Merge pull request #2698 from esdrubal/iosxmlarray

[mono.git] / mcs / class / corlib / Test / System.IO / FileStreamTest.cs

diff --git a/mcs/class/corlib/Test/System.IO/FileStreamTest.cs b/mcs/class/corlib/Test/System.IO/FileStreamTest.cs
index be6236d6a0700d5c07c399ad02479732d13bd050..84a9d638ed6bed978c8f2595ae5e2fd0b9328c4d 100644 (file)
--- a/mcs/class/corlib/Test/System.IO/FileStreamTest.cs
+++ b/mcs/class/corlib/Test/System.IO/FileStreamTest.cs
@@ -1660,6 +1660,25 @@ namespace MonoTests.System.IO
                        
                }
 
+               [Test]
+               public void OpenCharDeviceRepeatedly ()
+               {
+                       // https://bugzilla.xamarin.com/show_bug.cgi?id=38408
+                       try {
+                               using (var f = new FileStream ("/dev/zero", FileMode.Open))
+                               {
+                               }
+                       } catch (FileNotFoundException) {
+                               // Only run this test on platforms where /dev/zero exists
+                               Assert.Ignore();
+                       }
+
+                       // this shouldn't throw
+                       using (var g = new FileStream ("/dev/zero", FileMode.Open))
+                       {
+                       }
+               }
+
 #if !MOBILE
                [Test]
                public void WriteWithExposedHandle ()
@@ -1706,5 +1725,30 @@ namespace MonoTests.System.IO
                        }
                }
 #endif
+
+               [Test] // Covers #11699
+               public void ReadWriteFileLength ()
+               {
+                       int bufferSize = 128;
+                       int readLength = 1;
+                       int writeLength = bufferSize + 1;
+
+                       string path = TempFolder + DSC + "readwritefilelength.tmp";
+
+                       try {
+                               File.WriteAllBytes (path, new byte [readLength + 1]);
+
+                               using (var file = new FileStream (path, FileMode.Open, FileAccess.ReadWrite, FileShare.Read,
+                                                                                                bufferSize, FileOptions.SequentialScan))
+                               {
+                                       file.Read (new byte [readLength], 0, readLength);
+                                       file.Write (new byte [writeLength], 0, writeLength);
+
+                                       Assert.AreEqual (readLength + writeLength, file.Length);
+                               }
+                       } finally {
+                               DeleteFile (path);
+                       }
+               }
        }
 }