package main

import "testing"

func TestParseLabelsFromLines(t *testing.T) {
	labels, err := parseLabels(`
traefik.http.routers.{router}.priority=100
# comment
traefik.http.routers.{router}.middlewares=tunnel-{tunKey}-headers
`)
	if err != nil {
		t.Fatalf("parseLabels: %v", err)
	}

	if labels["traefik.http.routers.{router}.priority"] != "100" {
		t.Fatalf("expected priority label, got %#v", labels)
	}
	if labels["traefik.http.routers.{router}.middlewares"] != "tunnel-{tunKey}-headers" {
		t.Fatalf("expected middlewares label, got %#v", labels)
	}
}

func TestParseLabelsFromJSON(t *testing.T) {
	labels, err := parseLabels(`{" traefik.http.routers.{router}.priority ":" 100 "}`)
	if err != nil {
		t.Fatalf("parseLabels: %v", err)
	}

	if labels["traefik.http.routers.{router}.priority"] != "100" {
		t.Fatalf("expected trimmed JSON label, got %#v", labels)
	}
}

func TestParseLabelsRejectsInvalidLine(t *testing.T) {
	if _, err := parseLabels("not-a-label"); err == nil {
		t.Fatalf("expected invalid label line to fail")
	}
}