package birdfmt

import (
	"strings"
	"testing"
)

func TestRenderDynamicBGPDiscovery_v4(t *testing.T) {
	out, err := RenderDynamicBGPDiscovery(DynamicBGPDiscoveryOptions{
		RangesV4:        []string{"198.51.100.0/24", "203.0.113.0/24"},
		RequireExternal: true,
	})
	if err != nil {
		t.Fatal(err)
	}
	for _, want := range []string{
		"protocol bgp evobgp_discover_v4 from bgp_template",
		"neighbor range 198.51.100.0/24 external;",
		"neighbor range 203.0.113.0/24 external;",
		`dynamic name "evobgp_dyn_";`,
		"dynamic name digits 4;",
		"multihop;",
		"passive;",
		"import none;",
		"export none;",
	} {
		if !strings.Contains(out, want) {
			t.Fatalf("missing %q in:\n%s", want, out)
		}
	}
}

func TestRenderDynamicBGPDiscovery_invalid(t *testing.T) {
	_, err := RenderDynamicBGPDiscovery(DynamicBGPDiscoveryOptions{
		RangesV4: []string{"not-a-cidr"},
	})
	if err == nil {
		t.Fatal("expected error")
	}
}

func TestParseDiscoveryRanges(t *testing.T) {
	got := ParseDiscoveryRanges("198.51.100.0/24, 203.0.113.0/24\n198.51.100.0/24")
	if len(got) != 2 {
		t.Fatalf("got %v", got)
	}
}