[8.x] [Fleet] Fix flaky agentless test (#197951) (#198053)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Fleet] Fix flaky agentless test
(#197951)](#197951)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Cristina
Amico","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-10-28T16:57:10Z","message":"[Fleet]
Fix flaky agentless test (#197951)\n\nFixes
https://github.com/elastic/kibana/issues/189038\r\n\r\n##
Summary\r\n\r\nAttempt to fix [this flaky
test\r\n](https://buildkite.com/elastic/kibana-on-merge/builds/53472#0192c57d-51ca-4b9b-a934-dc13b0b9b7ca)\r\nfailing
with\r\n```\r\n\r\nTimed out in waitForNextUpdate after
1000ms.\r\n--\r\n  |  \r\n  | at waitForNextUpdate
(node_modules/@testing-library/react-hooks/lib/core/asyncUtils.js:96:13)\r\n\r\n```\r\nI'm
adding a longer timeout hoping to resolve this issue. There is no\r\nway
to run jest tests with flaky test runner so I'm not sure how
to\r\nverify that the flakiness is really
gone.\r\n\r\n---------\r\n\r\nCo-authored-by: Elastic Machine
<[email protected]>","sha":"a5db34b2f58888913ae1bb433803b9999df7a739","branchLabelMapping":{"^v9.0.0$":"main","^v8.17.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","Team:Fleet","v9.0.0","backport:prev-minor"],"title":"[Fleet]
Fix flaky agentless
test","number":197951,"url":"https://github.com/elastic/kibana/pull/197951","mergeCommit":{"message":"[Fleet]
Fix flaky agentless test (#197951)\n\nFixes
https://github.com/elastic/kibana/issues/189038\r\n\r\n##
Summary\r\n\r\nAttempt to fix [this flaky
test\r\n](https://buildkite.com/elastic/kibana-on-merge/builds/53472#0192c57d-51ca-4b9b-a934-dc13b0b9b7ca)\r\nfailing
with\r\n```\r\n\r\nTimed out in waitForNextUpdate after
1000ms.\r\n--\r\n  |  \r\n  | at waitForNextUpdate
(node_modules/@testing-library/react-hooks/lib/core/asyncUtils.js:96:13)\r\n\r\n```\r\nI'm
adding a longer timeout hoping to resolve this issue. There is no\r\nway
to run jest tests with flaky test runner so I'm not sure how
to\r\nverify that the flakiness is really
gone.\r\n\r\n---------\r\n\r\nCo-authored-by: Elastic Machine
<[email protected]>","sha":"a5db34b2f58888913ae1bb433803b9999df7a739"}},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/197951","number":197951,"mergeCommit":{"message":"[Fleet]
Fix flaky agentless test (#197951)\n\nFixes
https://github.com/elastic/kibana/issues/189038\r\n\r\n##
Summary\r\n\r\nAttempt to fix [this flaky
test\r\n](https://buildkite.com/elastic/kibana-on-merge/builds/53472#0192c57d-51ca-4b9b-a934-dc13b0b9b7ca)\r\nfailing
with\r\n```\r\n\r\nTimed out in waitForNextUpdate after
1000ms.\r\n--\r\n  |  \r\n  | at waitForNextUpdate
(node_modules/@testing-library/react-hooks/lib/core/asyncUtils.js:96:13)\r\n\r\n```\r\nI'm
adding a longer timeout hoping to resolve this issue. There is no\r\nway
to run jest tests with flaky test runner so I'm not sure how
to\r\nverify that the flakiness is really
gone.\r\n\r\n---------\r\n\r\nCo-authored-by: Elastic Machine
<[email protected]>","sha":"a5db34b2f58888913ae1bb433803b9999df7a739"}}]}]
BACKPORT-->

Co-authored-by: Cristina Amico <[email protected]>

x-pack/plugins/fleet/public/applications/fleet/sections/agent_policy/create_package_policy_page/single_page_layout/hooks/setup_technology.test.ts

@@ -520,7 +520,7 @@ describe('useSetupTechnology', () => {
   });
 
   it('should revert the agent policy name to the original value when switching from agentless back to agent-based', async () => {
-    const { result, waitForNextUpdate } = renderHook(() =>
+    const { result, rerender } = renderHook(() =>
       useSetupTechnology({
         setNewAgentPolicy,
         newAgentPolicy: newAgentPolicyMock,
@@ -529,8 +529,7 @@ describe('useSetupTechnology', () => {
         packagePolicy: packagePolicyMock,
       })
     );
-
-    await waitForNextUpdate();
+    await rerender();
 
     expect(result.current.selectedSetupTechnology).toBe(SetupTechnology.AGENT_BASED);
 
@@ -539,21 +538,17 @@ describe('useSetupTechnology', () => {
     });
 
     expect(result.current.selectedSetupTechnology).toBe(SetupTechnology.AGENTLESS);
-
-    waitFor(() => {
-      expect(setNewAgentPolicy).toHaveBeenCalledWith({
-        name: 'Agentless policy for endpoint-1',
-        supports_agentless: true,
-        inactivity_timeout: 3600,
-      });
+    expect(setNewAgentPolicy).toHaveBeenCalledWith({
+      id: 'agentless-policy-id',
     });
 
     act(() => {
       result.current.handleSetupTechnologyChange(SetupTechnology.AGENT_BASED);
     });
-
-    expect(result.current.selectedSetupTechnology).toBe(SetupTechnology.AGENT_BASED);
-    expect(setNewAgentPolicy).toHaveBeenCalledWith(newAgentPolicyMock);
+    await waitFor(() => {
+      expect(result.current.selectedSetupTechnology).toBe(SetupTechnology.AGENT_BASED);
+      expect(setNewAgentPolicy).toHaveBeenCalledWith(newAgentPolicyMock);
+    });
   });
 
   it('should have global_data_tags with the integration team when updating the agentless policy', async () => {

x-pack/plugins/fleet/public/mock/create_test_renderer.tsx

@@ -59,7 +59,17 @@ export interface TestRenderer {
   setHeaderActionMenu: Function;
 }
 
-const queryClient = new QueryClient();
+// disable retries to avoid test flakiness
+const queryClient = new QueryClient({
+  defaultOptions: {
+    queries: {
+      retry: false,
+    },
+    mutations: {
+      retry: false,
+    },
+  },
+});
 
 export const createFleetTestRendererMock = (): TestRenderer => {
   const basePath = '/mock';