Add iOS sysdiagnose checking

tests/test_check_ios_sysdiagnose.py

@@ -0,0 +1,57 @@
+from click.testing import CliRunner
+
+from mvt.ios.cli import check_sysdiagnose
+
+
+CUSTOM_MODULE = """
+from mvt.ios.modules.sysdiagnose import SysdiagnoseExtraction
+
+
+class CustomSysdiagnoseModule(SysdiagnoseExtraction):
+    supported_commands = (("ios", "check-sysdiagnose"),)
+    slug = "custom_sysdiagnose_module"
+
+    def run(self):
+        file_path = self._get_files_by_pattern("*/artifact.txt")[0]
+        self.results = [{"content": self._get_file_content(file_path).decode("utf-8")}]
+
+    def check_indicators(self):
+        pass
+
+    def serialize(self, result):
+        return None
+"""
+
+
+def _create_sysdiagnose_folder(tmp_path):
+    folder = tmp_path / "sysdiagnose"
+    folder.mkdir()
+    (folder / "artifact.txt").write_text("artifact", encoding="utf-8")
+    return folder
+
+
+def test_check_sysdiagnose_runs_explicitly_scoped_custom_module(tmp_path):
+    module_path = tmp_path / "custom_sysdiagnose.py"
+    module_path.write_text(CUSTOM_MODULE, encoding="utf-8")
+    output_path = tmp_path / "output"
+
+    result = CliRunner().invoke(
+        check_sysdiagnose,
+        [
+            "--load-module",
+            str(module_path),
+            "--output",
+            str(output_path),
+            str(_create_sysdiagnose_folder(tmp_path)),
+        ],
+    )
+
+    assert result.exit_code == 0
+    assert (output_path / "custom_sysdiagnose_module.json").exists()
+
+
+def test_check_sysdiagnose_requires_an_explicitly_scoped_module(tmp_path):
+    result = CliRunner().invoke(check_sysdiagnose, [str(_create_sysdiagnose_folder(tmp_path))])
+
+    assert result.exit_code != 0
+    assert "No custom modules support mvt-ios check-sysdiagnose" in result.output