From 993e10c873ef92725082864464b33c6c9c1f3c8a Mon Sep 17 00:00:00 2001
From: Stephen Toub <stoub@microsoft.com>
Date: Wed, 6 May 2020 07:53:42 -0400
Subject: [PATCH] Remove duplicate tests from System.IO.FileSystem.Tests
 (#35842)

---
 src/libraries/System.IO.FileSystem/tests/FileInfo/Open.cs | 2 --
 src/libraries/System.IO.FileSystem/tests/TestData.cs      | 1 -
 2 files changed, 3 deletions(-)

diff --git a/src/libraries/System.IO.FileSystem/tests/FileInfo/Open.cs b/src/libraries/System.IO.FileSystem/tests/FileInfo/Open.cs
index 2927ab3..a071f5d 100644
--- a/src/libraries/System.IO.FileSystem/tests/FileInfo/Open.cs
+++ b/src/libraries/System.IO.FileSystem/tests/FileInfo/Open.cs
@@ -13,7 +13,6 @@ namespace System.IO.Tests
             return new FileInfo(path).Open(mode);
         }
 
-        [Theory, MemberData(nameof(StreamSpecifiers))]
         public override void FileModeAppend(string streamSpecifier)
         {
             using (FileStream fs = CreateFileStream(GetTestFilePath() + streamSpecifier, FileMode.Append))
@@ -23,7 +22,6 @@ namespace System.IO.Tests
             }
         }
 
-        [Theory, MemberData(nameof(StreamSpecifiers))]
         public override void FileModeAppendExisting(string streamSpecifier)
         {
             string fileName = GetTestFilePath() + streamSpecifier;
diff --git a/src/libraries/System.IO.FileSystem/tests/TestData.cs b/src/libraries/System.IO.FileSystem/tests/TestData.cs
index 190a3d8..c00f3fc 100644
--- a/src/libraries/System.IO.FileSystem/tests/TestData.cs
+++ b/src/libraries/System.IO.FileSystem/tests/TestData.cs
@@ -59,7 +59,6 @@ internal static class TestData
         {
             TheoryData<string> data = new TheoryData<string>
             {
-                "\0",
                 "middle\0path",
                 "trailing\0"
             };
-- 
2.7.4