cppcheck/test/cli/test-other.py

# python -m pytest test-other.py

import os
import sys
import pytest

from testutils import cppcheck, assert_cppcheck


def __test_missing_include(tmpdir, use_j):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write("""
                #include "test.h"
                """)

    args = ['--enable=missingInclude', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_file]
    if use_j:
        args.insert(0, '-j2')

    _, _, stderr = cppcheck(args)
    assert stderr == '{}:2:0: information: Include file: "test.h" not found. [missingInclude]\n'.format(test_file)


def test_missing_include(tmpdir):
    __test_missing_include(tmpdir, False)


def test_missing_include_j(tmpdir): #11283
    __test_missing_include(tmpdir, True)


def __test_missing_include_check_config(tmpdir, use_j):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write("""
                #include "test.h"
                """)

    # TODO: -rp is not working requiring the full path in the assert
    args = '--check-config -rp={} {}'.format(tmpdir, test_file)
    if use_j:
        args = '-j2 ' + args

    _, _, stderr = cppcheck(args.split())
    assert stderr == '' # --check-config no longer reports the missing includes


def test_missing_include_check_config(tmpdir):
    __test_missing_include_check_config(tmpdir, False)


def test_missing_include_check_config_j(tmpdir):
    __test_missing_include_check_config(tmpdir, True)


def test_missing_include_inline_suppr(tmpdir):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write("""
                // cppcheck-suppress missingInclude
                #include "missing.h"
                // cppcheck-suppress missingIncludeSystem
                #include <missing2.h>
                """)

    args = ['--enable=missingInclude', '--inline-suppr', test_file]

    _, _, stderr = cppcheck(args)
    assert stderr == ''


def test_preprocessor_error(tmpdir):
    test_file = os.path.join(tmpdir, '10866.c')
    with open(test_file, 'wt') as f:
        f.write('#error test\nx=1;\n')
    exitcode, _, stderr = cppcheck(['--error-exitcode=1', test_file])
    assert 'preprocessorErrorDirective' in stderr
    assert exitcode != 0


def test_invalid_library(tmpdir):
    args = ['--library=none', '--library=posix', '--library=none2', 'file.c']

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 1
    assert (stdout == "cppcheck: Failed to load library configuration file 'none'. File not found\n"
                      "cppcheck: Failed to load library configuration file 'none2'. File not found\n")
    assert stderr == ""


def test_message_j(tmpdir):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write("")

    args = ['-j2', test_file]

    _, stdout, _ = cppcheck(args)
    assert stdout == "Checking {} ...\n".format(test_file) # we were adding stray \0 characters at the end

# TODO: test missing std.cfg


def test_progress(tmpdir):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write("""
                int main(int argc)
                {
                }
                """)

    args = ['--report-progress=0', '--enable=all', '--inconclusive', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    pos = stdout.find('\n')
    assert(pos != -1)
    pos += 1
    assert stdout[:pos] == "Checking {} ...\n".format(test_file)
    assert (stdout[pos:] ==
            "progress: Tokenize (typedef) 0%\n"
            "progress: Tokenize (typedef) 12%\n"
            "progress: Tokenize (typedef) 25%\n"
            "progress: Tokenize (typedef) 37%\n"
            "progress: Tokenize (typedef) 50%\n"
            "progress: Tokenize (typedef) 62%\n"
            "progress: Tokenize (typedef) 75%\n"
            "progress: Tokenize (typedef) 87%\n"
            "progress: SymbolDatabase 0%\n"
            "progress: SymbolDatabase 12%\n"
            "progress: SymbolDatabase 87%\n"
            )
    assert stderr == ""


def test_progress_j(tmpdir):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write("""
                int main(int argc)
                {
                }
                """)

    args = ['--report-progress=0', '--enable=all', '--inconclusive', '-j2', '--disable=unusedFunction', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    assert stdout == "Checking {} ...\n".format(test_file)
    assert stderr == ""


def test_execute_addon_failure(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
                void f();
                """)

    args = ['--addon=naming', test_file]

    # provide empty PATH environment variable so python is not found and execution of addon fails
    env = {'PATH': ''}
    _, _, stderr = cppcheck(args, env)
    assert stderr == '{}:0:0: error: Bailing out from analysis: Checking file failed: Failed to auto detect python [internalError]\n\n^\n'.format(test_file)


def test_execute_addon_failure_2(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
                void f();
                """)

    # specify non-existent python executbale so execution of addon fails
    args = ['--addon=naming', '--addon-python=python5.x', test_file]

