Hide log rate analysis when there is no data and tests (#241004)

## Summary

Closes #185866 

### Before:
<img width="1595" height="839" alt="image"
src="https://github.com/user-attachments/assets/3597aacc-5fe2-4b87-9cc5-bf7722290411"
/>



### After:
<img width="1591" height="774" alt="image"
src="https://github.com/user-attachments/assets/47d2f147-fcf8-439f-be3d-32ff971d822b"
/>


### Checklist

Check the PR satisfies following conditions. 

Reviewers should verify this PR satisfies this list as well.

- [ ] Any text added follows [EUI's writing
guidelines](https://elastic.github.io/eui/#/guidelines/writing), uses
sentence case text and includes [i18n
support](https://github.com/elastic/kibana/blob/main/src/platform/packages/shared/kbn-i18n/README.md)
- [ ]
[Documentation](https://www.elastic.co/guide/en/kibana/master/development-documentation.html)
was added for features that require explanation or tutorials
- [ ] [Unit or functional
tests](https://www.elastic.co/guide/en/kibana/master/development-tests.html)
were updated or added to match the most common scenarios
- [ ] If a plugin configuration key changed, check if it needs to be
allowlisted in the cloud and added to the [docker
list](https://github.com/elastic/kibana/blob/main/src/dev/build/tasks/os_packages/docker_generator/resources/base/bin/kibana-docker)
- [ ] This was checked for breaking HTTP API changes, and any breaking
changes have been approved by the breaking-change committee. The
`release_note:breaking` label should be applied in these situations.
- [ ] [Flaky Test
Runner](https://ci-stats.kibana.dev/trigger_flaky_test_runner/1) was
used on any tests changed
- [ ] The PR description includes the appropriate Release Notes section,
and the correct `release_note:*` label is applied per the
[guidelines](https://www.elastic.co/guide/en/kibana/master/contributing.html#kibana-release-notes-process)
- [ ] Review the [backport
guidelines](https://docs.google.com/document/d/1VyN5k91e5OVumlc0Gb9RPa3h1ewuPE705nRtioPiTvY/edit?usp=sharing)
and apply applicable `backport:*` labels.

### Identify risks

Does this PR introduce any risks? For example, consider risks like hard
to test bugs, performance regression, potential of data loss.

Describe the risk, its severity, and mitigation for each identified
risk. Invite stakeholders and evaluate how to proceed before merging.

- [ ] [See some risk
examples](https://github.com/elastic/kibana/blob/main/RISK_MATRIX.mdx)
- [ ] ...

## Run unit tests

- `yarn test:jest
x-pack/solutions/observability/plugins/observability/public/components/custom_threshold/components/alert_details_app_section/alert_details_app_section.test.tsx`

---------

Co-authored-by: Faisal Kanout <[email protected]>

Author: sbelastic

x-pack/solutions/observability/plugins/observability/public/components/custom_threshold/components/alert_details_app_section/alert_details_app_section.test.tsx

@@ -7,7 +7,7 @@
 
 import React from 'react';
 import { chartPluginMock } from '@kbn/charts-plugin/public/mocks';
-import { coreMock as mockCoreMock } from '@kbn/core/public/mocks';
+import { coreMock } from '@kbn/core/public/mocks';
 import { __IntlProvider as IntlProvider } from '@kbn/i18n-react';
 import { ALERT_RULE_PARAMETERS } from '@kbn/rule-data-utils';
 import type { ParsedTechnicalFields } from '@kbn/rule-registry-plugin/common';
@@ -51,27 +51,46 @@ jest.mock('../../../rule_condition_chart/rule_condition_chart', () => ({
   RuleConditionChart: jest.fn(() => <div data-test-subj="RuleConditionChart" />),
 }));
 
-jest.mock('../../../../utils/kibana_react', () => ({
-  useKibana: () => ({
-    services: {
-      ...mockCoreMock.createStart(),
-      charts: mockedChartStartContract,
-      aiops: {
-        EmbeddableChangePointChart: jest.fn(),
+jest.mock('./log_rate_analysis', () => ({
+  LogRateAnalysis: jest.fn(() => <div data-test-subj="LogRateAnalysis" />),
+}));
+
+const mockServices = {
+  ...coreMock.createStart(),
+  charts: mockedChartStartContract,
+  aiops: {
+    EmbeddableChangePointChart: jest.fn(),
+  },
+  data: {
+    search: {
+      searchSource: {
+        create: jest.fn().mockResolvedValue({
+          getField: jest.fn().mockReturnValue({ id: 'test-index' }),
+        }),
       },
-      data: {
-        search: jest.fn(),
+    },
+  },
+  share: {
+    url: {
+      locators: {
+        get: jest
+          .fn()
+          .mockReturnValue({ getRedirectUrl: jest.fn().mockReturnValue('/view-in-app-url') }),
       },
-      share: {
-        url: {
-          locators: {
-            get: jest
-              .fn()
-              .mockReturnValue({ getRedirectUrl: jest.fn().mockReturnValue('/view-in-app-url') }),
-          },
-        },
+    },
+  },
+  application: {
+    capabilities: {
+      aiops: {
+        enabled: false,
       },
     },
+  },
+};
+
+jest.mock('../../../../utils/kibana_react', () => ({
+  useKibana: () => ({
+    services: mockServices,
   }),
 }));
 
