1 #include <cxxtest/TestSuite.h>
3 #include <cmath>
4 #include <glib/gmacros.h>
6 #include <libnr/nr-rotate-fns.h>
8 class NrRotateFnsTest : public CxxTest::TestSuite
9 {
10 public:
12 NrRotateFnsTest()
13 {
14 }
15 virtual ~NrRotateFnsTest() {}
17 // createSuite and destroySuite get us per-suite setup and teardown
18 // without us having to worry about static initialization order, etc.
19 static NrRotateFnsTest *createSuite() { return new NrRotateFnsTest(); }
20 static void destroySuite( NrRotateFnsTest *suite ) { delete suite; }
24 void testRotateDegrees(void)
25 {
26 double const d[] = {
27 0, 90, 180, 270, 360, 45, 45.01, 44.99, 134, 135, 136, 314, 315, 317, 359, 361
28 };
29 for ( unsigned i = 0; i < G_N_ELEMENTS(d); ++i ) {
30 double const degrees = d[i];
31 NR::rotate const rot(rotate_degrees(degrees));
32 NR::rotate const rot_approx( M_PI * ( degrees / 180. ) );
33 TS_ASSERT( rotate_equalp(rot, rot_approx, 1e-12) );
35 NR::rotate const rot_inv(rotate_degrees(-degrees));
36 NR::rotate const rot_compl(rotate_degrees(360 - degrees));
37 TS_ASSERT( rotate_equalp(rot_inv, rot_compl, 1e-12) );
39 TS_ASSERT( !rotate_equalp(rot, rotate_degrees(degrees + 1), 1e-5) );
40 }
41 }
43 };
45 /*
46 Local Variables:
47 mode:c++
48 c-file-style:"stroustrup"
49 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
50 indent-tabs-mode:nil
51 fill-column:99
52 End:
53 */
54 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :