mcs/class/Microsoft.VisualBasic/Test/standalone/6877.vb

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  22
  23
  24 Imports Microsoft.VisualBasic
  25
  26 Public Class TestClass
  27     Public Function Test() As String
  28
  29         Dim fn As Integer
  30         Dim c1 As Char
  31         Dim cVBCr As Char
  32         Dim cVBLf As Char
  33         Dim strFileName As String
  34         Dim strPathName As String
  35
  36         '// make sure all files are closed
  37         Microsoft.VisualBasic.FileSystem.Reset()
  38
  39
  40         strPathName = System.IO.Directory.GetCurrentDirectory() + "\data\"
  41         strFileName = "6877.txt"
  42
  43         'if this file exists - kill it
  44         If (strFileName = Dir(strPathName & strFileName)) Then
  45             Kill(strPathName & strFileName)
  46         End If
  47
  48         ' Write text to file.
  49         fn = FreeFile()
  50         FileOpen(fn, strPathName & strFileName, OpenMode.Output)
  51         PrintLine(fn, "1234")
  52         FileClose(fn)
  53 
        ' Input text from a file.
        fn = FreeFile()
  54         FileOpen(fn, strPathName & strFileName, OpenMode.Binary)
  55         FileGet(fn, c1) 'read the string
  56         FileGet(fn, c1)
  57         FileGet(fn, c1)
  58         FileGet(fn, c1)
  59         FileGet(fn, cVBCr) 'read the Carridge
  60         FileGet(fn, cVBLf) 'read the line feed
  61         FileClose(fn)
  62
  63         If Asc(cVBCr) <> 13 Then Return "failed"
  64         If Asc(cVBLf) <> 10 Then Return "failed"
  65
  66         Return "success"
  67
  68     End Function
  69 End Class