Remove experiment override (#408)

Merge Remove experiment override from public

Author: lfoster-statsig

lib/evaluator.rb

@@ -568,6 +568,10 @@ def clear_experiment_overrides
       @experiment_overrides.clear
     end
 
+    def remove_experiment_override(experiment_name)
+      @experiment_overrides.delete(experiment_name.to_sym)
+    end
+
     def eval_spec(config_name, user, config, end_result, is_nested: false)
       config[:rules].each do |rule|
         end_result.sampling_rate = rule[:samplingRate]

lib/statsig.rb

@@ -373,6 +373,11 @@ def self.clear_experiment_overrides
     @shared_instance&.clear_experiment_overrides
   end
 
+  def self.remove_experiment_override(experiment_name)
+    ensure_initialized
+    @shared_instance&.remove_experiment_override(experiment_name)
+  end
+
   ##
   # @param [HashTable] debug information log with exposure events
   def self.set_debug_info(debug_info)

lib/statsig_driver.rb

@@ -338,6 +338,12 @@ def clear_experiment_overrides
     end
   end
 
+  def remove_experiment_override(experiment_name)
+    @err_boundary.capture(caller: __method__) do
+      @evaluator.remove_experiment_override(experiment_name)
+    end
+  end
+
   def set_debug_info(debug_info)
     @err_boundary.capture(caller: __method__) do
       @logger.set_debug_info(debug_info)

test/local_overrides_test.rb

@@ -117,6 +117,12 @@ def test_override_experiment_by_group_name
     assert_equal('LocalOverride', exp.evaluation_details&.reason)
     assert_equal('2RamGujUou6h2bVNQWhtNZ', exp.rule_id)
 
+    Statsig.remove_experiment_override('sample_experiment')
+    exp = Statsig.get_experiment(user, 'sample_experiment')
+    assert_equal('Test', exp.group_name)
+    assert_equal('Bootstrap', exp.evaluation_details&.reason)
+    assert_equal('2RamGujUou6h2bVNQWhtNZ', exp.rule_id)
+
     exp = Statsig.get_experiment(user, 'sample_experiment', Statsig::GetExperimentOptions.new(ignore_local_overrides: true))
     assert_equal('Test', exp.group_name)
     assert_equal('Bootstrap', exp.evaluation_details&.reason)