diff --git a/x-pack/plugins/security_solution/public/common/mock/endpoint/app_context_render.tsx b/x-pack/plugins/security_solution/public/common/mock/endpoint/app_context_render.tsx
index d96929ec183d8d..3e582ee9b20c8e 100644
--- a/x-pack/plugins/security_solution/public/common/mock/endpoint/app_context_render.tsx
+++ b/x-pack/plugins/security_solution/public/common/mock/endpoint/app_context_render.tsx
@@ -22,8 +22,9 @@ import { SUB_PLUGINS_REDUCER, mockGlobalState, createSecuritySolutionStorageMock
 import { ExperimentalFeatures } from '../../../../common/experimental_features';
 import { PLUGIN_ID } from '../../../../../fleet/common';
 import { APP_ID } from '../../../../common/constants';
-import { KibanaContextProvider } from '../../lib/kibana';
+import { KibanaContextProvider, KibanaServices } from '../../lib/kibana';
 import { MANAGEMENT_APP_ID } from '../../../management/common/constants';
+import { fleetGetPackageListHttpMock } from '../../../management/pages/endpoint_hosts/mocks';
 
 type UiRender = (ui: React.ReactElement, options?: RenderOptions) => RenderResult;
 
@@ -120,6 +121,7 @@ export const createAppRootMockRenderer = (): AppContextTestRender => {
       </AppRootProvider>
     </KibanaContextProvider>
   );
+
   const render: UiRender = (ui, options) => {
     return reactRender(ui, {
       wrapper: AppWrapper as React.ComponentType,
@@ -134,6 +136,23 @@ export const createAppRootMockRenderer = (): AppContextTestRender => {
     });
   };
 
+  // Initialize the singleton `KibanaServices` with global services created for this test instance.
+  // The module (`../../lib/kibana`) could have been mocked at the test level via `jest.mock()`,
+  // and if so, then we set the return value of `KibanaServices.get` instead of calling `KibanaServices.init()`
+  const globalKibanaServicesParams = {
+    ...startServices,
+    kibanaVersion: '8.0.0',
+  };
+
+  if (jest.isMockFunction(KibanaServices.get)) {
+    (KibanaServices.get as jest.Mock).mockReturnValue(globalKibanaServicesParams);
+  } else {
+    KibanaServices.init(globalKibanaServicesParams);
+  }
+
+  // Some APIs need to be mocked right from the start because they are called as soon as the store is initialized
+  applyDefaultCoreHttpMocks(coreStart.http);
+
   return {
     store,
     history,
@@ -166,3 +185,10 @@ const createCoreStartMock = (): ReturnType<typeof coreMock.createStart> => {
 
   return coreStart;
 };
+
+const applyDefaultCoreHttpMocks = (http: AppContextTestRender['coreStart']['http']) => {
+  // Need to mock getting the endpoint package from the fleet API because it is used as soon
+  // as the store middleware for Endpoint list is initialized, thus mocking it here would avoid
+  // unnecessary errors being output to the console
+  fleetGetPackageListHttpMock(http, { ignoreUnMockedApiRouteErrors: true });
+};
diff --git a/x-pack/plugins/security_solution/public/common/mock/endpoint/http_handler_mock_factory.ts b/x-pack/plugins/security_solution/public/common/mock/endpoint/http_handler_mock_factory.ts
index dc93ea8168a3f6..c064b1808734d5 100644
--- a/x-pack/plugins/security_solution/public/common/mock/endpoint/http_handler_mock_factory.ts
+++ b/x-pack/plugins/security_solution/public/common/mock/endpoint/http_handler_mock_factory.ts
@@ -82,7 +82,8 @@ type HttpMethods = keyof Pick<
 const HTTP_METHODS: HttpMethods[] = ['delete', 'fetch', 'get', 'post', 'put', 'head', 'patch'];
 
 export type ApiHandlerMock<R extends ResponseProvidersInterface = ResponseProvidersInterface> = (
-  http: jest.Mocked<HttpStart>
+  http: jest.Mocked<HttpStart>,
+  options?: { ignoreUnMockedApiRouteErrors?: boolean }
 ) => MockedApi<R>;
 
 interface RouteMock<R extends ResponseProvidersInterface = ResponseProvidersInterface> {
@@ -132,8 +133,9 @@ export type ApiHandlerMockFactoryProps<
 export const httpHandlerMockFactory = <R extends ResponseProvidersInterface = {}>(
   mocks: ApiHandlerMockFactoryProps<R>
 ): ApiHandlerMock<R> => {
-  return (http) => {
+  return (http, options) => {
     let inflightApiCalls = 0;
+    const { ignoreUnMockedApiRouteErrors = false } = options ?? {};
     const apiDoneListeners: Array<() => void> = [];
     const markApiCallAsHandled = async (delay?: RouteMock['delay']) => {
       inflightApiCalls++;
@@ -221,6 +223,10 @@ export const httpHandlerMockFactory = <R extends ResponseProvidersInterface = {}
           return priorMockedFunction(...args);
         }
 
