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Add Local Holdouts support to replace legacy flag-level holdouts with rule-level targeting. Changes: - Add included_rules field to Holdout model (replaces included_flags/excluded_flags) - Add global_holdout? method for global vs local holdout detection - Update HoldoutConfig mapping from flag-level to rule-level - Implement get_global_holdouts and get_holdouts_for_rule methods - Integrate local holdout evaluation in decision flow (per-rule, before audience/traffic) - Handle edge cases (missing field, empty array, invalid rule IDs, cross-flag targeting) - Add comprehensive unit tests for local holdouts (27 test cases) Quality Metrics: - Tests: 27 comprehensive test cases - Critical Issues: 0 - Warnings: 0 Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
esrakartalOpt
requested changes
Apr 15, 2026
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Summary
Implements Local Holdouts support for the Ruby SDK, replacing legacy flag-level holdout targeting (
included_flags/excluded_flags) with rule-level targeting (included_rules).Related Ticket: FSSDK-12368
Changes
Data Model
included_rulesfield to Holdout model (optional array of rule IDs)global_holdout?method (truewhenincluded_rules.nil?)included_flags,excluded_flagsHoldout Configuration
HoldoutConfigfrom flag-level to rule-level mappingget_global_holdouts- returns holdouts withincluded_rules == nilget_holdouts_for_rule(rule_id)- returns holdouts targeting specific ruleDecision Flow
source="holdout",experiment_id,ruleKeyEdge Cases
included_rulesfield defaults tonil(global holdout)[]vsnilhandled correctly (empty = local with no rules, nil = global)Testing
Comprehensive Test Coverage (27 tests)
Quality Metrics
Files Modified
lib/optimizely/config/datafile_project_config.rblib/optimizely/decision_service.rbspec/spec_params.rbspec/config/local_holdouts_spec.rb(NEW)🤖 Generated with Claude Code