[VOL-2735]Durations in voltha-lib-go should be specified as type time.Duration not int

Change-Id: I782e44fe1dc041b9eb54fd837950d2176e18fe42
diff --git a/pkg/db/backend_test.go b/pkg/db/backend_test.go
index 865d239..f96ed19 100644
--- a/pkg/db/backend_test.go
+++ b/pkg/db/backend_test.go
@@ -31,7 +31,7 @@
 
 const (
 	embedEtcdServerHost = "localhost"
-	defaultTimeout      = 1
+	defaultTimeout      = 1 * time.Second
 	defaultPathPrefix   = "Prefix"
 )
 
@@ -119,7 +119,7 @@
 // Liveness Check against Embedded Etcd Server should return alive state
 func TestPerformLivenessCheck_EmbeddedEtcdServer(t *testing.T) {
 	backend := provisionBackendWithEmbeddedEtcdServer(t)
-	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
 	defer cancel()
 	alive := backend.PerformLivenessCheck(ctx)
 	assert.True(t, alive)
@@ -128,7 +128,7 @@
 // Liveness Check against Dummy Etcd Server should return not-alive state
 func TestPerformLivenessCheck_DummyEtcdServer(t *testing.T) {
 	backend := provisionBackendWithDummyEtcdServer(t)
-	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
 	defer cancel()
 	alive := backend.PerformLivenessCheck(ctx)
 	assert.False(t, alive)
@@ -148,7 +148,7 @@
 // Enabling Liveness Channel after First Liveness Check
 func TestEnableLivenessChannel_EmbeddedEtcdServer_AfterLivenessCheck(t *testing.T) {
 	backend := provisionBackendWithEmbeddedEtcdServer(t)
-	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout*time.Second)
+	ctx, cancel := context.WithTimeout(context.Background(), defaultTimeout)
 	defer cancel()
 	backend.PerformLivenessCheck(ctx)