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[tests] Add RGB<->HLS roundtrip test unit

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The ClutterColor conformance test should have a unit for verifying
the RGB<->HLS conversion code, especially the ability to roundtrip
between the two colorspaces.
This commit is contained in:
Emmanuele Bassi 2009-07-27 11:46:26 +01:00
parent 894fe4ba93
commit db2fda9c43
2 changed files with 70 additions and 0 deletions
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69
tests/conform/test-color.c
View file

@ -3,6 +3,75 @@
#include "test-conform-common.h"
void
test_color_hls_roundtrip (TestConformSimpleFixture *fixture,
gconstpointer data)
{
ClutterColor color;
gfloat hue, luminance, saturation;
/* test luminance only */
clutter_color_from_string (&color, "#7f7f7f");
g_assert_cmpint (color.red, ==, 0x7f);
g_assert_cmpint (color.green, ==, 0x7f);
g_assert_cmpint (color.blue, ==, 0x7f);
clutter_color_to_hls (&color, &hue, &luminance, &saturation);
g_assert_cmpfloat (hue, ==, 0.0);
g_assert (luminance >= 0.0 && luminance <= 1.0);
g_assert_cmpfloat (saturation, ==, 0.0);
if (g_test_verbose ())
{
g_print ("RGB = { %x, %x, %x }, HLS = { %.2f, %.2f, %.2f }\n",
color.red,
color.green,
color.blue,
hue,
luminance,
saturation);
}
color.red = color.green = color.blue = 0;
clutter_color_from_hls (&color, hue, luminance, saturation);
g_assert_cmpint (color.red, ==, 0x7f);
g_assert_cmpint (color.green, ==, 0x7f);
g_assert_cmpint (color.blue, ==, 0x7f);
/* full conversion */
clutter_color_from_string (&color, "#7f8f7f");
color.alpha = 255;
g_assert_cmpint (color.red, ==, 0x7f);
g_assert_cmpint (color.green, ==, 0x8f);
g_assert_cmpint (color.blue, ==, 0x7f);
clutter_color_to_hls (&color, &hue, &luminance, &saturation);
g_assert (hue >= 0.0 && hue < 360.0);
g_assert (luminance >= 0.0 && luminance <= 1.0);
g_assert (saturation >= 0.0 && saturation <= 1.0);
if (g_test_verbose ())
{
g_print ("RGB = { %x, %x, %x }, HLS = { %.2f, %.2f, %.2f }\n",
color.red,
color.green,
color.blue,
hue,
luminance,
saturation);
}
color.red = color.green = color.blue = 0;
clutter_color_from_hls (&color, hue, luminance, saturation);
g_assert_cmpint (color.red, ==, 0x7f);
g_assert_cmpint (color.green, ==, 0x8f);
g_assert_cmpint (color.blue, ==, 0x7f);
/* the alpha channel should be untouched */
g_assert_cmpint (color.alpha, ==, 255);
}
void
test_color_from_string (TestConformSimpleFixture *fixture,
gconstpointer data)

1
tests/conform/test-conform-main.c
View file

@ -154,6 +154,7 @@ main (int argc, char **argv)
TEST_CONFORM_SIMPLE ("/color", test_color_from_string);
TEST_CONFORM_SIMPLE ("/color", test_color_to_string);
TEST_CONFORM_SIMPLE ("/color", test_color_hls_roundtrip);
TEST_CONFORM_SIMPLE ("/units", test_units_constructors);
TEST_CONFORM_SIMPLE ("/units", test_units_string);