tests/file/filetest.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/file/filetest.cpp
   3 // Purpose:     wxFile unit test
   4 // Author:      Vadim Zeitlin
   5 // Created:     2009-09-12
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #if wxUSE_FILE
  21
  22 #include "wx/file.h"
  23
  24 #include "testfile.h"
  25
  26 // ----------------------------------------------------------------------------
  27 // test class
  28 // ----------------------------------------------------------------------------
  29
  30 class FileTestCase : public CppUnit::TestCase
  31 {
  32 public:
  33     FileTestCase() { }
  34
  35 private:
  36     CPPUNIT_TEST_SUITE( FileTestCase );
  37         CPPUNIT_TEST( ReadAll );
  38 #if wxUSE_UNICODE
  39         CPPUNIT_TEST( RoundTripUTF8 );
  40         CPPUNIT_TEST( RoundTripUTF16 );
  41         CPPUNIT_TEST( RoundTripUTF32 );
  42 #endif // wxUSE_UNICODE
  43         CPPUNIT_TEST( TempFile );
  44     CPPUNIT_TEST_SUITE_END();
  45
  46     void ReadAll();
  47 #if wxUSE_UNICODE
  48     void RoundTripUTF8() { DoRoundTripTest(wxConvUTF8); }
  49     void RoundTripUTF16() { DoRoundTripTest(wxMBConvUTF16()); }
  50     void RoundTripUTF32() { DoRoundTripTest(wxMBConvUTF32()); }
  51 #endif // wxUSE_UNICODE
  52
  53     void DoRoundTripTest(const wxMBConv& conv);
  54     void TempFile();
  55
  56     wxDECLARE_NO_COPY_CLASS(FileTestCase);
  57 };
  58
  59 // ----------------------------------------------------------------------------
  60 // CppUnit macros
  61 // ----------------------------------------------------------------------------
  62
  63 CPPUNIT_TEST_SUITE_REGISTRATION( FileTestCase );
  64 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( FileTestCase, "FileTestCase" );
  65
  66 // ----------------------------------------------------------------------------
  67 // tests implementation
  68 // ----------------------------------------------------------------------------
  69
  70 void FileTestCase::ReadAll()
  71 {
  72     TestFile tf;
  73
  74     const char* text = "Ream\nde";
  75
  76     {
  77         wxFile fout(tf.GetName(), wxFile::write);
  78         CPPUNIT_ASSERT( fout.IsOpened() );
  79         fout.Write(text, strlen(text));
  80         CPPUNIT_ASSERT( fout.Close() );
  81     }
  82
  83     {
  84         wxFile fin(tf.GetName(), wxFile::read);
  85         CPPUNIT_ASSERT( fin.IsOpened() );
  86
  87         wxString s;
  88         CPPUNIT_ASSERT( fin.ReadAll(&s) );
  89         CPPUNIT_ASSERT_EQUAL( text, s );
  90     }
  91 }
  92
  93 #if wxUSE_UNICODE
  94
  95 void FileTestCase::DoRoundTripTest(const wxMBConv& conv)
  96 {
  97     TestFile tf;
  98
  99     // Explicit length is needed because of the embedded NUL.
 100     const wxString data("Hello\0UTF!", 10);
 101
 102     {
 103         wxFile fout(tf.GetName(), wxFile::write);
 104         CPPUNIT_ASSERT( fout.IsOpened() );
 105
 106         CPPUNIT_ASSERT( fout.Write(data, conv) );
 107     }
 108
 109     {
 110         wxFile fin(tf.GetName(), wxFile::read);
 111         CPPUNIT_ASSERT( fin.IsOpened() );
 112
 113         const ssize_t len = fin.Length();
 114         wxCharBuffer buf(len);
 115         CPPUNIT_ASSERT_EQUAL( len, fin.Read(buf.data(), len) );
 116
 117         wxString dataReadBack(buf, conv, len);
 118         CPPUNIT_ASSERT_EQUAL( data, dataReadBack );
 119     }
 120 }
 121
 122 #endif // wxUSE_UNICODE
 123
 124 void FileTestCase::TempFile()
 125 {
 126     wxTempFile tmpFile;
 127     CPPUNIT_ASSERT( tmpFile.Open(wxT("test2")) && tmpFile.Write(wxT("the answer is 42")) );
 128     CPPUNIT_ASSERT( tmpFile.Commit() );
 129     CPPUNIT_ASSERT( wxRemoveFile(wxT("test2")) );
 130 }
 131
 132 #endif // wxUSE_FILE