add tests to verify gzip compression headers

httpd/handler_test.go

@@ -480,6 +480,54 @@ func TestHandler_DeleteRetentionPolicy_NotFound(t *testing.T) {
 	}
 }
 
+func TestHandler_GzipEnabled(t *testing.T) {
+	srvr := OpenServer(NewMessagingClient())
+	s := NewHTTPServer(srvr)
+	defer s.Close()
+
+	req, err := http.NewRequest("GET", s.URL+`/ping`, bytes.NewBuffer([]byte{}))
+	if err != nil {
+		panic(err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept-Encoding", "gzip")
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		panic(err)
+	}
+
+	if ce := resp.Header.Get("Content-Encoding"); ce != "gzip" {
+		t.Fatalf("unexpected Content-Encoding.  expected %q, actual: %q", "gzip", ce)
+	}
+}
+
+func TestHandler_GzipDisabled(t *testing.T) {
+	srvr := OpenServer(NewMessagingClient())
+	s := NewHTTPServer(srvr)
+	defer s.Close()
+
+	req, err := http.NewRequest("GET", s.URL+`/ping`, bytes.NewBuffer([]byte{}))
+	if err != nil {
+		panic(err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Accept-Encoding", "")
+
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		panic(err)
+	}
+
+	if ce := resp.Header.Get("Content-Encoding"); ce == "gzip" {
+		t.Fatalf("unexpected Content-Encoding.  expected %q, actual: %q", "", ce)
+	}
+}
+
 func TestHandler_Ping(t *testing.T) {
 	srvr := OpenServer(NewMessagingClient())
 	s := NewHTTPServer(srvr)