tests/graphics/ellipsization.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        tests/graphics/ellipsization.cpp
   3 // Purpose:     wxControlBase::*Ellipsize* unit test
   4 // Author:      Francesco Montorsi
   5 // Created:     2010-03-10
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2010 Francesco Montorsi
   8 ///////////////////////////////////////////////////////////////////////////////
   9
  10 // ----------------------------------------------------------------------------
  11 // headers
  12 // ----------------------------------------------------------------------------
  13
  14 #include "testprec.h"
  15
  16 #ifdef __BORLANDC__
  17     #pragma hdrstop
  18 #endif
  19
  20 #include "wx/control.h"
  21 #include "wx/dcmemory.h"
  22
  23 // ----------------------------------------------------------------------------
  24 // test class
  25 // ----------------------------------------------------------------------------
  26
  27 class EllipsizationTestCase : public CppUnit::TestCase
  28 {
  29 public:
  30     EllipsizationTestCase() { }
  31
  32 private:
  33     CPPUNIT_TEST_SUITE( EllipsizationTestCase );
  34         CPPUNIT_TEST( Ellipsize );
  35     CPPUNIT_TEST_SUITE_END();
  36
  37     void Ellipsize();
  38
  39     DECLARE_NO_COPY_CLASS(EllipsizationTestCase)
  40 };
  41
  42 // register in the unnamed registry so that these tests are run by default
  43 CPPUNIT_TEST_SUITE_REGISTRATION( EllipsizationTestCase );
  44
  45 // also include in it's own registry so that these tests can be run alone
  46 CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( EllipsizationTestCase, "EllipsizationTestCase" );
  47
  48 void EllipsizationTestCase::Ellipsize()
  49 {
  50     wxMemoryDC dc;
  51
  52     wxString stringsToTest[] =
  53     {
  54         "N", ".", "x", "foobar", wxS("\u03B1"), "Another test", "a very very very very very very very long string",
  55         "\xCE\xB1\xCE\xB2\xCE\xB3\xCE\xB4\xCE\xB5\xCE\xB6\xCE\xB7\xCE\xB8\xCE\xB9",
  56             // alpha+beta+gamma+delta+epsilon+zeta+eta+theta+iota
  57         "\t", "\t\t\t\t\t", "a\tstring\twith\ttabs",
  58         "\n", "\n\n\n\n\n", "a\nstring\nwith\nnewlines",
  59         "&", "&&&&&&&", "a&string&with&newlines",
  60         "\t\n&", "a\t\n&string\t\n&with\t\n&many\t\n&chars"
  61     };
  62     int flagsToTest[] = { 0, wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS, wxELLIPSIZE_FLAGS_EXPAND_TABS,
  63                           wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS|wxELLIPSIZE_FLAGS_EXPAND_TABS };
  64     wxEllipsizeMode modesToTest[] = { wxELLIPSIZE_START, wxELLIPSIZE_MIDDLE, wxELLIPSIZE_END };
  65     int widthsToTest[] = { 0, 1, 2, 3, 10, 20, 100 };
  66
  67     for (unsigned int s=0; s<WXSIZEOF(stringsToTest); s++)
  68         for (unsigned int f=0; f<WXSIZEOF(flagsToTest); f++)
  69             for (unsigned int m=0; m<WXSIZEOF(modesToTest); m++)
  70                 for (unsigned int w=0; w<WXSIZEOF(widthsToTest); w++)
  71                 {
  72                     wxString ret = wxControlBase::Ellipsize(stringsToTest[s], dc, modesToTest[m],
  73                                                             widthsToTest[w], flagsToTest[f]);
  74
  75                     CPPUNIT_ASSERT_MESSAGE((std::string)("invalid ellipsization for: " + stringsToTest[s]),
  76                                            dc.GetMultiLineTextExtent(ret).GetWidth() <= widthsToTest[w]);
  77                 }
  78 }