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#include <cxxtest/TestSuite.h>
#include <cmath>
#include <libnr/nr-matrix.h>
#include <libnr/nr-matrix-ops.h>
#include <libnr/nr-matrix-fns.h> /* identity, matrix_equalp */
#include <libnr/nr-point-fns.h>
#include <libnr/nr-rotate.h>
#include <libnr/nr-rotate-fns.h>
#include <libnr/nr-rotate-ops.h>
using NR::X;
using NR::Y;
class NrRotateTest : public CxxTest::TestSuite
{
public:
NrRotateTest() :
m_id( NR::identity() ),
r_id( 0.0 ),
rot234( .234 ),
b( -2.0, 3.0 ),
rot180( NR::Point(-1.0, 0.0) )
{
}
virtual ~NrRotateTest() {}
// createSuite and destroySuite get us per-suite setup and teardown
// without us having to worry about static initialization order, etc.
static NrRotateTest *createSuite() { return new NrRotateTest(); }
static void destroySuite( NrRotateTest *suite ) { delete suite; }
NR::Matrix const m_id;
NR::rotate const r_id;
NR::rotate const rot234;
NR::Point const b;
NR::rotate const rot180;
void testCtorsCompares(void)
{
TS_ASSERT_EQUALS( r_id, r_id );
TS_ASSERT_EQUALS( rot234, rot234 );
TS_ASSERT_DIFFERS( rot234, r_id );
TS_ASSERT_EQUALS( r_id, NR::rotate(NR::Point(1.0, 0.0)) );
TS_ASSERT_EQUALS( NR::Matrix(r_id), m_id );
TS_ASSERT( NR::Matrix(r_id).test_identity() );
TS_ASSERT(rotate_equalp(rot234, NR::rotate(NR::Point(cos(.234), sin(.234))), 1e-12));
}
void testAssignmentOp(void)
{
NR::rotate rot234_eq(r_id);
rot234_eq = rot234;
TS_ASSERT_EQUALS( rot234, rot234_eq );
TS_ASSERT_DIFFERS( rot234_eq, r_id );
}
void testInverse(void)
{
TS_ASSERT_EQUALS( r_id.inverse(), r_id );
TS_ASSERT_EQUALS( rot234.inverse(), NR::rotate(-.234) );
}
void testOpStarPointRotate(void)
{
TS_ASSERT_EQUALS( b * r_id, b );
TS_ASSERT_EQUALS( b * rot180, -b );
TS_ASSERT_EQUALS( b * rot234, b * NR::Matrix(rot234) );
TS_ASSERT(point_equalp(b * NR::rotate(M_PI / 2),
NR::rot90(b),
1e-14));
TS_ASSERT_EQUALS( b * rotate_degrees(90.), NR::rot90(b) );
}
void testOpStarRotateRotate(void)
{
TS_ASSERT_EQUALS( r_id * r_id, r_id );
TS_ASSERT_EQUALS( rot180 * rot180, r_id );
TS_ASSERT_EQUALS( rot234 * r_id, rot234 );
TS_ASSERT_EQUALS( r_id * rot234, rot234 );
TS_ASSERT( rotate_equalp(rot234 * rot234.inverse(), r_id, 1e-14) );
TS_ASSERT( rotate_equalp(rot234.inverse() * rot234, r_id, 1e-14) );
TS_ASSERT( rotate_equalp(( NR::rotate(0.25) * NR::rotate(.5) ),
NR::rotate(.75),
1e-10) );
}
void testOpDivRotateRotate(void)
{
TS_ASSERT_EQUALS( rot234 / r_id, rot234 );
TS_ASSERT_EQUALS( rot234 / rot180, rot234 * rot180 );
TS_ASSERT( rotate_equalp(rot234 / rot234, r_id, 1e-14) );
TS_ASSERT( rotate_equalp(r_id / rot234, rot234.inverse(), 1e-14) );
}
};
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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