diff options
Diffstat (limited to 'unittests')
| -rw-r--r-- | unittests/fix16_unittests.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/unittests/fix16_unittests.c b/unittests/fix16_unittests.c index 9a301a1..b63c25d 100644 --- a/unittests/fix16_unittests.c +++ b/unittests/fix16_unittests.c @@ -330,6 +330,36 @@ int main() TEST(failures == 0); } +#ifndef FIXMATH_NO_64BIT + { + COMMENT("Running linear interpolation test cases"); + + TEST(fix16_lerp8(0, 2, 0) == 0); + TEST(fix16_lerp8(0, 2, 127) == 0); + TEST(fix16_lerp8(0, 2, 128) == 1); + TEST(fix16_lerp8(0, 2, 255) == 1); + TEST(fix16_lerp8(fix16_minimum, fix16_maximum, 0) == fix16_minimum); + TEST(fix16_lerp8(fix16_minimum, fix16_maximum, 255) == (fix16_maximum - (1<<24))); + TEST(fix16_lerp8(-fix16_maximum, fix16_maximum, 128) == 0); + + TEST(fix16_lerp16(0, 2, 0) == 0); + TEST(fix16_lerp16(0, 2, 0x7fff) == 0); + TEST(fix16_lerp16(0, 2, 0x8000) == 1); + TEST(fix16_lerp16(0, 2, 0xffff) == 1); + TEST(fix16_lerp16(fix16_minimum, fix16_maximum, 0) == fix16_minimum); + TEST(fix16_lerp16(fix16_minimum, fix16_maximum, 0xffff) == (fix16_maximum - (1<<16))); + TEST(fix16_lerp16(-fix16_maximum, fix16_maximum, 0x8000) == 0); + + TEST(fix16_lerp32(0, 2, 0) == 0); + TEST(fix16_lerp32(0, 2, 0x7fffffff) == 0); + TEST(fix16_lerp32(0, 2, 0x80000000) == 1); + TEST(fix16_lerp32(0, 2, 0xffffffff) == 1); + TEST(fix16_lerp32(fix16_minimum, fix16_maximum, 0) == fix16_minimum); + TEST(fix16_lerp32(fix16_minimum, fix16_maximum, 0xffffffff) == (fix16_maximum - 1)); + TEST(fix16_lerp32(-fix16_maximum, fix16_maximum, 0x80000000) == 0); + } +#endif + if (status != 0) fprintf(stdout, "\n\nSome tests FAILED!\n"); |