package main

import "testing"

func TestParseIwinfoAssocList(t *testing.T) {
	output := `AA:BB:CC:DD:EE:FF  -49 dBm / -95 dBm (SNR 46)  210 ms ago
	RX: 72.2 MBit/s, MCS 7, 20MHz
	TX: 135.0 MBit/s, MCS 6, 40MHz

11:22:33:44:55:66  -62 dBm / -95 dBm (SNR 33)  30 ms ago
	RX: 6.0 MBit/s
	TX: 54.0 MBit/s`

	clients := parseIwinfoAssocList("phy0-ap0", output)
	if len(clients) != 2 {
		t.Fatalf("expected 2 clients, got %d", len(clients))
	}
	if clients[0]["interface"] != "phy0-ap0" {
		t.Fatalf("unexpected interface: %q", clients[0]["interface"])
	}
	if clients[0]["mac"] != "AA:BB:CC:DD:EE:FF" {
		t.Fatalf("unexpected mac: %q", clients[0]["mac"])
	}
	if clients[0]["signal_dbm"] != "-49" {
		t.Fatalf("unexpected signal: %q", clients[0]["signal_dbm"])
	}
	if clients[0]["rx_rate"] == "" || clients[0]["tx_rate"] == "" {
		t.Fatalf("expected RX/TX rates, got %#v", clients[0])
	}
	if clients[1]["mac"] != "11:22:33:44:55:66" {
		t.Fatalf("unexpected second mac: %q", clients[1]["mac"])
	}
}

func TestLooksLikeMAC(t *testing.T) {
	valid := []string{"aa:bb:cc:dd:ee:ff", "AA:BB:CC:DD:EE:FF", "11:22:33:44:55:66,"}
	for _, value := range valid {
		if !looksLikeMAC(value) {
			t.Fatalf("expected %q to be a MAC", value)
		}
	}

	invalid := []string{"", "aa:bb:cc:dd:ee", "aa-bb-cc-dd-ee-ff", "not-a-mac-address"}
	for _, value := range invalid {
		if looksLikeMAC(value) {
			t.Fatalf("expected %q to be invalid", value)
		}
	}
}

func TestParsePacketLossBusyBox(t *testing.T) {
	output := `PING 10.10.10.10 (10.10.10.10): 56 data bytes
64 bytes from 10.10.10.10: seq=0 ttl=64 time=1.157 ms
64 bytes from 10.10.10.10: seq=1 ttl=64 time=0.883 ms
64 bytes from 10.10.10.10: seq=2 ttl=64 time=0.952 ms

--- 10.10.10.10 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.883/0.997/1.157 ms`

	if loss := parsePacketLoss(output); loss != 0 {
		t.Fatalf("expected 0%% packet loss, got %v", loss)
	}
	if latency := parseLatency(output); latency != 0.997 {
		t.Fatalf("expected avg latency 0.997, got %v", latency)
	}
}

func TestParsePacketLossGNU(t *testing.T) {
	output := `--- 1.1.1.1 ping statistics ---
3 packets transmitted, 2 received, 33.3333% packet loss, time 2002ms
rtt min/avg/max/mdev = 10.100/11.200/12.300/0.100 ms`

	if loss := parsePacketLoss(output); loss != 33.3333 {
		t.Fatalf("expected 33.3333%% packet loss, got %v", loss)
	}
	if latency := parseLatency(output); latency != 11.2 {
		t.Fatalf("expected avg latency 11.2, got %v", latency)
	}
}