Fixed error when sarif file option is provided

.github/workflows/tox.yml

@@ -61,7 +61,7 @@ jobs:
       WSLENV: FORCE_COLOR:PYTEST_REQPASS:TOXENV:GITHUB_STEP_SUMMARY
       # Number of expected test passes, safety measure for accidental skip of
       # tests. Update value if you add/remove tests.
-      PYTEST_REQPASS: 804
+      PYTEST_REQPASS: 805
     steps:
       - name: Activate WSL1
         if: "contains(matrix.shell, 'wsl')"

src/ansiblelint/app.py

@@ -103,7 +103,11 @@ def render_matches(self, matches: list[MatchError]) -> None:
         if self.options.sarif_file:
             sarif = formatters.SarifFormatter(self.options.cwd, True)
             json = sarif.format_result(matches)
-            with self.options.sarif_file.open("w", encoding="utf-8") as sarif_file:
+            with Path.open(
+                self.options.sarif_file,
+                "w",
+                encoding="utf-8",
+            ) as sarif_file:
                 sarif_file.write(json)
 
     def count_results(self, matches: list[MatchError]) -> SummarizedResults:

test/test_formatter_sarif.py

@@ -169,3 +169,24 @@ def test_sarif_file(file: str, return_code: int) -> None:
         assert result.returncode == return_code
         assert os.path.exists(output_file.name)  # noqa: PTH110
         assert os.path.getsize(output_file.name) > 0
+
+
+@pytest.mark.parametrize(
+    ("file", "return_code"),
+    (pytest.param("examples/playbooks/valid.yml", 0),),
+)
+def test_sarif_file_creates_it_if_none_exists(file: str, return_code: int) -> None:
+    """Test ability to create sarif file if none exists and dump output to it (--sarif-file)."""
+    sarif_file_name = "test_output.sarif"
+    cmd = [
+        sys.executable,
+        "-m",
+        "ansiblelint",
+        "--sarif-file",
+        sarif_file_name,
+    ]
+    result = subprocess.run([*cmd, file], check=False, capture_output=True)
+    assert result.returncode == return_code
+    assert os.path.exists(sarif_file_name)  # noqa: PTH110
+    assert os.path.getsize(sarif_file_name) > 0
+    os.remove(sarif_file_name)