Correct checking instance type of get data response

elastic/CHANGELOG.md

@@ -4,6 +4,7 @@
 
 ***Fixed***:
 
+* Correct checking instance type of get data response ([#15554](https://github.com/DataDog/integrations-core/pull/15554))
 * Avoid collecting template metrics on unsupported ES versions. ([#15550](https://github.com/DataDog/integrations-core/pull/15550))
 
 ## 6.0.0 / 2023-08-10

elastic/datadog_checks/elastic/elastic.py

@@ -338,7 +338,7 @@ def _get_data(self, url, send_sc=True, data=None):
             resp.raise_for_status()
         except Exception as e:
             # this means we've hit a particular kind of auth error that means the config is broken
-            if resp and resp.status_code == 400:
+            if isinstance(resp, requests.Response) and resp.status_code == 400:
                 raise AuthenticationError("The ElasticSearch credentials are incorrect")
 
             if send_sc:

elastic/tests/test_unit.py

@@ -9,7 +9,7 @@
 from datadog_checks.base import ConfigurationError
 from datadog_checks.dev.http import MockResponse
 from datadog_checks.elastic import ESCheck
-from datadog_checks.elastic.elastic import get_value_from_path
+from datadog_checks.elastic.elastic import AuthenticationError, get_value_from_path
 
 from .common import URL, get_fixture_path
 
@@ -147,6 +147,35 @@ def test_get_value_from_path():
     assert value == "foo"
 
 
+def test__get_data_throws_authentication_error(instance):
+    with mock.patch(
+        'requests.get',
+        return_value=MockResponse(status_code=400),
+    ):
+        check = ESCheck('elastic', {}, instances=[instance])
+
+        with pytest.raises(AuthenticationError):
+            check._get_data(url='test.com')
+
+
+def test__get_data_creates_critical_service_alert(aggregator, instance):
+    with mock.patch(
+        'requests.get',
+        return_value=MockResponse(status_code=500),
+    ):
+        check = ESCheck('elastic', {}, instances=[instance])
+
+        with pytest.raises(Exception):
+            check._get_data(url='test.com')
+
+        aggregator.assert_service_check(
+            check.SERVICE_CHECK_CONNECT_NAME,
+            status=check.CRITICAL,
+            tags=check._config.service_check_tags,
+            message="Error 500 Server Error: None for url: None when hitting test.com",
+        )
+
+
 @pytest.mark.parametrize(
     'version, return_value',
     [