console/frontend: use static generated content for fields

This is more reliable and efficient but it also remove a bug with
equality comparison failing and thus inability to remove entries.
Also, sorted exactly as we want.

console/graph_test.go

@@ -5,7 +5,6 @@ import (
 	"encoding/json"
 	"fmt"
 	netHTTP "net/http"
-	"sort"
 	"strings"
 	"testing"
 	"time"
@@ -265,71 +264,3 @@ func TestGraphHandler(t *testing.T) {
 		t.Fatalf("POST /api/v0/console/graph (-got, +want):\n%s", diff)
 	}
 }
-
-func TestGraphFieldsHandler(t *testing.T) {
-	r := reporter.NewMock(t)
-	ch, _ := clickhousedb.NewMock(t, r)
-	h := http.NewMock(t, r)
-	c, err := New(r, Configuration{}, Dependencies{
-		Daemon:       daemon.NewMock(t),
-		HTTP:         h,
-		ClickHouseDB: ch,
-	})
-	if err != nil {
-		t.Fatalf("New() error:\n%+v", err)
-	}
-	helpers.StartStop(t, c)
-
-	resp, err := netHTTP.Get(fmt.Sprintf("http://%s/api/v0/console/graph/fields", h.Address))
-	if err != nil {
-		t.Fatalf("POST /api/v0/console/graph/fields:\n%+v", err)
-	}
-	defer resp.Body.Close()
-	if resp.StatusCode != 200 {
-		t.Errorf("POST /api/v0/console/graph/fields: got status code %d, not 200", resp.StatusCode)
-	}
-	gotContentType := resp.Header.Get("Content-Type")
-	if gotContentType != "application/json; charset=utf-8" {
-		t.Errorf("POST /api/v0/console/graph/fields Content-Type (-got, +want):\n-%s\n+%s",
-			gotContentType, "application/json; charset=utf-8")
-	}
-	decoder := json.NewDecoder(resp.Body)
-	var got []string
-	if err := decoder.Decode(&got); err != nil {
-		t.Fatalf("POST /api/v0/console/graph error:\n%+v", err)
-	}
-	expected := []string{
-		"ExporterAddress",
-		"ExporterName",
-		"ExporterGroup",
-		"SrcAddr",
-		"DstAddr",
-		"SrcAS",
-		"DstAS",
-		"SrcCountry",
-		"DstCountry",
-		"InIfName",
-		"OutIfName",
-		"InIfDescription",
-		"OutIfDescription",
-		"InIfSpeed",
-		"OutIfSpeed",
-		"InIfConnectivity",
-		"OutIfConnectivity",
-		"InIfProvider",
-		"OutIfProvider",
-		"InIfBoundary",
-		"OutIfBoundary",
-		"EType",
-		"Proto",
-		"SrcPort",
-		"DstPort",
-		"ForwardingStatus",
-	}
-	sort.Strings(expected)
-	sort.Strings(got)
-
-	if diff := helpers.Diff(got, expected); diff != "" {
-		t.Fatalf("POST /api/v0/console/graph/fields (-got, +want):\n%s", diff)
-	}
-}