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