From 0fea98857c490c47c7b02a2d6af4146c3285b4e4 Mon Sep 17 00:00:00 2001
From: Adrian Gallagher <thrasher@addictionsoftware.com>
Date: Mon, 21 Aug 2017 14:50:22 +1000
Subject: [PATCH] Add common StringReplace function

---
 common/common.go                     |  5 +++++
 common/common_test.go                | 22 ++++++++++++++++++++++
 exchanges/bittrex/bittrex_wrapper.go |  4 ++--
 3 files changed, 29 insertions(+), 2 deletions(-)

diff --git a/common/common.go b/common/common.go
index 2921454f..1560e5e3 100644
--- a/common/common.go
+++ b/common/common.go
@@ -159,6 +159,11 @@ func TrimString(input, cutset string) string {
 	return strings.Trim(input, cutset)
 }
 
+// ReplaceString replaces a string with another
+func ReplaceString(input, old, new string, n int) string {
+	return strings.Replace(input, old, new, n)
+}
+
 // StringToUpper changes strings to uppercase
 func StringToUpper(input string) string {
 	return strings.ToUpper(input)
diff --git a/common/common_test.go b/common/common_test.go
index 6c5eca04..4422ceef 100644
--- a/common/common_test.go
+++ b/common/common_test.go
@@ -310,6 +310,28 @@ func TestTrimString(t *testing.T) {
 	}
 }
 
+// ReplaceString replaces a string with another
+func TestReplaceString(t *testing.T) {
+	t.Parallel()
+	currency := "BTC-USD"
+	expectedOutput := "BTCUSD"
+
+	actualResult := ReplaceString(currency, "-", "", -1)
+	if expectedOutput != actualResult {
+		t.Errorf(
+			"Test failed. Expected '%s'. Actual '%s'", expectedOutput, actualResult,
+		)
+	}
+
+	currency = "BTC-USD--"
+	actualResult = ReplaceString(currency, "-", "", 3)
+	if expectedOutput != actualResult {
+		t.Errorf(
+			"Test failed. Expected '%s'. Actual '%s'", expectedOutput, actualResult,
+		)
+	}
+}
+
 func TestRoundFloat(t *testing.T) {
 	t.Parallel()
 	originalInput := float64(1.4545445445)
diff --git a/exchanges/bittrex/bittrex_wrapper.go b/exchanges/bittrex/bittrex_wrapper.go
index 923acbf6..f2f01c42 100644
--- a/exchanges/bittrex/bittrex_wrapper.go
+++ b/exchanges/bittrex/bittrex_wrapper.go
@@ -2,9 +2,9 @@ package bittrex
 
 import (
 	"log"
-	"strings"
 	"time"
 
+	"github.com/thrasher-/gocryptotrader/common"
 	"github.com/thrasher-/gocryptotrader/currency/pair"
 	"github.com/thrasher-/gocryptotrader/exchanges"
 	"github.com/thrasher-/gocryptotrader/exchanges/orderbook"
@@ -34,7 +34,7 @@ func (b *Bittrex) Run() {
 				continue
 			}
 			currencies = append(currencies,
-				strings.Replace(exchangeProducts[x].MarketName, "-", "", -1))
+				common.ReplaceString(exchangeProducts[x].MarketName, "-", "", -1))
 		}
 		err = b.UpdateAvailableCurrencies(currencies)
 		if err != nil {