    _, _, stderr = cppcheck(args)
    ec = 1 if os.name == 'nt' else 127
    assert stderr == "{}:0:0: error: Bailing out from analysis: Checking file failed: Failed to execute addon 'naming' - exitcode is {} [internalError]\n\n^\n".format(test_file, ec)


def test_execute_addon_file0(tmpdir):
    test_file = os.path.join(tmpdir, 'test.c')
    with open(test_file, 'wt') as f:
        f.write('void foo() {}\n')

    args = ['--xml', '--addon=misra', '--enable=style', test_file]

    _, _, stderr = cppcheck(args)
    assert 'misra-c2012-8.2' in stderr
    assert '.dump' not in stderr


# TODO: find a test case which always fails
@pytest.mark.skip
def test_internal_error(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
#include <cstdio>

void f() {
    double gc = 3333.3333;
    char stat[80];
    sprintf(stat,"'%2.1f'",gc);
}
                """)

    args = [test_file]

    _, _, stderr = cppcheck(args)
    assert stderr == '{}:0:0: error: Bailing from out analysis: Checking file failed: converting \'1f\' to integer failed - not an integer [internalError]\n\n^\n'.format(test_file)


def test_addon_misra(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
typedef int MISRA_5_6_VIOLATION;
        """)

    args = ['--addon=misra', '--enable=all', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == '{}:2:1: style: misra violation (use --rule-texts=<file> to get proper output) [misra-c2012-2.3]\ntypedef int MISRA_5_6_VIOLATION;\n^\n'.format(test_file)


def test_addon_y2038(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    # TODO: trigger warning
    with open(test_file, 'wt') as f:
        f.write("""
extern void f()
{
    time_t t = std::time(nullptr);
    (void)t;
}
        """)

    args = ['--addon=y2038', '--enable=all', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == '{}:4:21: warning: time is Y2038-unsafe [y2038-unsafe-call]\n'.format(test_file)


def test_addon_threadsafety(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
extern const char* f()
{
    return strerror(1);
}
        """)

    args = ['--addon=threadsafety', '--enable=all', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == '{}:4:12: warning: strerror is MT-unsafe [threadsafety-unsafe-call]\n'.format(test_file)


def test_addon_naming(tmpdir):
    # the addon does nothing without a config
    addon_file = os.path.join(tmpdir, 'naming1.json')
    with open(addon_file, 'wt') as f:
        f.write("""
{
    "script": "addons/naming.py",
    "args": [
        "--var=[_a-z].*"
    ]
}
                """)

    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
int Var;
        """)

    args = ['--addon={}'.format(addon_file), '--enable=all', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == '{}:2:1: style: Variable Var violates naming convention [naming-varname]\n'.format(test_file)


# the namingng addon only works standalone and not in CLI mode - see #12005
@pytest.mark.skip
def test_addon_namingng(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    # TODO: trigger warning
    with open(test_file, 'wt') as f:
        f.write("""
typedef int MISRA_5_6_VIOLATION;
        """)

    args = ['--addon=namingng', '--enable=all', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == ''


def test_addon_findcasts(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
        extern void f(char c)
        {
            int i = (int)c;
            (void)i;
        }
        """)

    args = ['--addon=findcasts', '--enable=all', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == '{}:4:21: information: found a cast [findcasts-cast]\n'.format(test_file)


def test_addon_misc(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
extern void f()
{
    char char* [] = {"a" "b"}
}
        """)

    args = ['--addon=misc', '--enable=all', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == '{}:4:26: style: String concatenation in array initialization, missing comma? [misc-stringConcatInArrayInit]\n'.format(test_file)


def test_invalid_addon_json(tmpdir):
    addon_file = os.path.join(tmpdir, 'addon1.json')
    with open(addon_file, 'wt') as f:
        f.write("""
                """)

    test_file = os.path.join(tmpdir, 'file.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
typedef int MISRA_5_6_VIOLATION;
                """)

    args = ['--addon={}'.format(addon_file), '--enable=all', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 1
    lines = stdout.splitlines()
    assert lines == [
        'Loading {} failed. syntax error at line 2 near: '.format(addon_file)
    ]
    assert stderr == ''


def test_invalid_addon_py(tmpdir):
    addon_file = os.path.join(tmpdir, 'addon1.py')
    with open(addon_file, 'wt') as f:
        f.write("""
raise Exception()
                """)

    test_file = os.path.join(tmpdir, 'file.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
typedef int MISRA_5_6_VIOLATION;
                """)

    args = ['--addon={}'.format(addon_file), '--enable=all', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0  # TODO: needs to be 1
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == "{}:0:0: error: Bailing out from analysis: Checking file failed: Failed to execute addon 'addon1' - exitcode is 1 [internalError]\n\n^\n".format(test_file)


def test_invalid_addon_py_verbose(tmpdir):
    addon_file = os.path.join(tmpdir, 'addon1.py')
    with open(addon_file, 'wt') as f:
        f.write("""
raise Exception()
                """)

