moving trunk for module inkscape

(bzr r1)

1 files changed, 58 insertions, 0 deletions

diff --git a/src/libnr/in-svg-plane-test.cpp b/src/libnr/in-svg-plane-test.cpp
new file mode 100644
index 000000000..f5620c32b
--- /dev/null
+++ b/src/libnr/in-svg-plane-test.cpp
@@ -0,0 +1,58 @@
+#include <glib/gmacros.h>
+#include <cmath>
+
+#include "libnr/in-svg-plane.h"
+#include "utest/utest.h"
+#include "isnan.h"
+
+int main(int argc, char *argv[])
+{
+    utest_start("in-svg-plane.h");
+
+    NR::Point const p3n4(3.0, -4.0);
+    NR::Point const p0(0.0, 0.0);
+    double const small = pow(2.0, -1070);
+    double const inf = 1e400;
+    double const nan = inf - inf;
+
+    NR::Point const small_left(-small, 0.0);
+    NR::Point const small_n3_4(-3.0 * small, 4.0 * small);
+    NR::Point const part_nan(3., nan);
+
+    assert(isNaN(nan));
+    assert(!isNaN(small));
+
+    UTEST_TEST("in_svg_plane") {
+        UTEST_ASSERT(in_svg_plane(p3n4));
+        UTEST_ASSERT(in_svg_plane(p0));
+        UTEST_ASSERT(in_svg_plane(small_left));
+        UTEST_ASSERT(in_svg_plane(small_n3_4));
+        UTEST_ASSERT(nan != nan);
+        UTEST_ASSERT(!in_svg_plane(NR::Point(nan, 3.)));
+        UTEST_ASSERT(!in_svg_plane(NR::Point(inf, nan)));
+        UTEST_ASSERT(!in_svg_plane(NR::Point(0., -inf)));
+        double const xs[] = {inf, -inf, nan, 1., -2., small, -small};
+        for (unsigned i = 0; i < G_N_ELEMENTS(xs); ++i) {
+            for (unsigned j = 0; j < G_N_ELEMENTS(xs); ++j) {
+                UTEST_ASSERT( in_svg_plane(NR::Point(xs[i], xs[j]))
+                              == (fabs(xs[i]) < inf &&
+                                  fabs(xs[j]) < inf   ) );
+            }
+        }
+    }
+
+    return ( utest_end()
+             ? EXIT_SUCCESS
+             : EXIT_FAILURE );
+}
+
+/*
+  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 :