Add BitcoinGold

README.md

@@ -40,7 +40,7 @@ func main() {
 - [x] Biocoin/BIO, `'biocoin'` or `'BIO'`
 - [x] Bitcoin/BTC, `'bitcoin'` or `'BTC'`
 - [x] BitcoinCash/BCH, `'bitcoincash'` or `'BCH'`
-- [ ] BitcoinGold/BTG, `'bitcoingold'` or `'BTG'`
+- [x] BitcoinGold/BTG, `'bitcoingold'` or `'BTG'`
 - [ ] BitcoinPrivate/BTCP, `'bitcoinprivate'` or `'BTCP'`
 - [ ] BitcoinZ/BTCZ, `'bitcoinz'` or `'BTCZ'`
 - [x] Callisto/CLO, `'callisto'` or `'CLO'`

bitcoin_gold_test.go

@@ -0,0 +1,33 @@
+package crptwav
+
+import "testing"
+
+func TestIsValidBitcoinGold(t *testing.T) {
+	tt := []struct {
+		currency string
+		address  string
+		network  string
+	}{
+		{address: "GW3JrQyHtoVfEFES3Y9JagiX3VSKQStLwj", currency: "bitcoingold", network: "prod"},
+		{address: "GUDWdeMyAXQbrNFFivAhkJQ1GfBCFdc7JF", currency: "bitcoingold", network: "prod"},
+		{address: "mvww6DEJ18dbyQUukpVQXvLgrNDJazZn1Y", currency: "bitcoingold", network: "testnet"},
+		{address: "mn3mdEE6cf1snxVsknNz4GRTdSrWXqYp7c", currency: "BTG", network: "testnet"},
+		{address: "GSNFPRsdaM3MXrU5HW1AxgFwmUQC8HXK9F", currency: "BTG", network: "prod"},
+	}
+	for _, tc := range tt {
+		switch tc.network {
+		case NetworkProd:
+			if !IsValidProdAddress(tc.address, tc.currency) {
+				t.Errorf("Address %s should be valid %s %s address", tc.address, tc.currency, tc.network)
+			}
+		case NetworkTest:
+			if !IsValidTestnetAddress(tc.address, tc.currency) {
+				t.Errorf("Address %s should be valid %s %s address", tc.address, tc.currency, tc.network)
+			}
+		default:
+			if !IsValidAddress(tc.address, tc.currency) {
+				t.Errorf("Address %s should be valid %s %s address", tc.address, tc.currency, tc.network)
+			}
+		}
+	}
+}

currencies.go

@@ -54,6 +54,17 @@ var currencies = []currency{
 		},
 		validator: isValidBitcoinAddress,
 	},
+	currency{
+		params: currencyParams{
+			name:   "bitcoingold",
+			symbol: "btg",
+			addressTypes: addressTypes{
+				prod:    []string{"26", "17"},
+				testnet: []string{"6f", "c4"},
+			},
+		},
+		validator: isValidBitcoinAddress,
+	},
 	currency{
 		params: currencyParams{
 			name:   "bitcoin",