[AI-FSSDK] [FSSDK-12337] Update experiment type values to short-form abbreviations and add constants

Author: FarhanAnjum-opti

lib/project_config/project_config.spec.ts

@@ -1358,7 +1358,7 @@ describe('Feature Rollout support', () => {
           key: 'rollout_experiment',
           layerId: 'layer_rollout',
           status: 'Running',
-          type: 'feature_rollout',
+          type: 'fr',
           variations: [{ id: 'var_rollout_1', key: 'variation_rollout_1', variables: [] }],
           trafficAllocation: [{ entityId: 'var_rollout_1', endOfRange: 5000 }],
           audienceIds: [],
@@ -1416,7 +1416,7 @@ describe('Feature Rollout support', () => {
     expect(abExperiment.type).toBeUndefined();
   });
 
-  it('should inject everyone else variation into feature_rollout experiments', () => {
+  it('should inject everyone else variation into fr (feature rollout) experiments', () => {
     const datafile = makeDatafile();
     const config = projectConfig.createProjectConfig(datafile as any);
     const rolloutExperiment = config.experimentIdMap['exp_rollout'];
@@ -1481,6 +1481,6 @@ describe('Feature Rollout support', () => {
     const datafile = makeDatafile();
     const config = projectConfig.createProjectConfig(datafile as any);
     const rolloutExperiment = config.experimentIdMap['exp_rollout'];
-    expect(rolloutExperiment.type).toBe('feature_rollout');
+    expect(rolloutExperiment.type).toBe('fr');
   });
 });

lib/project_config/project_config.ts

@@ -15,7 +15,7 @@
  */
 import { find, objectEntries, objectValues, keyBy, assignBy } from '../utils/fns';
 
-import { FEATURE_VARIABLE_TYPES } from '../utils/enums';
+import { EXPERIMENT_TYPES, FEATURE_VARIABLE_TYPES } from '../utils/enums';
 import configValidator from '../utils/config_validator';
 
 import { LoggerFacade } from '../logging/logger';
@@ -301,15 +301,15 @@ export const createProjectConfig = function(datafileObj?: JSON, datafileStr: str
     });
   });
 
-  // Inject "everyone else" variation into feature_rollout experiments
+  // Inject "everyone else" variation into feature rollout (FR) experiments
   (projectConfig.featureFlags || []).forEach(featureFlag => {
     const everyoneElseVariation = getEveryoneElseVariation(projectConfig, featureFlag);
     if (!everyoneElseVariation) {
       return;
     }
     (featureFlag.experimentIds || []).forEach(experimentId => {
       const experiment = projectConfig.experimentIdMap[experimentId];
-      if (experiment && experiment.type === 'feature_rollout') {
+      if (experiment && experiment.type === EXPERIMENT_TYPES.FR) {
         experiment.variations.push(everyoneElseVariation);
         experiment.trafficAllocation.push({
           entityId: everyoneElseVariation.id,

lib/utils/enums/index.ts

@@ -61,6 +61,14 @@ export const DECISION_SOURCES = {
 
 export type DecisionSource = typeof DECISION_SOURCES[keyof typeof DECISION_SOURCES];
 
+export const EXPERIMENT_TYPES = {
+  AB: 'ab',
+  MAB: 'mab',
+  CMAB: 'cmab',
+  TD: 'td',
+  FR: 'fr',
+} as const;
+
 export const AUDIENCE_EVALUATION_TYPES = {
   RULE: 'rule',
   EXPERIMENT: 'experiment',