convert legacy measure_time to time

lib/librato/metrics/queue.rb

@@ -41,17 +41,17 @@ def add(measurements)
           if @prefix
             metric[:name] = "#{@prefix}.#{metric[:name]}"
           end
-          multidimensional = true if metric[:tags]
+          multidimensional = true if metric[:tags] || metric[:time]
           type = ("#{type}s").to_sym
-          time = multidimensional ? :time : :measure_time
+          time_key = multidimensional ? :time : :measure_time
+          metric[:time] = metric.delete(:measure_time) if multidimensional && metric[:measure_time]
 
-          if metric[time]
-            metric[time] = metric[time].to_i
+          if metric[time_key]
+            metric[time_key] = metric[time_key].to_i
             check_measure_time(metric)
           elsif !skip_measurement_times
-            metric[time] = epoch_time
+            metric[time_key] = epoch_time
           end
-          multidimensional = true if metric[:time]
           if multidimensional
             @queued[:measurements] ||= []
             @queued[:measurements] << metric

spec/unit/metrics/queue_spec.rb

@@ -238,6 +238,20 @@ module Metrics
               expect(queue.queued[:tags]).to be_nil
               expect(queue.queued[:measurements].first).to eq(expected)
             end
+
+            it "converts legacy measure_time to time" do
+              expected_time = Time.now.to_i
+              expected_tags = { foo: "bar" }
+              expected = {
+                measurements: [{
+                  name: "test", value: 1, tags: expected_tags, time: expected_time
+                }]
+              }
+
+              subject.add test: { value: 1, tags: expected_tags, measure_time: expected_time }
+
+              expect(subject.queued).to equal_unordered(expected)
+            end
           end
 
           context "when Queue is initialized with tags and when tags are used as arguments" do