diff --git a/test/cli/inline-suppress_test.py b/test/cli/inline-suppress_test.py
index f443896321c..8d9d18fc722 100644
--- a/test/cli/inline-suppress_test.py
+++ b/test/cli/inline-suppress_test.py
@@ -3,98 +3,110 @@
 
 import json
 import os
-import tempfile
 from testutils import cppcheck
 
-def create_unused_function_compile_commands():
-    prjpath = os.path.realpath('proj-inline-suppress-unusedFunction')
-    compile_commands = os.path.join(prjpath, 'compile_commands.json')
+__script_dir = os.path.dirname(os.path.abspath(__file__))
+
+
+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 test1():
-    ret, stdout, stderr = cppcheck(['--inline-suppr', 'proj-inline-suppress'])
-    assert ret == 0, stdout
+    ret, stdout, stderr = cppcheck(['--inline-suppr', 'proj-inline-suppress'], cwd=__script_dir)
     assert stderr == ''
+    assert ret == 0, stdout
+
 
 def test2():
-    ret, stdout, stderr = cppcheck(['proj-inline-suppress'])
+    ret, stdout, stderr = cppcheck(['proj-inline-suppress'], cwd=__script_dir)
+    assert len(stderr) > 0, stderr
     assert ret == 0, stdout
-    assert len(stderr) > 0
+
 
 def test_unmatched_suppression():
-    ret, stdout, stderr = cppcheck(['--inline-suppr', '--enable=information', '--error-exitcode=1', 'proj-inline-suppress/2.c'])
-    assert ret == 1
+    ret, stdout, stderr = cppcheck(['--inline-suppr', '--enable=information', '--error-exitcode=1', 'proj-inline-suppress/2.c'], cwd=__script_dir)
     assert 'Unmatched suppression: some_warning_id' in stderr
+    assert ret == 1, stdout
 
-def test_unmatched_suppression_path_with_extra_stuf():
-    ret, stdout, stderr = cppcheck(['--inline-suppr', '--enable=information', '--error-exitcode=1', './proj-inline-suppress/2.c'])
-    assert ret == 1
+
+def test_unmatched_suppression_path_with_extra_stuff():
+    ret, stdout, stderr = cppcheck(['--inline-suppr', '--enable=information', '--error-exitcode=1', './proj-inline-suppress/2.c'], cwd=__script_dir)
     assert 'Unmatched suppression: some_warning_id' in stderr
+    assert ret == 1, stdout
+
 
 def test_backwards_compatibility():
-    ret, stdout, stderr = cppcheck(['proj-inline-suppress/3.cpp'])
+    ret, stdout, stderr = cppcheck(['proj-inline-suppress/3.cpp'], cwd=__script_dir)
     assert '[zerodiv]' in stderr
-
-    ret, stdout, stderr = cppcheck(['--inline-suppr', 'proj-inline-suppress/3.cpp'])
     assert ret == 0, stdout
+
+    ret, stdout, stderr = cppcheck(['--inline-suppr', 'proj-inline-suppress/3.cpp'], cwd=__script_dir)
     assert stderr == ''
+    assert ret == 0, stdout
+
 
-def test_compile_commands_unused_function():
-    create_unused_function_compile_commands()
-    ret, stdout, stderr = cppcheck(['--enable=all', '--error-exitcode=1', '--project=./proj-inline-suppress-unusedFunction/compile_commands.json'])
-    assert ret == 1
+def test_compile_commands_unused_function(tmpdir):
+    compdb_file = create_unused_function_compile_commands(tmpdir)
+    ret, stdout, stderr = cppcheck(['--enable=all', '--error-exitcode=1', '--project={}'.format(compdb_file)])
     assert 'unusedFunction' in stderr
+    assert ret == 1, stdout
 
-def test_compile_commands_unused_function_suppression():
-    create_unused_function_compile_commands()
-    ret, stdout, stderr = cppcheck(['--enable=all', '--inline-suppr', '--error-exitcode=1', '--project=./proj-inline-suppress-unusedFunction/compile_commands.json'])
-    assert ret == 0, stdout
+
+def test_compile_commands_unused_function_suppression(tmpdir):
+    compdb_file = create_unused_function_compile_commands(tmpdir)
+    ret, stdout, stderr = cppcheck(['--enable=all', '--inline-suppr', '--error-exitcode=1', '--project={}'.format(compdb_file)])
     assert 'unusedFunction' not in stderr
+    assert ret == 0, stdout
 
