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/*************************************************************************
** MatrixTest.cpp **
** **
** This file is part of dvisvgm -- the DVI to SVG converter **
** Copyright (C) 2005-2011 Martin Gieseking <martin.gieseking@uos.de> **
** **
** This program is free software; you can redistribute it and/or **
** modify it under the terms of the GNU General Public License as **
** published by the Free Software Foundation; either version 3 of **
** the License, or (at your option) any later version. **
** **
** This program is distributed in the hope that it will be useful, but **
** WITHOUT ANY WARRANTY; without even the implied warranty of **
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the **
** GNU General Public License for more details. **
** **
** You should have received a copy of the GNU General Public License **
** along with this program; if not, see <http://www.gnu.org/licenses/>. **
*************************************************************************/
#include <gtest/gtest.h>
#include <sstream>
#include "Matrix.h"
using std::ostringstream;
TEST(MatrixTest, svg) {
double v1[] = {1,2,3,4,5,6,7,8,9};
Matrix m1(v1);
ostringstream oss;
m1.write(oss);
EXPECT_EQ(oss.str(), "((1,2,3),(4,5,6),(7,8,9))");
EXPECT_EQ(m1.getSVG(), "matrix(1 4 2 5 3 6)");
double v2[] = {1,2};
Matrix m2(v2, 2);
oss.str("");
m2.write(oss);
EXPECT_EQ(oss.str(), "((1,2,0),(0,1,0),(0,0,1))");
EXPECT_EQ(m2.getSVG(), "matrix(1 0 2 1 0 0)");
}
TEST(MatrixTest, transpose) {
double v[] = {1,2,3,4,5,6,7,8,9};
Matrix m(v);
m.transpose();
ostringstream oss;
m.write(oss);
EXPECT_EQ(oss.str(), "((1,4,7),(2,5,8),(3,6,9))");
EXPECT_EQ(m.getSVG(), "matrix(1 2 4 5 7 8)");
}
TEST(MatrixTest, checks) {
Matrix m(1);
EXPECT_TRUE(m.isIdentity());
double tx, ty;
EXPECT_TRUE(m.isTranslation(tx, ty));
EXPECT_EQ(tx, 0);
EXPECT_EQ(ty, 0);
m.translate(1,2);
EXPECT_TRUE(m.isTranslation(tx, ty));
EXPECT_EQ(tx, 1);
EXPECT_EQ(ty, 2);
m.scale(2, 2);
EXPECT_FALSE(m.isTranslation(tx, ty));
}
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