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| author | Jasper van de Gronde <jasper.vandegronde@gmail.com> | 2008-07-01 18:18:32 +0000 |
|---|---|---|
| committer | jaspervdg <jaspervdg@users.sourceforge.net> | 2008-07-01 18:18:32 +0000 |
| commit | 6b90c6c8762da5f0dcd6c0f87a60f06cd0584ee6 (patch) | |
| tree | c467b605fde0b0ac632091d8212ad7532b7aa414 /src/helper | |
| parent | Adding use of GtkScaleButton when available (diff) | |
| download | inkscape-6b90c6c8762da5f0dcd6c0f87a60f06cd0584ee6.tar.gz inkscape-6b90c6c8762da5f0dcd6c0f87a60f06cd0584ee6.zip | |
CxxTest unit tests can now be built on Windows, also adds CxxTest versions of most UTEST unit tests. (These new CxxTest tests are not part of make check on Linux yet.)
(bzr r6106)
Diffstat (limited to 'src/helper')
| -rw-r--r-- | src/helper/units-test.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/helper/units-test.h b/src/helper/units-test.h new file mode 100644 index 000000000..f704b988a --- /dev/null +++ b/src/helper/units-test.h @@ -0,0 +1,88 @@ +#include <cxxtest/TestSuite.h>
+
+#include <helper/units.h>
+#include <glibmm/i18n.h>
+#include <math.h>
+
+
+/* N.B. Wrongly returns false if both near 0. (Not a problem for current users.) */
+static bool
+approx_equal(double const x, double const y)
+{
+ return fabs(x / y - 1) < 1e-15;
+}
+
+static double
+sp_units_get_points(double const x, SPUnit const &unit)
+{
+ SPUnit const &pt_unit = sp_unit_get_by_id(SP_UNIT_PT);
+ double const px = sp_units_get_pixels(x, unit);
+ return sp_pixels_get_units(px, pt_unit);
+}
+
+static double
+sp_points_get_units(double const pts, SPUnit const &unit)
+{
+ SPUnit const &pt_unit = sp_unit_get_by_id(SP_UNIT_PT);
+ double const px = sp_units_get_pixels(pts, pt_unit);
+ return sp_pixels_get_units(px, unit);
+}
+
+class UnitsTest : public CxxTest::TestSuite {
+public:
+
+ UnitsTest()
+ {
+ }
+ virtual ~UnitsTest() {}
+
+ void testConversions()
+ {
+ struct Case { double x; char const *abbr; double pts; } const tests[] = {
+ { 1.0, "pt", 1.0 },
+ { 5.0, "pt", 5.0 },
+ { 1.0, "in", 72.0 },
+ { 2.0, "in", 144.0 },
+ { 254., "mm", 720.0 },
+ { 254., "cm", 7200. },
+ { 254., "m", 720000. },
+ { 1.5, "mm", (15 * 72. / 254) }
+ };
+ for (unsigned i = 0; i < G_N_ELEMENTS(tests); ++i) {
+ Case const &c = tests[i];
+ SPUnit const &unit = *sp_unit_get_by_abbreviation(N_(c.abbr));
+
+ double const calc_pts = sp_units_get_points(c.x, unit);
+ TS_ASSERT(approx_equal(calc_pts, c.pts));
+
+ double const calc_x = sp_points_get_units(c.pts, unit);
+ TS_ASSERT(approx_equal(calc_x, c.x));
+
+ double tmp = c.x;
+ bool const converted_to_pts = sp_convert_distance(&tmp, &unit, SP_PS_UNIT);
+ TS_ASSERT(converted_to_pts);
+ TS_ASSERT(approx_equal(tmp, c.pts));
+
+ tmp = c.pts;
+ bool const converted_from_pts = sp_convert_distance(&tmp, SP_PS_UNIT, &unit);
+ TS_ASSERT(converted_from_pts);
+ TS_ASSERT(approx_equal(tmp, c.x));
+ }
+ }
+
+ void testUnitTable()
+ {
+ TS_ASSERT(sp_units_table_sane());
+ }
+};
+
+/*
+ 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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