Add benchmark with full size struct

Author: oschwald

reader_test.go

@@ -697,6 +697,74 @@ func BenchmarkLookupNetwork(b *testing.B) {
 	assert.NoError(b, db.Close(), "error on close")
 }
 
+type fullCity struct {
+	City struct {
+		GeoNameID uint              `maxminddb:"geoname_id"`
+		Names     map[string]string `maxminddb:"names"`
+	} `maxminddb:"city"`
+	Continent struct {
+		Code      string            `maxminddb:"code"`
+		GeoNameID uint              `maxminddb:"geoname_id"`
+		Names     map[string]string `maxminddb:"names"`
+	} `maxminddb:"continent"`
+	Country struct {
+		GeoNameID         uint              `maxminddb:"geoname_id"`
+		IsInEuropeanUnion bool              `maxminddb:"is_in_european_union"`
+		IsoCode           string            `maxminddb:"iso_code"`
+		Names             map[string]string `maxminddb:"names"`
+	} `maxminddb:"country"`
+	Location struct {
+		AccuracyRadius uint16  `maxminddb:"accuracy_radius"`
+		Latitude       float64 `maxminddb:"latitude"`
+		Longitude      float64 `maxminddb:"longitude"`
+		MetroCode      uint    `maxminddb:"metro_code"`
+		TimeZone       string  `maxminddb:"time_zone"`
+	} `maxminddb:"location"`
+	Postal struct {
+		Code string `maxminddb:"code"`
+	} `maxminddb:"postal"`
+	RegisteredCountry struct {
+		GeoNameID         uint              `maxminddb:"geoname_id"`
+		IsInEuropeanUnion bool              `maxminddb:"is_in_european_union"`
+		IsoCode           string            `maxminddb:"iso_code"`
+		Names             map[string]string `maxminddb:"names"`
+	} `maxminddb:"registered_country"`
+	RepresentedCountry struct {
+		GeoNameID         uint              `maxminddb:"geoname_id"`
+		IsInEuropeanUnion bool              `maxminddb:"is_in_european_union"`
+		IsoCode           string            `maxminddb:"iso_code"`
+		Names             map[string]string `maxminddb:"names"`
+		Type              string            `maxminddb:"type"`
+	} `maxminddb:"represented_country"`
+	Subdivisions []struct {
+		GeoNameID uint              `maxminddb:"geoname_id"`
+		IsoCode   string            `maxminddb:"iso_code"`
+		Names     map[string]string `maxminddb:"names"`
+	} `maxminddb:"subdivisions"`
+	Traits struct {
+		IsAnonymousProxy    bool `maxminddb:"is_anonymous_proxy"`
+		IsSatelliteProvider bool `maxminddb:"is_satellite_provider"`
+	} `maxminddb:"traits"`
+}
+
+func BenchmarkCityLookup(b *testing.B) {
+	db, err := Open("GeoLite2-City.mmdb")
+	require.NoError(b, err)
+
+	r := rand.New(rand.NewSource(time.Now().UnixNano()))
+	var result fullCity
+
+	ip := make(net.IP, 4)
+	for i := 0; i < b.N; i++ {
+		randomIPv4Address(r, ip)
+		err = db.Lookup(ip, &result)
+		if err != nil {
+			b.Error(err)
+		}
+	}
+	assert.NoError(b, db.Close(), "error on close")
+}
+
 func BenchmarkCountryCode(b *testing.B) {
 	db, err := Open("GeoLite2-City.mmdb")
 	require.NoError(b, err)