Cover replica scaling with tests.

gateway/tests/alerthandler_test.go

@@ -0,0 +1,47 @@
+package tests
+
+import (
+	"testing"
+
+	"github.com/alexellis/faas/gateway/handlers"
+)
+
+func TestScale1to5(t *testing.T) {
+	newReplicas := handlers.CalculateReplicas("firing", 1)
+	if newReplicas != 5 {
+		t.Log("Expected increment in blocks of 5 from 1 to 5")
+		t.Fail()
+	}
+}
+
+func TestScale5to10(t *testing.T) {
+	newReplicas := handlers.CalculateReplicas("firing", 5)
+	if newReplicas != 10 {
+		t.Log("Expected increment in blocks of 5 from 5 to 10")
+		t.Fail()
+	}
+}
+
+func TestScaleCeilingOf20Replicas_Noaction(t *testing.T) {
+	newReplicas := handlers.CalculateReplicas("firing", 20)
+	if newReplicas != 20 {
+		t.Log("Expected ceiling of 20 replicas")
+		t.Fail()
+	}
+}
+
+func TestScaleCeilingOf20Replicas(t *testing.T) {
+	newReplicas := handlers.CalculateReplicas("firing", 19)
+	if newReplicas != 20 {
+		t.Log("Expected ceiling of 20 replicas")
+		t.Fail()
+	}
+}
+
+func TestBackingOff10to1(t *testing.T) {
+	newReplicas := handlers.CalculateReplicas("resolved", 10)
+	if newReplicas != 1 {
+		t.Log("Expected backing off to 1 replica")
+		t.Fail()
+	}
+}

gateway/tests/isalexa_test.go

@@ -1,27 +0,0 @@
-package tests
-
-import (
-	"testing"
-
-	"io/ioutil"
-
-	"github.com/alexellis/faas/gateway/handlers"
-	"github.com/alexellis/faas/gateway/requests"
-)
-
-func TestIsAlexa(t *testing.T) {
-	requestBody, _ := ioutil.ReadFile("./alexhostname_request.json")
-	var result requests.AlexaRequestBody
-
-	result = handlers.IsAlexa(requestBody)
-
-	if len(result.Session.Application.ApplicationId) == 0 {
-		t.Fail()
-	}
-	if len(result.Session.SessionId) == 0 {
-		t.Fail()
-	}
-	if len(result.Request.Intent.Name) == 0 {
-		t.Fail()
-	}
-}