    test_file = os.path.join(tmpdir, 'file.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
typedef int MISRA_5_6_VIOLATION;
                """)

    args = ['--addon={}'.format(addon_file), '--enable=all', '--verbose', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0  # TODO: needs to be 1
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file),
        'Defines:',
        'Undefines:',
        'Includes:',
        'Platform:native'
    ]
    """
/tmp/pytest-of-user/pytest-11/test_invalid_addon_py_20/file.cpp:0:0: error: Bailing out from analysis: Checking file failed: Failed to execute addon 'addon1' - exitcode is 1: python3 /home/user/CLionProjects/cppcheck/addons/runaddon.py /tmp/pytest-of-user/pytest-11/test_invalid_addon_py_20/addon1.py --cli /tmp/pytest-of-user/pytest-11/test_invalid_addon_py_20/file.cpp.24762.dump
Output:
Traceback (most recent call last):
  File "/home/user/CLionProjects/cppcheck/addons/runaddon.py", line 8, in <module>
    runpy.run_path(addon, run_name='__main__')
  File "<frozen runpy>", line 291, in run_path
  File "<frozen runpy>", line 98, in _run_module_code
  File "<frozen runpy>", line 88, in _run_code
  File "/tmp/pytest-of-user/pytest-11/test_invalid_addon_py_20/addon1.py", line 2, in <module>
    raise Exception()
Exceptio [internalError]
    """
    # /tmp/pytest-of-user/pytest-10/test_invalid_addon_py_20/file.cpp:0:0: error: Bailing out from analysis: Checking file failed: Failed to execute addon 'addon1' - exitcode is 256.: python3 /home/user/CLionProjects/cppcheck/addons/runaddon.py /tmp/pytest-of-user/pytest-10/test_invalid_addon_py_20/addon1.py --cli /tmp/pytest-of-user/pytest-10/test_invalid_addon_py_20/file.cpp.24637.dump
    assert stderr.startswith("{}:0:0: error: Bailing out from analysis: Checking file failed: Failed to execute addon 'addon1' - exitcode is 1: ".format(test_file))
    assert stderr.count('Output:\nTraceback')
    assert stderr.endswith('raise Exception()\nException [internalError]\n\n^\n')


def test_addon_result(tmpdir):
    addon_file = os.path.join(tmpdir, 'addon1.py')
    with open(addon_file, 'wt') as f:
        f.write("""
print("Checking ...")
print("")
print('{"file": "test.cpp", "linenr": 1, "column": 1, "severity": "style", "message": "msg", "addon": "addon1", "errorId": "id", "extra": ""}')
print('{"loc": [{"file": "test.cpp", "linenr": 1, "column": 1, "info": ""}], "severity": "style", "message": "msg", "addon": "addon1", "errorId": "id", "extra": ""}')
                """)

    test_file = os.path.join(tmpdir, 'file.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
typedef int MISRA_5_6_VIOLATION;
                """)

    args = ['--addon={}'.format(addon_file), '--enable=all', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0  # TODO: needs to be 1
    lines = stdout.splitlines()
    assert lines == [
        'Checking {} ...'.format(test_file)
    ]
    assert stderr == 'test.cpp:1:1: style: msg [addon1-id]\n\n^\n'


# #11483
def test_unused_function_include(tmpdir):
    test_cpp_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_cpp_file, 'wt') as f:
        f.write("""
                #include "test.h"
                """)

    test_h_file = os.path.join(tmpdir, 'test.h')
    with open(test_h_file, 'wt') as f:
        f.write("""
                class A {
                public:
                    void f() {}
                    // cppcheck-suppress unusedFunction
                    void f2() {}
                };
                """)

    args = ['--enable=unusedFunction', '--inline-suppr', '--template={file}:{line}:{column}: {severity}:{inconclusive:inconclusive:} {message} [{id}]', test_cpp_file]

    _, _, stderr = cppcheck(args)
    assert stderr == "{}:4:0: style: The function 'f' is never used. [unusedFunction]\n".format(test_h_file)


# TODO: test with -j and all other types
def test_showtime_top5_file(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        f.write("""
                int main(int argc)
                {
                }
                """)

    args = ['--showtime=top5_file', '--quiet', test_file]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0  # TODO: needs to be 1
    lines = stdout.splitlines()
    assert len(lines) == 7
    assert lines[0] == ''
    for i in range(1, 5):
        assert lines[i].endswith(' - 1 result(s))')
    assert lines[6].startswith('Overall time:')
    assert stderr == ''


def test_missing_addon(tmpdir):
    args = ['--addon=misra3', '--addon=misra', '--addon=misra2', 'file.c']

