adds tests

Author: rosanelli

spec/flipper/adapters/active_support_cache_store_spec.rb

@@ -8,7 +8,8 @@
   end
   let(:cache) { ActiveSupport::Cache::MemoryStore.new }
   let(:write_through) { false }
-  let(:adapter) { described_class.new(memory_adapter, cache, 10, write_through: write_through) }
+  let(:race_condition_ttl) { 5 }
+  let(:adapter) { described_class.new(memory_adapter, cache, 10, race_condition_ttl: race_condition_ttl, write_through: write_through) }
   let(:flipper) { Flipper.new(adapter) }
 
   subject { adapter }
@@ -42,6 +43,15 @@
     expect(adapter.ttl).to be(nil)
   end
 
+  it "knows race_condition_ttl" do
+    expect(adapter.race_condition_ttl).to eq(race_condition_ttl)
+  end
+
+  it "knows default when no ttl or expires_in provided" do
+    adapter = described_class.new(memory_adapter, cache)
+    expect(adapter.race_condition_ttl).to be(nil)
+  end
+
   it "knows features_cache_key" do
     expect(adapter.features_cache_key).to eq("flipper/v1/features")
   end