add fixture

tests/test_clang_tidy.py

@@ -5,15 +5,21 @@
 from cpp_linter_hooks.clang_tidy import run_clang_tidy
 
 
+@pytest.fixture(scope='function')
+def generate_compilation_database():
+    # Generate compilation database
+    subprocess.run(['mkdir', '-p', 'build', '&&', 'cmake', '-Bbuild', 'testing/'], shell=True)
+
+
 @pytest.mark.parametrize(
     ('args', 'expected_retval'), (
         (['--checks="boost-*"'], 1),
         (['--checks="boost-*"', '--version=16'], 1),
     ),
 )
-def test_run_clang_tidy_valid(args, expected_retval, tmp_path):
-    subprocess.run(['mkdir', '-p', 'build', '&&', 'cmake', '-Bbuild', 'testing/'], shell=True)
+def test_run_clang_tidy_valid(args, expected_retval, tmp_path, generate_compilation_database):
     # copy test file to tmp_path to prevent modifying repo data
+    generate_compilation_database
     test_file = tmp_path / "main.c"
     test_file.write_bytes(Path("testing/main.c").read_bytes())
     ret, output = run_clang_tidy(args + [str(test_file)])

tests/test_util.py

@@ -33,7 +33,7 @@ def test_ensure_installed(tool, version, tmp_path, monkeypatch, caplog):
             # first run should install
             assert caplog.record_tuples[0][2] == f"Checking for {tool}, version {bin_version}"
             if run == 0:
-                # FIXME 
+                # FIXME
                 # assert caplog.record_tuples[1][2] == f"Installing {tool}, version {bin_version}"
                 assert caplog.record_tuples[1][2] == f"{tool}, version {bin_version} is already installed"
             # second run should just confirm it's already installed