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///////////////////////////////////////////////////////////////////////////////
// Name: tests/graphics/ellipsization.cpp
// Purpose: wxControlBase::*Ellipsize* unit test
// Author: Francesco Montorsi
// Created: 2010-03-10
// Copyright: (c) 2010 Francesco Montorsi
///////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
#include "testprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/control.h"
#include "wx/dcmemory.h"
// ----------------------------------------------------------------------------
// test class
// ----------------------------------------------------------------------------
class EllipsizationTestCase : public CppUnit::TestCase
{
public:
EllipsizationTestCase() { }
private:
CPPUNIT_TEST_SUITE( EllipsizationTestCase );
CPPUNIT_TEST( NormalCase );
CPPUNIT_TEST( EnoughSpace );
CPPUNIT_TEST( VeryLittleSpace );
CPPUNIT_TEST( HasThreeDots );
CPPUNIT_TEST_SUITE_END();
void NormalCase();
void EnoughSpace();
void VeryLittleSpace();
void HasThreeDots();
DECLARE_NO_COPY_CLASS(EllipsizationTestCase)
};
// register in the unnamed registry so that these tests are run by default
CPPUNIT_TEST_SUITE_REGISTRATION( EllipsizationTestCase );
// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( EllipsizationTestCase, "EllipsizationTestCase" );
void EllipsizationTestCase::NormalCase()
{
wxMemoryDC dc;
static const char *stringsToTest[] =
{
"N",
".",
"x",
"foobar",
"\xCE\xB1", // U03B1 (GREEK SMALL LETTER ALPHA)
"Another test",
"a very very very very very very very long string",
// alpha+beta+gamma+delta+epsilon+zeta+eta+theta+iota
"\xCE\xB1\xCE\xB2\xCE\xB3\xCE\xB4\xCE\xB5\xCE\xB6\xCE\xB7\xCE\xB8\xCE\xB9",
"\t", "\t\t\t\t\t", "a\tstring\twith\ttabs",
"\n", "\n\n\n\n\n", "a\nstring\nwith\nnewlines",
"&", "&&&&&&&", "a&string&with&newlines",
"\t\n&", "a\t\n&string\t\n&with\t\n&many\t\n&chars"
};
static const int flagsToTest[] =
{
0,
wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS,
wxELLIPSIZE_FLAGS_EXPAND_TABS,
wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS | wxELLIPSIZE_FLAGS_EXPAND_TABS
};
static const wxEllipsizeMode modesToTest[] =
{
wxELLIPSIZE_START,
wxELLIPSIZE_MIDDLE,
wxELLIPSIZE_END
};
int widthsToTest[] = { 50, 100, 150 };
for ( unsigned int s = 0; s < WXSIZEOF(stringsToTest); s++ )
{
const wxString str = wxString::FromUTF8(stringsToTest[s]);
for ( unsigned int f = 0; f < WXSIZEOF(flagsToTest); f++ )
{
for ( unsigned int m = 0; m < WXSIZEOF(modesToTest); m++ )
{
for ( unsigned int w = 0; w < WXSIZEOF(widthsToTest); w++ )
{
wxString ret = wxControl::Ellipsize
(
str,
dc,
modesToTest[m],
widthsToTest[w],
flagsToTest[f]
);
WX_ASSERT_MESSAGE
(
(
"invalid ellipsization for \"%s\" (%dpx, should be <=%dpx)",
str,
dc.GetMultiLineTextExtent(ret).GetWidth(),
widthsToTest[w]
),
dc.GetMultiLineTextExtent(ret).GetWidth() <= widthsToTest[w]
);
}
}
}
}
}
void EllipsizationTestCase::EnoughSpace()
{
// No ellipsization should occur if there's plenty of space.
wxMemoryDC dc;
CPPUNIT_ASSERT_EQUAL("some label",
wxControl::Ellipsize("some label", dc, wxELLIPSIZE_START, 200));
CPPUNIT_ASSERT_EQUAL("some label",
wxControl::Ellipsize("some label", dc, wxELLIPSIZE_MIDDLE, 200));
CPPUNIT_ASSERT_EQUAL("some label",
wxControl::Ellipsize("some label", dc, wxELLIPSIZE_END, 200));
}
void EllipsizationTestCase::VeryLittleSpace()
{
// If there's not enough space, the shortened label should still contain "..." and one character
wxMemoryDC dc;
CPPUNIT_ASSERT_EQUAL("...l",
wxControl::Ellipsize("some label", dc, wxELLIPSIZE_START, 5));
CPPUNIT_ASSERT_EQUAL("s...",
wxControl::Ellipsize("some label", dc, wxELLIPSIZE_MIDDLE, 5));
CPPUNIT_ASSERT_EQUAL("s...",
wxControl::Ellipsize("some label1", dc, wxELLIPSIZE_MIDDLE, 5));
CPPUNIT_ASSERT_EQUAL("s...",
wxControl::Ellipsize("some label", dc, wxELLIPSIZE_END, 5));
}
void EllipsizationTestCase::HasThreeDots()
{
wxMemoryDC dc;
CPPUNIT_ASSERT( wxControl::Ellipsize("some longer text", dc, wxELLIPSIZE_START, 80).StartsWith("...") );
CPPUNIT_ASSERT( !wxControl::Ellipsize("some longer text", dc, wxELLIPSIZE_START, 80).EndsWith("...") );
CPPUNIT_ASSERT( wxControl::Ellipsize("some longer text", dc, wxELLIPSIZE_END, 80).EndsWith("...") );
CPPUNIT_ASSERT( wxControl::Ellipsize("some longer text", dc, wxELLIPSIZE_MIDDLE, 80).Contains("...") );
CPPUNIT_ASSERT( !wxControl::Ellipsize("some longer text", dc, wxELLIPSIZE_MIDDLE, 80).StartsWith("...") );
CPPUNIT_ASSERT( !wxControl::Ellipsize("some longer text", dc, wxELLIPSIZE_MIDDLE, 80).EndsWith("...") );
}
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