From cc74b0cc4f5ace50be8ee0a6e0e42db33044839e Mon Sep 17 00:00:00 2001
From: Virginia Cepeda <virginia.cepeda@grafana.com>
Date: Wed, 11 Feb 2026 12:19:58 -0300
Subject: [PATCH] fix: normalize empty alertSensitivity from API to none

---
 src/datasource/DataSource.test.ts | 22 ++++++++++++++++++++++
 src/datasource/DataSource.ts      | 10 ++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/src/datasource/DataSource.test.ts b/src/datasource/DataSource.test.ts
index f37707b68..a3da544dc 100644
--- a/src/datasource/DataSource.test.ts
+++ b/src/datasource/DataSource.test.ts
@@ -6,6 +6,7 @@ import { PRIVATE_PROBE } from 'test/fixtures/probes';
 import { apiRoute, ApiRoutes, getServerRequests } from 'test/handlers';
 import { server } from 'test/server';
 
+import { AlertSensitivity } from 'types';
 import { SMDataSource } from 'datasource/DataSource';
 
 type Entry = {
@@ -256,4 +257,25 @@ describe('SMDataSource', () => {
       expect(result?.uid).toEqual('grafanacloud-metrics');
     });
   });
+
+  describe('listChecks', () => {
+    it('should normalize empty alertSensitivity to AlertSensitivity.None', async () => {
+      const checkWithEmptySensitivity = { ...BASIC_HTTP_CHECK, alertSensitivity: '' };
+      const checkWithSetSensitivity = { ...BASIC_HTTP_CHECK, alertSensitivity: AlertSensitivity.Medium };
+
+      server.use(
+        apiRoute('listChecks', {
+          result: () => ({
+            json: [checkWithEmptySensitivity, checkWithSetSensitivity],
+          }),
+        })
+      );
+
+      const smDataSource = new SMDataSource(SM_DATASOURCE);
+      const result = await smDataSource.listChecks();
+
+      expect(result[0].alertSensitivity).toEqual(AlertSensitivity.None);
+      expect(result[1].alertSensitivity).toEqual(AlertSensitivity.Medium);
+    });
+  });
 });
diff --git a/src/datasource/DataSource.ts b/src/datasource/DataSource.ts
index f650295f3..b1a6d1b55 100644
--- a/src/datasource/DataSource.ts
+++ b/src/datasource/DataSource.ts
@@ -12,7 +12,7 @@ import { BackendSrvRequest, getBackendSrv, getTemplateSrv } from '@grafana/runti
 import { isArray } from 'lodash';
 import { firstValueFrom } from 'rxjs';
 
-import { Check, CheckAlertDraft, ListChannelsResponse, Probe, ThresholdSettings } from '../types';
+import { AlertSensitivity, Check, CheckAlertDraft, ListChannelsResponse, Probe, ThresholdSettings } from '../types';
 import {
   AccessTokenResponse,
   AddCheckResult,
@@ -311,7 +311,13 @@ export class SMDataSource extends DataSourceApi<SMQuery, SMOptions> {
   }
 
   async listChecks(includeAlerts = false) {
-    return this.fetchAPI<ListCheckResult>(`${this.instanceSettings.url}/sm/check/list?includeAlerts=${includeAlerts}`);
+    return this.fetchAPI<ListCheckResult>(
+      `${this.instanceSettings.url}/sm/check/list?includeAlerts=${includeAlerts}`
+    ).then((checks) =>
+      checks.map((check) =>
+        check.alertSensitivity ? check : { ...check, alertSensitivity: AlertSensitivity.None }
+      )
+    );
   }
 
   async testCheck(check: Check) {