@@ -146,4 +165,54 @@ describe('AlertDetailsAppSection', () => {
       'Equation result for min (system.memory.used.pct) + min (system.memory.used.pct) + min (system.memory.used.pct)'
     );
   });
+
+  it('should not render LogRateAnalysis when aiops is disabled', () => {
+    const result = renderComponent();
+    expect(result.queryByTestId('LogRateAnalysis')).not.toBeInTheDocument();
+  });
+
+  it('should not render LogRateAnalysis when aiops is disabled and has evaluation values', () => {
+    const result = renderComponent({}, {
+      'kibana.alert.evaluation.values': [2500, 5],
+    } as Object);
+    expect(result.queryByTestId('LogRateAnalysis')).not.toBeInTheDocument();
+  });
+
+  it('should render LogRateAnalysis when aiops is enabled and has evaluation values', () => {
+    mockServices.application.capabilities.aiops.enabled = true;
+    const result = renderComponent({}, {
+      'kibana.alert.evaluation.values': [2500, 5],
+    } as Object);
+    expect(result.getByTestId('LogRateAnalysis')).toBeTruthy();
+  });
+
+  it('should not render LogRateAnalysis when hasEvaluationValues is false', () => {
+    mockServices.application.capabilities.aiops.enabled = true;
+    const result = renderComponent({}, {
+      'kibana.alert.evaluation.values': [null, null],
+    } as Object);
+    expect(result.queryByTestId('LogRateAnalysis')).not.toBeInTheDocument();
+  });
+
+  it('should render LogRateAnalysis when hasEvaluationValues has some null but also some values', () => {
+    mockServices.application.capabilities.aiops.enabled = true;
+    const result = renderComponent({}, {
+      'kibana.alert.evaluation.values': [null, 5],
+    } as Object);
+    expect(result.getByTestId('LogRateAnalysis')).toBeTruthy();
+  });
+
+  it('should render LogRateAnalysis even when criteria array is empty if conditions are met', () => {
+    mockServices.application.capabilities.aiops.enabled = true;
+    const result = renderComponent({}, {
+      [ALERT_RULE_PARAMETERS]: {
+        ...buildCustomThresholdRule().params,
+        criteria: [],
+      } as Object,
+      'kibana.alert.evaluation.values': [2500, 5],
+    } as Object);
+    // Even with empty criteria, it renders the container and LogRateAnalysis if aiops is enabled
+    expect(result.queryByTestId('thresholdAlertOverviewSection')).toBeInTheDocument();
+    expect(result.queryByTestId('LogRateAnalysis')).toBeInTheDocument();
+  });
 });

x-pack/solutions/observability/plugins/observability/public/components/custom_threshold/components/alert_details_app_section/alert_details_app_section.tsx

@@ -64,6 +64,8 @@ export default function AlertDetailsAppSection({ alert }: AppSectionProps) {
   const alertEnd = alert.fields[ALERT_END];
   const groups = alert.fields[ALERT_GROUP];
   const additionalFilters = useMemo(() => getGroupFilters(groups), [groups]);
+  const hasEvaluationValues: boolean =
+    alert.fields[ALERT_EVALUATION_VALUES]?.some((value) => value != null) ?? false;
 
   const chartTitleAndTooltip: Array<{ title: string; tooltip: string }> = [];
 
@@ -180,7 +182,9 @@ export default function AlertDetailsAppSection({ alert }: AppSectionProps) {
           </EuiFlexItem>
         );
       })}
-      {aiopsEnabled && <LogRateAnalysis alert={alert} dataView={dataView} services={services} />}
+      {aiopsEnabled && hasEvaluationValues && (
+        <LogRateAnalysis alert={alert} dataView={dataView} services={services} />
+      )}
     </EuiFlexGroup>
   );
 }