Tests for new throttle policy

app/lib/throttle_policy.rb

@@ -3,6 +3,9 @@ class ThrottlePolicy
   TTL = { min: 60,
          hour: 60 * 60,
          day: 60 * 60 * 24 }
+  ROUNDING_HELPERS = { min: :beginning_of_minute,
+                       hour: :beginning_of_hour,
+                       day: :beginning_of_day }
 
   TIME_UNITS = TTL.keys
   VIOLATION_TPL = "more than %{limit} / %{period}"
@@ -56,10 +59,6 @@ class ThrottlePolicy
     (redis.get(cache_key(id, period)) || "0").to_i
   end
 
-  ROUNDING_HELPERS = { min: :beginning_of_minute,
-                       hour: :beginning_of_hour,
-                       day: :beginning_of_day }
-
   def next_window(period, now = Time.now)
     helper = ROUNDING_HELPERS.fetch(period)
     offset = TTL.fetch(period).seconds

spec/lib/log_service_support_spec.rb

@@ -74,6 +74,14 @@ describe LogService do
     end.to raise_error(Mutations::ValidationException)
   end
 
+  it "throttles a device that sends too many logs" do
+    violation = ThrottlePolicy::Violation.new(Time.now, "whatever")
+    return_error = receive(:violation_for).with(any_args).and_return(violation)
+    expect(LogService::THROTTLE_POLICY).to(return_error)
+    j = normal_hash[].to_json
+    LogService.new.process(fake_delivery_info, j)
+  end
+
   it "does not save `fun`, `debug` or `nil` logs" do
     ["fun", "debug", nil].map do |type|
       Log.destroy_all