98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: tests/testimage.h
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// Purpose: Unit test helpers for dealing with wxImage.
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// Author: Vadim Zeitlin
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// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TESTS_TESTIMAGE_H_
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#define _WX_TESTS_TESTIMAGE_H_
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#include "wx/image.h"
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namespace Catch
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{
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template <>
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struct StringMaker<wxImage>
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{
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static std::string convert(const wxImage& image)
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{
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return wxString::Format("image of size %d*%d with%s alpha",
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image.GetWidth(),
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image.GetHeight(),
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image.HasAlpha() ? "" : "out")
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.ToStdString();
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}
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};
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}
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class ImageRGBMatcher : public Catch::MatcherBase<wxImage>
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{
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public:
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ImageRGBMatcher(const wxImage& image)
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: m_image(image)
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{
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}
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bool match(const wxImage& other) const wxOVERRIDE
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{
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if ( other.GetWidth() != m_image.GetWidth() )
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return false;
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if ( other.GetHeight() != m_image.GetHeight() )
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return false;
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if ( memcmp(other.GetData(), m_image.GetData(),
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other.GetWidth()*other.GetHeight()*3) == 0 )
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return true;
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const unsigned char* d1 = m_image.GetData();
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const unsigned char* d2 = other.GetData();
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for ( int x = 0; x < m_image.GetWidth(); ++x )
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{
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for ( int y = 0; y < m_image.GetHeight(); ++y )
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{
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if ( *d1 != *d2 )
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{
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m_diffDesc.Printf
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(
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"first mismatch is at (%d, %d) which "
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"has value 0x%06x instead of the "
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"expected 0x%06x",
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x, y, *d2, *d1
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);
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break;
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}
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++d1;
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++d2;
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}
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}
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return false;
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}
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std::string describe() const wxOVERRIDE
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{
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std::string desc = "doesn't have the same RGB data as " +
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Catch::toString(m_image);
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if ( !m_diffDesc.empty() )
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desc += + ": " + m_diffDesc.ToStdString(wxConvUTF8);
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return desc;
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}
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private:
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const wxImage m_image;
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mutable wxString m_diffDesc;
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};
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inline ImageRGBMatcher RGBSameAs(const wxImage& image)
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{
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return ImageRGBMatcher(image);
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}
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#endif // _WX_TESTS_TESTIMAGE_H_
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