From b22f0551fa63c8485ebfa4deb37cd1a91d03f681 Mon Sep 17 00:00:00 2001
From: ErickSkrauch <erickskrauch@yandex.ru>
Date: Thu, 13 Apr 2017 14:20:04 +0300
Subject: [PATCH] =?UTF-8?q?=D0=9D=D0=B5=20=D0=B4=D0=BE=D0=B1=D0=B0=D0=B2?=
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---
 lib/tools/tools.go      |  7 ++++++-
 lib/tools/tools_test.go | 10 ++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/lib/tools/tools.go b/lib/tools/tools.go
index 7e5158b..96ad886 100644
--- a/lib/tools/tools.go
+++ b/lib/tools/tools.go
@@ -30,7 +30,12 @@ func BuildKey(username string) string {
 }
 
 func BuildElyUrl(route string) string {
-	return "http://ely.by" + route
+	prefix := "http://ely.by"
+	if !strings.HasPrefix(route, prefix) {
+		route = prefix + route
+	}
+
+	return route
 }
 
 func getCurrentHour() int64 {
diff --git a/lib/tools/tools_test.go b/lib/tools/tools_test.go
index bf7b7f1..cb6fd37 100644
--- a/lib/tools/tools_test.go
+++ b/lib/tools/tools_test.go
@@ -20,3 +20,13 @@ func TestBuildKey(t *testing.T) {
 		t.Error("Function shound convert string to lower case and concatenate it with usernmae:")
 	}
 }
+
+func TestBuildElyUrl(t *testing.T) {
+	if BuildElyUrl("/route") != "http://ely.by/route" {
+		t.Error("Function should add prefix to the provided relative url.")
+	}
+
+	if BuildElyUrl("http://ely.by/test/route") != "http://ely.by/test/route" {
+		t.Error("Function should do not add prefix to the provided prefixed url.")
+	}
+}