mcs/class/Microsoft.VisualBasic/Test/standalone/6964.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         Dim str1 As String
  36         Dim str2 As String
  37
  38         '// make sure all files are closed
  39         Microsoft.VisualBasic.FileSystem.Reset()
  40
  41
  42         strPathName = System.IO.Directory.GetCurrentDirectory() + "\data\"
  43         strFileName = "6964.txt"
  44
  45         'if this file exists - kill it
  46         If (strFileName = Dir(strPathName & strFileName)) Then
  47             Kill(strPathName & strFileName)
  48         End If
  49
  50         ' Write text to file.
  51         fn = FreeFile()
  52         FileOpen(fn, strPathName & strFileName, OpenMode.Output)
  53         writeLine(fn, "1234")
  54         'omit output
  55         writeLine(fn)
  56         writeLine(fn, "abcd")
  57         FileClose(fn)
  58 
        ' Input binary text from a file.
        fn = FreeFile()
  59         FileOpen(fn, strPathName & strFileName, OpenMode.Binary)
  60         FileGet(fn, c1) 'read "
  61         FileGet(fn, c1) 'read the first string
  62         str1 = str1 & c1
  63         FileGet(fn, c1)
  64         str1 = str1 & c1
  65         FileGet(fn, c1)
  66         str1 = str1 & c1
  67         FileGet(fn, c1)
  68         str1 = str1 & c1
  69         FileGet(fn, c1) 'read "
  70         FileGet(fn, cVBCr) 'read the Carridge
  71         FileGet(fn, cVBLf) 'read the line feed
  72         'omit output
  73         FileGet(fn, cVBCr) 'read the Carridge
  74         FileGet(fn, cVBLf) 'read the line feed
  75
  76         FileGet(fn, c1) 'read "
  77         FileGet(fn, c1) 'read the second string
  78         str2 = str2 & c1
  79         FileGet(fn, c1)
  80         str2 = str2 & c1
  81         FileGet(fn, c1)
  82         str2 = str2 & c1
  83         FileGet(fn, c1)
  84         str2 = str2 & c1
  85         FileGet(fn, c1) 'read "
  86         FileClose(fn)
  87
  88         If Asc(cVBCr) <> 13 Then Return "failed to get Carrige Return"
  89         If Asc(cVBLf) <> 10 Then Return "failed to get Line Feed"
  90         If str1 <> "1234" Then Return "failed to get fisrt string"
  91         If str2 <> "abcd" Then Return "failed to get second string"
  92
  93         Return "success"
  94
  95     End Function
  96 End Class