Update nonce func and test coverage

exchanges/nonce/nonce_test.go

@@ -60,11 +60,26 @@ func TestString(t *testing.T) {
 func TestGetValue(t *testing.T) {
 	var nonce Nonce
 	timeNowNano := strconv.FormatInt(time.Now().UnixNano(), 10)
+	time.Sleep(time.Millisecond * 100)
 	nValue := nonce.GetValue("dingdong", true).String()
 
 	if timeNowNano == nValue {
 		t.Error("Test failed - GetValue() error, incorrect values")
 	}
+
+	if len(nValue) != 19 {
+		t.Error("Test failed - GetValue() error, incorrect values")
+	}
+
+	timeNowUnix := nonce.GetValue("dongding", false)
+	if len(timeNowUnix.String()) != 10 {
+		t.Error("Test failed - GetValue() error, incorrect values")
+	}
+
+	n := nonce.GetValue("dongding", false)
+	if n != timeNowUnix+1 {
+		t.Error("Test failed - GetValue() error, incorrect values")
+	}
 }
 
 func TestNonceConcurrency(t *testing.T) {

testdata/configtest.dat

@@ -42,9 +42,9 @@
   "Password": "12334",
   "Contacts": [
    {
-    "Name": "StyleGherkin",
-    "Number": "1231424",
-    "Enabled": true
+    "name": "StyleGherkin",
+    "number": "1231424",
+    "enabled": true
    }
   ]
  },
@@ -436,4 +436,4 @@
    }
   }
  ]
-}
+}