fix: exclude-identities-when-traits-is-undefined

Author: Zaimwa9

.gitmodules

@@ -1,4 +1,4 @@
 [submodule "tests/engine/engine-tests/engine-test-data"]
 	path = tests/engine/engine-tests/engine-test-data
 	url = [email protected]:Flagsmith/engine-test-data.git
-	branch = v3.4.1
+	branch = v3.5.0

flagsmith-engine/index.ts

@@ -4,9 +4,10 @@ import {
     EvaluationResultWithMetadata,
     FeatureContextWithMetadata,
     SDKFeatureMetadata,
-    FlagResultWithMetadata
+    FlagResultWithMetadata,
+    GenericEvaluationContext
 } from './evaluation/models.js';
-import { getIdentitySegments, getIdentityKey } from './segments/evaluators.js';
+import { getIdentitySegments } from './segments/evaluators.js';
 import { EvaluationResultFlags } from './evaluation/models.js';
 import { TARGETING_REASONS } from './features/types.js';
 import { getHashedPercentageForObjIds } from './utils/hashing/index.js';
@@ -37,12 +38,29 @@ export type SegmentOverrides = Record<string, SegmentOverride>;
 export function getEvaluationResult(
     context: EvaluationContextWithMetadata
 ): EvaluationResultWithMetadata {
-    const { segments, segmentOverrides } = evaluateSegments(context);
-    const flags = evaluateFeatures(context, segmentOverrides);
+    const enrichedContext = getEnrichedContext(context);
+    const { segments, segmentOverrides } = evaluateSegments(enrichedContext);
+    const flags = evaluateFeatures(enrichedContext, segmentOverrides);
 
     return { flags, segments };
 }
 
+function getEnrichedContext(context: EvaluationContextWithMetadata): EvaluationContextWithMetadata {
+    const identityKey = getIdentityKey(context);
+    if (!identityKey) return context;
+
+    return {
+        ...context,
+        ...(context.identity && {
+            identity: {
+                identifier: context.identity.identifier,
+                key: identityKey,
+                traits: context.identity.traits || {}
+            }
+        })
+    };
+}
+
 /**
  * Evaluates which segments the identity belongs to and collects feature overrides.
  *
@@ -234,3 +252,8 @@ const getTargetingMatchReason = (matchObject: TargetingMatchReason) => {
 
     return TARGETING_REASONS.DEFAULT;
 };
+
+const getIdentityKey = (context: GenericEvaluationContext): string | undefined => {
+    if (!context.identity) return undefined;
+    return context.identity.key || `${context.environment.key}_${context.identity?.identifier}`;
+};

flagsmith-engine/segments/evaluators.ts

@@ -48,9 +48,18 @@ export function traitsMatchSegmentCondition(
     context?: GenericEvaluationContext
 ): boolean {
     if (condition.operator === PERCENTAGE_SPLIT) {
-        const contextValueKey =
-            getContextValue(condition.property, context) || getIdentityKey(context);
-        const hashedPercentage = getHashedPercentageForObjIds([segmentKey, contextValueKey]);
+        let splitKey: string | undefined;
+
+        if (!condition.property) {
+            splitKey = context?.identity?.key;
+        } else {
+            splitKey = getContextValue(condition.property, context);
+        }
+
+        if (!splitKey) {
+            return false;
+        }
+        const hashedPercentage = getHashedPercentageForObjIds([segmentKey, splitKey]);
         return hashedPercentage <= parseFloat(String(condition.value));
     }
     if (!condition.property) {
@@ -175,12 +184,6 @@ export function getContextValue(jsonPath: string, context?: GenericEvaluationCon
     }
 }
 
-export function getIdentityKey(context?: GenericEvaluationContext): string | undefined {
-    if (!context?.identity) return undefined;
-
-    return context.identity.key || `${context.environment.key}_${context.identity.identifier}`;
-}
-
 function normalizeJsonPath(jsonPath: string): string {
     return jsonPath.replace(/\.([^.\[\]]+)$/, "['$1']");
 }

tests/engine/engine-tests/engine-test-data

@@ -431,7 +431,6 @@ describe('percentage split operator', () => {
         const mockHashFn = getHashedPercentageForObjIds;
         mockHashFn.mockReturnValue(hashedValue);
         const condition = {
-            property: 'any',
             operator: 'PERCENTAGE_SPLIT',
             value: threshold.toString()
         } as SegmentCondition1 | InSegmentCondition;