+        if (ignoreUnMockedApiRouteErrors) {
+          return;
+        }
+
         const err = new ApiRouteNotMocked(`API [${method.toUpperCase()} ${path}] is not MOCKED!`);
         // Append additional stack calling data from when this API mock was applied
         err.stack += `\n${testContextStackTrace}`;
diff --git a/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/mocks.ts b/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/mocks.ts
index de05fa949b487e..5498d139fd6e1b 100644
--- a/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/mocks.ts
+++ b/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/mocks.ts
@@ -99,11 +99,30 @@ export const endpointPolicyResponseHttpMock = httpHandlerMockFactory<EndpointPol
   ]
 );
 
-type FleetApisHttpMockInterface = ResponseProvidersInterface<{
-  agentPolicy: () => GetAgentPoliciesResponse;
+export type FleetGetPackageListHttpMockInterface = ResponseProvidersInterface<{
   packageList: () => GetPackagesResponse;
 }>;
-export const fleetApisHttpMock = httpHandlerMockFactory<FleetApisHttpMockInterface>([
+export const fleetGetPackageListHttpMock = httpHandlerMockFactory<FleetGetPackageListHttpMockInterface>(
+  [
+    {
+      id: 'packageList',
+      method: 'get',
+      path: EPM_API_ROUTES.LIST_PATTERN,
+      handler() {
+        const generator = new EndpointDocGenerator('seed');
+
+        return {
+          response: [generator.generateEpmPackage()],
+        };
+      },
+    },
+  ]
+);
+
+export type FleetGetAgentPolicyListHttpMockInterface = ResponseProvidersInterface<{
+  agentPolicy: () => GetAgentPoliciesResponse;
+}>;
+export const fleetGetAgentPolicyListHttpMock = httpHandlerMockFactory([
   {
     id: 'agentPolicy',
     path: AGENT_POLICY_API_ROUTES.LIST_PATTERN,
@@ -127,18 +146,13 @@ export const fleetApisHttpMock = httpHandlerMockFactory<FleetApisHttpMockInterfa
       };
     },
   },
-  {
-    id: 'packageList',
-    method: 'get',
-    path: EPM_API_ROUTES.LIST_PATTERN,
-    handler() {
-      const generator = new EndpointDocGenerator('seed');
+]);
 
-      return {
-        response: [generator.generateEpmPackage()],
-      };
-    },
-  },
+type FleetApisHttpMockInterface = FleetGetPackageListHttpMockInterface &
+  FleetGetAgentPolicyListHttpMockInterface;
+export const fleetApisHttpMock = composeHttpHandlerMocks<FleetApisHttpMockInterface>([
+  fleetGetPackageListHttpMock,
+  fleetGetAgentPolicyListHttpMock,
 ]);
 
 type EndpointPageHttpMockInterface = EndpointMetadataHttpMocksInterface &
diff --git a/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/store/mock_endpoint_result_list.ts b/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/store/mock_endpoint_result_list.ts
index 40b843a676d9c5..8d257678a425d0 100644
--- a/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/store/mock_endpoint_result_list.ts
+++ b/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/store/mock_endpoint_result_list.ts
@@ -13,6 +13,7 @@ import {
   HostResultList,
   HostStatus,
   MetadataQueryStrategyVersions,
+  PendingActionsResponse,
 } from '../../../../../common/endpoint/types';
 import { EndpointDocGenerator } from '../../../../../common/endpoint/generate_data';
 import {
@@ -28,6 +29,8 @@ import {
   GetAgentsResponse,
 } from '../../../../../../fleet/common/types/rest_spec';
 import { GetPolicyListResponse } from '../../policy/types';
+import { pendingActionsResponseMock } from '../../../../common/lib/endpoint_pending_actions/mocks';
+import { ACTION_STATUS_ROUTE } from '../../../../../common/endpoint/constants';
 
 const generator = new EndpointDocGenerator('seed');
 
@@ -159,6 +162,11 @@ const endpointListApiPathHandlerMocks = ({
         perPage: 10,
       };
     },
+
+    // Pending Actions
+    [ACTION_STATUS_ROUTE]: (): PendingActionsResponse => {
+      return pendingActionsResponseMock();
+    },
   };
 
   // Build a GET route handler for each endpoint details based on the list of Endpoints passed on input
diff --git a/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/view/index.test.tsx b/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/view/index.test.tsx
index 1ac5c289c87cf7..7153f0a09868ad 100644
--- a/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/view/index.test.tsx
+++ b/x-pack/plugins/security_solution/public/management/pages/endpoint_hosts/view/index.test.tsx
@@ -79,6 +79,7 @@ describe('when on the endpoint list page', () => {
   afterAll(() => {
     abortSpy.mockRestore();
   });
+
   beforeEach(() => {
     const mockedContext = createAppRootMockRenderer();
     ({ history, store, coreStart, middlewareSpy } = mockedContext);
@@ -910,7 +911,10 @@ describe('when on the endpoint list page', () => {
           history.push('/endpoints?selected_endpoint=1&show=isolate');
         });
         renderResult = await renderAndWaitForData();
+        // Need to reset `http.post` and adjust it so that the mock for http host
+        // isolation api does not output error noise to the console
         coreStart.http.post.mockReset();
+        coreStart.http.post.mockImplementation(async () => null);
         isolateApiMock = hostIsolationHttpMocks(coreStart.http);
       });