change assumptions around whitespace strings

src/Discord.Net.Core/Format.cs

@@ -47,8 +47,10 @@ namespace Discord
         /// <returns>Gets the formatted quote text.</returns> // TODO: better xmldoc
         public static string Quote(string text)
         {
-            if (text == null)
-                return null;
+            // do not modify null or whitespace text
+            // whitespace does not get quoted properly
+            if (string.IsNullOrWhiteSpace(text))
+                return text;
 
             StringBuilder result = new StringBuilder();
 

test/Discord.Net.Tests.Unit/FormatTests.cs

@@ -35,9 +35,9 @@ namespace Discord
             Assert.Null(Format.Quote(null));
         }
         [Theory]
-        [InlineData("", "> ")]
-        [InlineData("\n", "> \n")]
-        [InlineData("\n ", "> \n>  ")]
+        [InlineData("", "")]
+        [InlineData("\n", "\n")]
+        [InlineData("foo\n\nbar", "> foo\n> \n> bar")]
         [InlineData("input", "> input")] // single line
         // should work with CR or CRLF
         [InlineData("inb4\ngreentext", "> inb4\n> greentext")]