Remove duplicate tests from System.IO.FileSystem.Tests (#35842)

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 (file)
--- 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 (file)
--- 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"
             };