 
 def test_unmatched_suppression_ifdef():
-    ret, stdout, stderr = cppcheck(['--enable=all', '--suppress=missingIncludeSystem', '--inline-suppr', '-DNO_ZERO_DIV', 'trac5704/trac5704a.c'])
-    assert ret == 0, stdout
+    ret, stdout, stderr = cppcheck(['--enable=all', '--suppress=missingIncludeSystem', '--inline-suppr', '-DNO_ZERO_DIV', 'trac5704/trac5704a.c'], cwd=__script_dir)
     assert 'unmatchedSuppression' not in stderr
+    assert ret == 0, stdout
 
 
 def test_unmatched_suppression_ifdef_0():
-    ret, stdout, stderr = cppcheck(['--enable=all', '--suppress=missingIncludeSystem', '--inline-suppr', 'trac5704/trac5704b.c'])
-    assert ret == 0, stdout
+    ret, stdout, stderr = cppcheck(['--enable=all', '--suppress=missingIncludeSystem', '--inline-suppr', 'trac5704/trac5704b.c'], cwd=__script_dir)
     assert 'unmatchedSuppression' not in stderr
+    assert ret == 0, stdout
 
 
-def test_build_dir():
-    with tempfile.TemporaryDirectory() as tempdir:
-        args = f'--cppcheck-build-dir={tempdir} --enable=all --inline-suppr proj-inline-suppress/4.c'.split()
+def test_build_dir(tmpdir):
+    args = f'--cppcheck-build-dir={tmpdir} --enable=all --inline-suppr proj-inline-suppress/4.c'.split()
 
-        ret, stdout, stderr = cppcheck(args)
-        assert ret == 0, stdout
-        assert len(stderr) == 0
+    ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
+    assert len(stderr) == 0, stderr
+    assert ret == 0, stdout
+
+    ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
+    assert len(stderr) == 0, stderr
+    assert ret == 0, stdout
 
-        ret, stdout, stderr = cppcheck(args)
-        assert ret == 0, stdout
-        assert len(stderr) == 0
 
-def test_build_dir_unused_template():
-    with tempfile.TemporaryDirectory() as tempdir:
-        args = f'--cppcheck-build-dir={tempdir} --enable=all --inline-suppr proj-inline-suppress/template.cpp'.split()
+def test_build_dir_unused_template(tmpdir):
+    args = f'--cppcheck-build-dir={tmpdir} --enable=all --inline-suppr proj-inline-suppress/template.cpp'.split()
 
-        ret, stdout, stderr = cppcheck(args)
-        assert ret == 0, stdout
-        assert len(stderr) == 0
+    ret, stdout, stderr = cppcheck(args, cwd=__script_dir)
+    assert len(stderr) == 0, stderr
+    assert ret == 0, stdout
 
 
 def test_suppress_unmatched_inline_suppression(): # 11172
-    ret, stdout, stderr = cppcheck(['--enable=all', '--suppress=unmatchedSuppression', '--inline-suppr', 'proj-inline-suppress/2.c'])
-    assert ret == 0, stdout
+    ret, stdout, stderr = cppcheck(['--enable=all', '--suppress=unmatchedSuppression', '--inline-suppr', 'proj-inline-suppress/2.c'], cwd=__script_dir)
     assert 'unmatchedSuppression' not in stderr
+    assert ret == 0, stdout
 
 
diff --git a/test/cli/testutils.py b/test/cli/testutils.py
index a27900a0e87..25712346aef 100644
--- a/test/cli/testutils.py
+++ b/test/cli/testutils.py
@@ -66,17 +66,18 @@ def __lookup_cppcheck_exe():
                 break
 
     if exe_path:
+        exe_path = os.path.abspath(exe_path)
         print("using '{}'".format(exe_path))
     return exe_path
 
 
 # Run Cppcheck with args
-def cppcheck(args, env=None, remove_checkers_report=True):
+def cppcheck(args, env=None, remove_checkers_report=True, cwd=None):
     exe = __lookup_cppcheck_exe()
     assert exe is not None, 'no cppcheck binary found'
 
     logging.info(exe + ' ' + ' '.join(args))
-    p = subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env)
+    p = subprocess.Popen([exe] + args, stdout=subprocess.PIPE, stderr=subprocess.PIPE, env=env, cwd=cwd)
     comm = p.communicate()
     stdout = comm[0].decode(encoding='utf-8', errors='ignore').replace('\r\n', '\n')
     stderr = comm[1].decode(encoding='utf-8', errors='ignore').replace('\r\n', '\n')