Changeset e2776ff in mainline

Timestamp:

2020-08-27T14:41:26Z (4 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

a57c70c

Parents:

32066f2

git-author:

Jiri Svoboda <jiri@…> (2020-08-26 18:41:05)

git-committer:

Jiri Svoboda <jiri@…> (2020-08-27 14:41:26)

Message:

Unit test for gfx_coord_div_rneg()

File:

• uspace/lib/gfx/test/coord.c (modified) (1 diff)

uspace/lib/gfx/test/coord.c

@@ -34 +34 @@
 PCUT_TEST_SUITE(coord);
 
+/** gfx_coord_div_rneg rounds towards negative numbers */
+PCUT_TEST(coord_div_rneg)
+{
+        PCUT_ASSERT_INT_EQUALS(-3, gfx_coord_div_rneg(-7, 3));
+        PCUT_ASSERT_INT_EQUALS(-2, gfx_coord_div_rneg(-6, 3));
+        PCUT_ASSERT_INT_EQUALS(-2, gfx_coord_div_rneg(-5, 3));
+        PCUT_ASSERT_INT_EQUALS(-2, gfx_coord_div_rneg(-4, 3));
+        PCUT_ASSERT_INT_EQUALS(-1, gfx_coord_div_rneg(-3, 3));
+        PCUT_ASSERT_INT_EQUALS(-1, gfx_coord_div_rneg(-2, 3));
+        PCUT_ASSERT_INT_EQUALS(-1, gfx_coord_div_rneg(-1, 3));
+        PCUT_ASSERT_INT_EQUALS(0, gfx_coord_div_rneg(0, 3));
+        PCUT_ASSERT_INT_EQUALS(0, gfx_coord_div_rneg(1, 3));
+        PCUT_ASSERT_INT_EQUALS(0, gfx_coord_div_rneg(2, 3));
+        PCUT_ASSERT_INT_EQUALS(1, gfx_coord_div_rneg(3, 3));
+        PCUT_ASSERT_INT_EQUALS(1, gfx_coord_div_rneg(4, 3));
+        PCUT_ASSERT_INT_EQUALS(1, gfx_coord_div_rneg(5, 3));
+        PCUT_ASSERT_INT_EQUALS(2, gfx_coord_div_rneg(6, 3));
+}
+
 /** gfx_coord2_add should add two coordinate vectors */
 PCUT_TEST(coord2_add)