Address PR feedback

- Fixed test failures on Linux
- Fixes test failures when run with different cultures
- Fixed ordering of arguments to Assert.Equal
- Changed several Assert.Equal to be Assert.Same
- Added some missing Assert.True calls
- Changed several [Facts] to be [Theory]s
- Removed some stale comments
- Added copyright header to all new .cs files
- A few other miscellaneous things...

1 files changed, 4 insertions, 13 deletions

diff --git a/src/System.IO/tests/StringReader/StringReaderCtorTests.cs b/src/System.IO/tests/StringReader/StringReaderCtorTests.cs
index 39d3f24bee..e967a6c247 100644
--- a/src/System.IO/tests/StringReader/StringReaderCtorTests.cs
+++ b/src/System.IO/tests/StringReader/StringReaderCtorTests.cs
@@ -1,3 +1,6 @@
+// Copyright (c) Microsoft. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
 using System;
 using System.IO;
 using Xunit;
@@ -9,19 +12,7 @@ namespace StringReaderTests
         [Fact]
         public static void StringReaderWithNullString()
         {
-            // [] Null Argument should store null string
-            //-----------------------------------------------------------
-
-            Assert.Throws<ArgumentNullException>(() =>
-            {
-                StringReader sr = new StringReader(null);
-                String strTemp = sr.ReadToEnd();
-                sr.ReadLine();
-                sr.Peek();
-                sr.Read();
-                sr.Dispose();
-            });            
-
+            Assert.Throws<ArgumentNullException>(() => new StringReader(null));
         }
 
         [Fact]