[ML] Migrate server side Mocha tests to Jest. (#65651)

Migrates job validation related server side tests from Mocha to Jest.
# Conflicts:
#	x-pack/plugins/ml/server/models/job_validation/validate_influencers.ts

Author: walterra

x-pack/plugins/ml/server/models/bucket_span_estimator/__tests__/bucket_span_estimator.js renamed to x-pack/plugins/ml/server/models/bucket_span_estimator/bucket_span_estimator.test.ts

@@ -4,8 +4,11 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import expect from '@kbn/expect';
-import { estimateBucketSpanFactory } from '../bucket_span_estimator';
+import { APICaller } from 'kibana/server';
+
+import { ES_AGGREGATION } from '../../../common/constants/aggregation_types';
+
+import { estimateBucketSpanFactory, BucketSpanEstimatorData } from './bucket_span_estimator';
 
 // Mock callWithRequest with the ability to simulate returning different
 // permission settings. On each call using `ml.privilegeCheck` we retrieve
@@ -14,7 +17,7 @@ import { estimateBucketSpanFactory } from '../bucket_span_estimator';
 // sufficient permissions should be returned, the second time insufficient
 // permissions.
 const permissions = [false, true];
-const callWithRequest = method => {
+const callWithRequest: APICaller = (method: string) => {
   return new Promise(resolve => {
     if (method === 'ml.privilegeCheck') {
       resolve({
@@ -28,34 +31,19 @@ const callWithRequest = method => {
       return;
     }
     resolve({});
-  });
+  }) as Promise<any>;
 };
 
-const callWithInternalUser = () => {
+const callWithInternalUser: APICaller = () => {
   return new Promise(resolve => {
     resolve({});
-  });
+  }) as Promise<any>;
 };
 
-// mock xpack_main plugin
-function mockXpackMainPluginFactory(isEnabled = false, licenseType = 'platinum') {
-  return {
-    info: {
-      isAvailable: () => true,
-      feature: () => ({
-        isEnabled: () => isEnabled,
-      }),
-      license: {
-        getType: () => licenseType,
-      },
-    },
-  };
-}
-
 // mock configuration to be passed to the estimator
-const formConfig = {
-  aggTypes: ['count'],
-  duration: {},
+const formConfig: BucketSpanEstimatorData = {
+  aggTypes: [ES_AGGREGATION.COUNT],
+  duration: { start: 0, end: 1 },
   fields: [null],
   index: '',
   query: {
@@ -64,58 +52,45 @@ const formConfig = {
       must_not: [],
     },
   },
+  splitField: undefined,
+  timeField: undefined,
 };
 
 describe('ML - BucketSpanEstimator', () => {
   it('call factory', () => {
     expect(function() {
-      estimateBucketSpanFactory(callWithRequest, callWithInternalUser);
-    }).to.not.throwError('Not initialized.');
+      estimateBucketSpanFactory(callWithRequest, callWithInternalUser, false);
+    }).not.toThrow('Not initialized.');
   });
 
   it('call factory and estimator with security disabled', done => {
     expect(function() {
       const estimateBucketSpan = estimateBucketSpanFactory(
         callWithRequest,
         callWithInternalUser,
-        mockXpackMainPluginFactory()
+        true
       );
 
       estimateBucketSpan(formConfig).catch(catchData => {
-        expect(catchData).to.be('Unable to retrieve cluster setting search.max_buckets');
+        expect(catchData).toBe('Unable to retrieve cluster setting search.max_buckets');
 
         done();
       });
-    }).to.not.throwError('Not initialized.');
+    }).not.toThrow('Not initialized.');
   });
 
-  it('call factory and estimator with security enabled and sufficient permissions.', done => {
+  it('call factory and estimator with security enabled.', done => {
     expect(function() {
       const estimateBucketSpan = estimateBucketSpanFactory(
         callWithRequest,
         callWithInternalUser,
-        mockXpackMainPluginFactory(true)
+        false
       );
       estimateBucketSpan(formConfig).catch(catchData => {
-        expect(catchData).to.be('Unable to retrieve cluster setting search.max_buckets');
+        expect(catchData).toBe('Unable to retrieve cluster setting search.max_buckets');
 
         done();
       });
-    }).to.not.throwError('Not initialized.');
-  });
-
-  it('call factory and estimator with security enabled and insufficient permissions.', done => {
-    expect(function() {
-      const estimateBucketSpan = estimateBucketSpanFactory(
-        callWithRequest,
-        callWithInternalUser,
-        mockXpackMainPluginFactory(true)
-      );
-
-      estimateBucketSpan(formConfig).catch(catchData => {
-        expect(catchData).to.be('Insufficient permissions to call bucket span estimation.');
-        done();
-      });
-    }).to.not.throwError('Not initialized.');
+    }).not.toThrow('Not initialized.');
   });
 });

x-pack/plugins/ml/server/models/job_validation/__tests__/mock_farequote_cardinality.json renamed to x-pack/plugins/ml/server/models/job_validation/__mocks__/mock_farequote_cardinality.json

@@ -6,14 +6,19 @@
 
 import { APICaller } from 'kibana/server';
 import { TypeOf } from '@kbn/config-schema';
+
+import { DeepPartial } from '../../../common/types/common';
+
 import { validateJobSchema } from '../../routes/schemas/job_validation_schema';
 
-type ValidateJobPayload = TypeOf<typeof validateJobSchema>;
+import { ValidationMessage } from './messages';
+
+export type ValidateJobPayload = TypeOf<typeof validateJobSchema>;
 
 export function validateJob(
   callAsCurrentUser: APICaller,
-  payload: ValidateJobPayload,
-  kbnVersion: string,
-  callAsInternalUser: APICaller,
-  isSecurityDisabled: boolean
-): string[];
+  payload?: DeepPartial<ValidateJobPayload>,
+  kbnVersion?: string,
+  callAsInternalUser?: APICaller,
+  isSecurityDisabled?: boolean
+): Promise<ValidationMessage[]>;