diff --git a/tests/unit/assets/test_assets_unit.py b/tests/unit/assets/test_assets_unit.py
index 0905cb6..63bc90d 100644
--- a/tests/unit/assets/test_assets_unit.py
+++ b/tests/unit/assets/test_assets_unit.py
@@ -253,4 +253,81 @@ def test_delete_folder(self):
         response = self.client.stack(api_key).assets().delete_folder(folder_uid)
         self.assertEqual(response.request.url, f"{self.client.endpoint}assets/folders/{folder_uid}")
         self.assertEqual(response.request.method, "DELETE")
-        self.assertEqual(response.request.headers["Content-Type"], "application/json")
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+        self.assertEqual(response.request.headers["Content-Type"], "application/json")
+
+    # Asset scanning tests — _asset_scan_status param and api_version header
+
+    def test_fetch_includes_scan_status_param(self):
+        asset = self.client.stack(api_key).assets(asset_uid)
+        asset.add_param("_asset_scan_status", True)
+        response = asset.fetch()
+        self.assertIn("_asset_scan_status=True", response.request.url)
+        self.assertEqual(response.request.method, "GET")
+
+    def test_find_includes_scan_status_param(self):
+        asset = self.client.stack(api_key).assets()
+        asset.add_param("_asset_scan_status", True)
+        response = asset.find()
+        self.assertIn("_asset_scan_status=True", response.request.url)
+        self.assertEqual(response.request.method, "GET")
+
+    def test_upload_includes_scan_status_param(self):
+        file_path = "tests/resources/mock_assets/chaat.jpeg"
+        asset = self.client.stack(api_key).assets()
+        asset.add_param("_asset_scan_status", True)
+        response = asset.upload(file_path)
+        self.assertIn("_asset_scan_status=True", response.request.url)
+        self.assertEqual(response.request.method, "POST")
+
+    def test_fetch_without_scan_status_param_field_absent(self):
+        response = self.client.stack(api_key).assets(asset_uid).fetch()
+        self.assertNotIn("_asset_scan_status", response.request.url)
+        self.assertEqual(response.request.method, "GET")
+
+    def test_find_without_scan_status_param_field_absent(self):
+        response = self.client.stack(api_key).assets().find()
+        self.assertNotIn("_asset_scan_status", response.request.url)
+        self.assertEqual(response.request.method, "GET")
+
+    def test_upload_without_scan_status_param_field_absent(self):
+        file_path = "tests/resources/mock_assets/chaat.jpeg"
+        response = self.client.stack(api_key).assets().upload(file_path)
+        self.assertNotIn("_asset_scan_status", response.request.url)
+        self.assertEqual(response.request.method, "POST")
+
+    def test_scan_status_param_coexists_with_other_params(self):
+        asset = self.client.stack(api_key).assets(asset_uid)
+        asset.add_param("locale", "en-us")
+        asset.add_param("_asset_scan_status", True)
+        response = asset.fetch()
+        self.assertIn("locale=en-us", response.request.url)
+        self.assertIn("_asset_scan_status=True", response.request.url)
+        self.assertEqual(response.request.method, "GET")
+
+    def test_publish_includes_api_version_header(self):
+        data = {
+            "asset": {
+                "locales": ["en-us"],
+                "environments": ["development"]
+            },
+            "version": 1,
+            "scheduled_at": "2019-02-08T18:30:00.000Z"
+        }
+        asset = self.client.stack(api_key).assets(asset_uid)
+        asset.add_header("api_version", "3.2")
+        response = asset.publish(data)
+        self.assertEqual(response.request.headers.get("api_version"), "3.2")
+        self.assertEqual(response.request.method, "POST")
+
+    def test_api_version_header_scoped_to_publish(self):
+        data = {
+            "asset": {
+                "locales": ["en-us"],
+                "environments": ["development"]
+            },
+            "version": 1,
+            "scheduled_at": "2019-02-08T18:30:00.000Z"
+        }
+        response = self.client.stack(api_key).assets(asset_uid).publish(data)
+        self.assertIsNone(response.request.headers.get("api_version"))
+        self.assertEqual(response.request.method, "POST")
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