'dummy'.\n"
assert stderr == ''
def test_project_empty_fields(tmpdir):
"""
import cppcheck project that contains all empty fields - make sure there are no crashes
"""
project_file = os.path.join(tmpdir, 'Project.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project version="1">
<root/>
<builddir/>
<includedir/>
<includedir>
<dir/>
</includedir>
<defines/>
<defines>
<define/>
</defines>
<undefines/>
<undefines>
<undefine/>
</undefines>
<importproject/>
<paths/>
<paths>
<dir/>
</paths>
<exclude/>
<exclude>
<paths/>
</exclude>
<function-contracts/>
<variable-contracts/>
<ignore/>
<ignore>
<path/>
</ignore>
<libraries/>
<libraries>
<library/>
</libraries>
<suppressions/>
<suppressions>
<suppression/>
</suppressions>
<vs-configurations/>
<vs-configurations>
<config/>
</vs-configurations>
<platform/>
<analyze-all-vs-configs/>
<parser/>
<addons/>
<addons>
<addon/>
</addons>
<tags/>
<tools/>
<tools>
<tool/>
</tools>
<check-headers/>
<check-unused-templates/>
<max-ctu-depth/>
<max-template-recursion/>
<check-unknown-function-return-values/>
<safe-checks/>
<safe-checks>
<class-public/>
<external-functions/>
<internal-functions/>
<external-variables/>
</safe-checks>
<tag-warnings/>
<bug-hunting/>
<cert-c-int-precision/>
<coding-standards/>
<coding-standards>
<coding-standard/>
</coding-standards>
</project>""")
ret, stdout, stderr = cppcheck(['--project=' + project_file, '--template=cppcheck1'])
assert ret == 1, stdout # do not crash
assert stdout == 'cppcheck: error: no C or C++ source files found.\n'
assert stderr == ''
def test_project_missing_subproject(tmpdir):
"""
import cppcheck project that contains an unknown platform type
"""
project_file = __write_cppcheck_project_file(tmpdir, importproject='dummy.json')
ret, stdout, stderr = cppcheck(['--project=' + project_file, '--template=cppcheck1'])
assert ret == 1, stdout
assert stdout == "cppcheck: error: failed to open project '{}/dummy.json'. The file does not exist.\n".format(str(tmpdir).replace('\\', '/'))
assert stderr == ''
def test_project_std(tmpdir):
with open(os.path.join(tmpdir, 'bug1.cpp'), 'wt') as f:
f.write("""
#if __cplusplus == 201402L
int x = 123 / 0;
#endif
""")
compile_commands = os.path.join(tmpdir, 'compile_commands.json')
compilation_db = [
{
"directory": str(tmpdir),
"command": "c++ -o bug1.o -c bug1.cpp -std=c++14",
"file": "bug1.cpp",
"output": "bug1.o"
}
]
with open(compile_commands, 'wt') as f:
f.write(json.dumps(compilation_db))
ret, stdout, stderr = cppcheck(['--project=' + compile_commands, '--enable=all', '-rp=' + str(tmpdir), '--template=cppcheck1'])
assert ret == 0, stdout
assert (stderr == '[bug1.cpp:3]: (error) Division by zero.\n')
@pytest.mark.skip() # clang-tidy is not available in all cases
def test_clang_tidy(tmpdir):
test_file = os.path.join(tmpdir, 'test.cpp')
with open(test_file, 'wt') as f:
f.write("""
int main(int argc)
{
(void)argc;
}
""")
project_file = os.path.join(tmpdir, 'test.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project version="1">
<paths>
<dir name="{}"/>
</paths>>
<tools>
<tool>clang-tidy</tool>
</tools>
</project>""".format(test_file))
args = ['--project={}'.format(project_file)]
exitcode, stdout, stderr = cppcheck(args)
assert exitcode == 0, stdout
lines = stdout.splitlines()
# TODO: should detect clang-tidy issue
assert len(lines) == 1
assert lines == [
'Checking {} ...'.format(test_file)
]
assert stderr == ''
def test_project_file_filter(tmpdir):
test_file = os.path.join(tmpdir, 'test.cpp')
with open(test_file, 'wt') as f:
pass
project_file = os.path.join(tmpdir, 'test.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project>
<paths>
<dir name="{}"/>
</paths>
</project>""".format(test_file))
args = ['--file-filter=*.cpp', '--project={}'.format(project_file)]
out_lines = [
'Checking {} ...'.format(test_file)
]
assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)
def test_project_file_filter_2(tmpdir):
test_file_1 = os.path.join(tmpdir, 'test.cpp')
with open(test_file_1, 'wt') as f:
pass
test_file_2 = os.path.join(tmpdir, 'test.c')
with open(test_file_2, 'wt') as f:
pass
project_file = os.path.join(tmpdir, 'test.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project>
<paths>
<dir name="{}"/>
<dir name="{}"/>
</paths>
</project>""".format(test_file_1, test_file_2))
args = ['--file-filter=*.cpp', '--project={}'.format(project_file)]
out_lines = [
'Checking {} ...'.format(test_file_1)
]
assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)
def test_project_file_filter_3(tmpdir):
test_file_1 = os.path.join(tmpdir, 'test.cpp')
with open(test_file_1, 'wt') as f:
pass
test_file_2 = os.path.join(tmpdir, 'test.c')
with open(test_file_2, 'wt') as f:
pass
project_file = os.path.join(tmpdir, 'test.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project>
<paths>
<dir name="{}"/>
<dir name="{}"/>
</paths>
</project>""".format(test_file_1, test_file_2))
args = ['--file-filter=*.c', '--project={}'.format(project_file)]
out_lines = [
'Checking {} ...'.format(test_file_2)
]
assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)
def test_project_file_filter_no_match(tmpdir):
project_file = os.path.join(tmpdir, 'test.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project>
<paths>
<dir name="test.cpp"/>
</paths>
</project>""")
args = ['--file-filter=*.c', '--project={}'.format(project_file)]
out_lines = [
'cppcheck: error: could not find any files matching the filter.'
]
assert_cppcheck(args, ec_exp=1, err_exp=[], out_exp=out_lines)
def test_project_file_order(tmpdir):
test_file_a = os.path.join(tmpdir, 'a.c')
with open(test_file_a, 'wt'):
pass
test_file_b = os.path.join(tmpdir, 'b.c')
with open(test_file_b, 'wt'):
pass
test_file_c = os.path.join(tmpdir, 'c.c')
with open(test_file_c, 'wt'):
pass
test_file_d = os.path.join(tmpdir, 'd.c')
with open(test_file_d, 'wt'):
pass
project_file = os.path.join(tmpdir, 'test.cppcheck')
with open(project_file, 'wt') as f:
f.write(
"""<?xml version="1.0" encoding="UTF-8"?>
<project>
<paths>
<dir name="{}"/>
<dir name="{}"/>
<dir name="{}"/>
<dir name="{}"/>
</paths>
</project>""".format(test_file_c, test_file_d, test_file_b, test_file_a))
args = ['--project={}'.format(project_file)]
exitcode, stdout, stderr = cppcheck(args)
assert exitcode == 0
lines = stdout.splitlines()
assert lines == [
'Checking {} ...'.format(test_file_c),
'1/4 files checked 0% done',
'Checking {} ...'.format(test_file_d),
'2/4 files checked 0% done',
'Checking {} ...'.format(test_file_b),
'3/4 files checked 0% done',
'Checking {} ...'.format(test_file_a),
'4/4 files checked 0% done'
]
assert stderr == ''