Fix Missing Consumable Clock (prebid#1610)

adapters/consumable/consumable.go

@@ -294,6 +294,7 @@ func extractExtensions(impression openrtb.Imp) (*adapters.ExtImpBidder, *openrtb
 // Builder builds a new instance of the Consumable adapter for the given bidder with the given config.
 func Builder(bidderName openrtb_ext.BidderName, config config.Adapter) (adapters.Bidder, error) {
 	bidder := &ConsumableAdapter{
+		clock:    realInstant{},
 		endpoint: config.Endpoint,
 	}
 	return bidder, nil

adapters/consumable/consumable_test.go

@@ -8,6 +8,7 @@ import (
 	"github.com/prebid/prebid-server/adapters/adapterstest"
 	"github.com/prebid/prebid-server/config"
 	"github.com/prebid/prebid-server/openrtb_ext"
+	"github.com/stretchr/testify/assert"
 )
 
 func TestJsonSamples(t *testing.T) {
@@ -18,11 +19,18 @@ func TestJsonSamples(t *testing.T) {
 		t.Fatalf("Builder returned unexpected error %v", buildErr)
 	}
 
-	setKnownTime(bidder)
+	assertClock(t, bidder)
+	replaceClockWithKnownTime(bidder)
+
 	adapterstest.RunJSONBidderTest(t, "consumable", bidder)
 }
 
-func setKnownTime(bidder adapters.Bidder) {
+func assertClock(t *testing.T, bidder adapters.Bidder) {
+	bidderConsumable, _ := bidder.(*ConsumableAdapter)
+	assert.NotNil(t, bidderConsumable.clock)
+}
+
+func replaceClockWithKnownTime(bidder adapters.Bidder) {
 	bidderConsumable, _ := bidder.(*ConsumableAdapter)
 	bidderConsumable.clock = knownInstant(time.Date(2016, 1, 1, 12, 30, 15, 0, time.UTC))
 }