Pin culture of the size formatter

Author: Kaliumhexacyanoferrat

Modules/DirectoryBrowsing/Provider/FileSizeFormatter.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Globalization;
 
 namespace GenHTTP.Modules.DirectoryBrowsing.Provider
 {
@@ -22,19 +23,19 @@ public static string Format(ulong? bytes)
 
                 if (bytes > TERABYTES)
                 {
-                    return Math.Round(b / TERABYTES, 2) + " TB";
+                    return Math.Round(b / TERABYTES, 2).ToString(CultureInfo.InvariantCulture) + " TB";
                 }
                 if (bytes > GIGABYTES)
                 {
-                    return Math.Round(b / GIGABYTES, 2) + " GB";
+                    return Math.Round(b / GIGABYTES, 2).ToString(CultureInfo.InvariantCulture) + " GB";
                 }
                 else if (bytes > MEGABYTES)
                 {
-                    return Math.Round(b / MEGABYTES, 2) + " MB";
+                    return Math.Round(b / MEGABYTES, 2).ToString(CultureInfo.InvariantCulture) + " MB";
                 }
                 else if (bytes > KILOBYTES)
                 {
-                    return Math.Round(b / KILOBYTES, 2) + " KB";
+                    return Math.Round(b / KILOBYTES, 2).ToString(CultureInfo.InvariantCulture) + " KB";
                 }
 
                 return $"{bytes} Bytes";

Testing/Acceptance/Modules/DirectoryBrowsing/FormatterTest.cs

@@ -13,13 +13,13 @@ public void TestFormatting()
         {
             Assert.AreEqual("512 Bytes", FileSizeFormatter.Format(512));
 
-            Assert.AreEqual("2,78 KB", FileSizeFormatter.Format(2842));
+            Assert.AreEqual("2.78 KB", FileSizeFormatter.Format(2842));
 
-            Assert.AreEqual("2,78 MB", FileSizeFormatter.Format(2842 * 1024));
+            Assert.AreEqual("2.78 MB", FileSizeFormatter.Format(2842 * 1024));
 
-            Assert.AreEqual("2,78 GB", FileSizeFormatter.Format(2842L * 1024 * 1024));
+            Assert.AreEqual("2.78 GB", FileSizeFormatter.Format(2842L * 1024 * 1024));
 
-            Assert.AreEqual("2,78 TB", FileSizeFormatter.Format(2842L * 1024 * 1024 * 1024));
+            Assert.AreEqual("2.78 TB", FileSizeFormatter.Format(2842L * 1024 * 1024 * 1024));
         }
 
     }