more config

internal/config/config_test.go

@@ -371,3 +371,33 @@ func writeTempConfig(t *testing.T, content string) string {
 	}
 	return path
 }
+
+func TestForwardZoneConfig(t *testing.T) {
+	c := Default()
+	c.Block.Enabled = false
+	c.Upstream.ForwardZones = []ForwardZone{{Zone: "LOCAL.", Servers: []UpstreamServer{{Addr: "10.10.0.1"}}}}
+	c.applyDefaults()
+	if err := c.Validate(); err != nil {
+		t.Fatal(err)
+	}
+	z := c.Upstream.ForwardZones[0]
+	if z.Zone != "local" || z.Servers[0].Addr != "10.10.0.1:53" || z.Servers[0].Proto != "udp" {
+		t.Fatalf("defaults: %+v", z)
+	}
+	for _, bad := range []ForwardZone{
+		{Zone: "*.local", Servers: z.Servers},
+		{Zone: "", Servers: z.Servers},
+		{Zone: "local"},
+		{Zone: "local", Servers: []UpstreamServer{{Addr: "", Proto: "udp"}}},
+		{Zone: "local", Servers: []UpstreamServer{{Addr: "10.10.0.1:53", Proto: "http"}}},
+	} {
+		c.Upstream.ForwardZones = []ForwardZone{bad}
+		if err := c.Validate(); err == nil {
+			t.Fatalf("accepted %+v", bad)
+		}
+	}
+	c.Upstream.ForwardZones = []ForwardZone{z, z}
+	if err := c.Validate(); err == nil {
+		t.Fatal("accepted duplicate zone")
+	}
+}