Use InvariantCulture for bytes

Camelotia.Presentation.Tests/ByteConverterTests.cs

@@ -8,10 +8,10 @@ namespace Camelotia.Presentation.Tests
     {
         [Theory]
         [InlineData(0, "0B")]
-        [InlineData(520400, "520,4KB")]
+        [InlineData(520400, "520.4KB")]
         [InlineData(520040000, "520MB")]
-        [InlineData(520068000, "520,1MB")]
-        [InlineData(520185000000, "520,2GB")]
+        [InlineData(520068000, "520.1MB")]
+        [InlineData(520185000000, "520.2GB")]
         public void ByteConverterShouldCalculateWithNoPrecisionSupplied(long byteCount, string expectedValue)
         {
             var stringValue = ByteConverter.BytesToString(byteCount);
@@ -21,10 +21,10 @@ namespace Camelotia.Presentation.Tests
         [Theory]
         [InlineData(115, 1, "115B")]
         [InlineData(115, 3, "115B")]
-        [InlineData(520348, 3, "520,348KB")]
-        [InlineData(520462400, 3, "520,462MB")]
-        [InlineData(520573990000, 3, "520,574GB")]
-        [InlineData(520124960000, 3, "520,125GB")]
+        [InlineData(520348, 3, "520.348KB")]
+        [InlineData(520462400, 3, "520.462MB")]
+        [InlineData(520573990000, 3, "520.574GB")]
+        [InlineData(520124960000, 3, "520.125GB")]
         public void ByteConverterShouldCalculate(long byteCount, int precision, string expectedValue)
         {
             var stringValue = ByteConverter.BytesToString(byteCount, precision);

Camelotia.Services/Models/ByteConverter.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 
 namespace Camelotia.Services.Models
 {
@@ -13,7 +14,8 @@ namespace Camelotia.Services.Models
             var bytes = Math.Abs(byteCount);
             var place = Convert.ToInt32(Math.Floor(Math.Log(bytes, 1000)));
             var num = Math.Round(bytes / Math.Pow(1000, place), decimalPrecision);
-            return (Math.Sign(byteCount) * num) + suf[place];
+            var digit = Math.Sign(byteCount) * num;
+            return digit.ToString(CultureInfo.InvariantCulture) + suf[place];
         }
     }
 }