diff --git a/lib/scientist/experiment.rb b/lib/scientist/experiment.rb
index f48b339..31fc015 100644
--- a/lib/scientist/experiment.rb
+++ b/lib/scientist/experiment.rb
@@ -10,10 +10,15 @@ module Scientist::Experiment
attr_accessor :raise_on_mismatches
def self.included(base)
- self.set_default(base) if base.instance_of?(Class)
+ set_default(base) if base.instance_of?(Class)
base.extend RaiseOnMismatch
end
+ # Set this class as default scientist experiment when included.
+ def self.set_as_default_scientist_experiment(set_default_class)
+ set_default(Scientist::Default) unless set_default_class
+ end
+
# Instantiate a new experiment (using the class given to the .set_default method).
def self.new(name)
(@experiment_klass || Scientist::Default).new(name)
diff --git a/test/scientist/experiment_test.rb b/test/scientist/experiment_test.rb
index 12462f6..e0cf869 100644
--- a/test/scientist/experiment_test.rb
+++ b/test/scientist/experiment_test.rb
@@ -31,6 +31,19 @@ def publish(result)
@ex = Fake.new
end
+ it "does not set as default when default_scientist_experiment is passed as false" do
+ klass = Class.new do
+ include Scientist::Experiment
+
+ Scientist::Experiment.set_as_default_scientist_experiment(false)
+
+ def initialize(name)
+ end
+ end
+
+ assert_kind_of Scientist::Default, Scientist::Experiment.new("hello")
+ end
+
it "sets the default on inclusion" do
klass = Class.new do
include Scientist::Experiment
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