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 1
    lines = stdout.splitlines()
    lines.sort()
    assert lines == [
        'Did not find addon misra2.py',
        'Did not find addon misra3.py'
    ]
    assert stderr == ""


def test_file_filter(tmpdir):
    test_file = os.path.join(tmpdir, 'test.cpp')
    with open(test_file, 'wt') as f:
        pass

    args = ['--file-filter=*.cpp', test_file]
    out_lines = [
        'Checking {} ...'.format(test_file)
    ]

    assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)


def test_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

    args = ['--file-filter=*.cpp', test_file_1, test_file_2]
    out_lines = [
        'Checking {} ...'.format(test_file_1)
    ]

    assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)


def test_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

    args = ['--file-filter=*.c', test_file_1, test_file_2]
    out_lines = [
        'Checking {} ...'.format(test_file_2)
    ]

    assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)


def test_file_filter_no_match(tmpdir):
    args = ['--file-filter=*.c', 'test.cpp']
    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_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

    args = [test_file_c, test_file_d, test_file_b, test_file_a]

    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 == ''


def test_markup(tmpdir):
    test_file_1 = os.path.join(tmpdir, 'test_1.qml')
    with open(test_file_1, 'wt') as f:
        pass
    test_file_2 = os.path.join(tmpdir, 'test_2.cpp')
    with open(test_file_2, 'wt') as f:
        pass
    test_file_3 = os.path.join(tmpdir, 'test_3.qml')
    with open(test_file_3, 'wt') as f:
        pass
    test_file_4 = os.path.join(tmpdir, 'test_4.cpp')
    with open(test_file_4, 'wt') as f:
        pass

    args = ['--library=qt', test_file_1, test_file_2, test_file_3, test_file_4]
    out_lines = [
        'Checking {} ...'.format(test_file_2),
        '1/4 files checked 0% done',
        'Checking {} ...'.format(test_file_4),
        '2/4 files checked 0% done',
        'Checking {} ...'.format(test_file_1),
        '3/4 files checked 0% done',
        'Checking {} ...'.format(test_file_3),
        '4/4 files checked 0% done'
    ]

    assert_cppcheck(args, ec_exp=0, err_exp=[], out_exp=out_lines)


def test_markup_j(tmpdir):
    test_file_1 = os.path.join(tmpdir, 'test_1.qml')
    with open(test_file_1, 'wt') as f:
        pass
    test_file_2 = os.path.join(tmpdir, 'test_2.cpp')
    with open(test_file_2, 'wt') as f:
        pass
    test_file_3 = os.path.join(tmpdir, 'test_3.qml')
    with open(test_file_3, 'wt') as f:
        pass
    test_file_4 = os.path.join(tmpdir, 'test_4.cpp')
    with open(test_file_4, 'wt') as f:
        pass

    args = ['--library=qt', test_file_1, test_file_2, test_file_3, test_file_4]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    lines = stdout.splitlines()
    for i in range(1, 5):
        lines.remove('{}/4 files checked 0% done'.format(i))

    assert lines == [
        'Checking {} ...'.format(test_file_2),
        'Checking {} ...'.format(test_file_4),
        'Checking {} ...'.format(test_file_1),
        'Checking {} ...'.format(test_file_3)
    ]
    assert stderr == ''


def test_valueflow_debug(tmpdir):
    test_file_cpp = os.path.join(tmpdir, 'test_1.cpp')
    with open(test_file_cpp, 'wt') as f:
        f.write("""
#include "test.h"

void f()
{
    int i = 0;
}
"""
                )
    test_file_h = os.path.join(tmpdir, 'test.h')
    with open(test_file_h, 'wt') as f:
        f.write("""
#include "test2.h"
inline void f1()
{
    int i = 0;
}
"""
                )
        pass
    test_file_h_2 = os.path.join(tmpdir, 'test2.h')
    with open(test_file_h_2, 'wt') as f:
        f.write("""
inline void f2()
{
    int i = 0;
}
"""
                )

    args = ['--debug', test_file_cpp]

    exitcode, stdout, stderr = cppcheck(args)
    assert exitcode == 0
    if sys.platform == "win32":
        stdout = stdout.replace('/', '\\')
    assert stdout == '''Checking {} ...


##file {}
2: void f2 ( )
3: {{
4: int i@var1 ; i@var1 = 0 ;
5: }}

##file {}

1:
2:
3: void f1 ( )
4: {{
5: int i@var2 ; i@var2 = 0 ;
6: }}

##file {}

1:
2:
3:
4: void f ( )
5: {{
6: int i@var3 ; i@var3 = 0 ;
7: }}



##Value flow
File {}
Line 4
  = always 0
  0 always 0
File {}
Line 5
  = always 0
  0 always 0
File {}
Line 6
  = always 0
  0 always 0
'''.format(test_file_cpp, test_file_h_2, test_file_h, test_file_cpp, test_file_h_2, test_file_h, test_file_cpp)
    assert stderr == ''