server: add a test for the health check handler

server/handlers_test.go

@@ -1 +1,19 @@
 package server
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"testing"
+)
+
+func TestHandleHealth(t *testing.T) {
+	httpServer, server := newTestServer(t, nil)
+	defer httpServer.Close()
+
+	rr := httptest.NewRecorder()
+	server.handleHealth(rr, httptest.NewRequest("GET", "/healthz", nil))
+	if rr.Code != http.StatusOK {
+		t.Errorf("expected 200 got %d", rr.Code)
+	}
+
+}