+++ /dev/null
-#include "StabilityTest.hpp"
-
-#include "rand/GaloisLFSR.hpp"
-#include "rand/SimplexNoise.hpp"
-#include "rand/WorleyNoise.hpp"
-
-#include <cstdint>
-#include <string>
-#include <sstream>
-#include <glm/gtx/io.hpp>
-
-CPPUNIT_TEST_SUITE_REGISTRATION(blobs::rand::test::StabilityTest);
-
-using namespace std;
-
-
-namespace blobs {
-namespace rand {
-namespace test {
-
-void StabilityTest::setUp() {
-
-}
-
-void StabilityTest::tearDown() {
-
-}
-
-
-void StabilityTest::testRNG() {
- GaloisLFSR random(0);
- uint16_t value;
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #1 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #2 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #3 from RNG",
- uint16_t(0xB000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #4 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #5 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #6 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #7 from RNG",
- uint16_t(0x4500), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #8 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #9 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #10 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #11 from RNG",
- uint16_t(0x2E70), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #12 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #13 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #14 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #15 from RNG",
- uint16_t(0x1011), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #16 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #17 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #18 from RNG",
- uint16_t(0xB000), value
- );
- value = random.Next<uint16_t>();
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #19 from RNG (using Next())",
- uint16_t(0x0B0B), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #20 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #21 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #22 from RNG",
- uint16_t(0x1500), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #23 from RNG",
- uint16_t(0x0454), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #24 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #25 from RNG",
- uint16_t(0x0000), value
- );
- value = random.Next<uint16_t>();
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #26 from RNG (using Next())",
- uint16_t(0xC970), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #27 from RNG",
- uint16_t(0x02E5), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #28 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #29 from RNG",
- uint16_t(0x0000), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #30 from RNG",
- uint16_t(0x0101), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #31 from RNG",
- uint16_t(0x0100), value
- );
- random(value);
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected value #32 from RNG",
- uint16_t(0x0000), value
- );
-
- GaloisLFSR random1(1);
- uint16_t value1;
- for (int i = 0; i < 32; ++i) {
- random1(value1);
- }
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "RNG with seeds 0 and 1 differ",
- value, value1
- );
-
- GaloisLFSR random_bool(0);
- bool value_bool;
- for (int i = 0; i < (16 * 32); ++i) {
- random_bool(value_bool);
- }
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected result for bool",
- false, value_bool
- );
-
- GaloisLFSR random8(0);
- uint8_t value8;
- for (int i = 0; i < 31; ++i) {
- random8(value8);
- }
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected result for uint8",
- uint8_t(0x10), value8
- );
-
- GaloisLFSR random32(0);
- uint32_t value32;
- for (int i = 0; i < 16; ++i) {
- random32(value32);
- }
- CPPUNIT_ASSERT_EQUAL_MESSAGE(
- "unexpected result for uint32",
- uint32_t(0xB0000000), value32
- );
-}
-
-void StabilityTest::testSimplex() {
- SimplexNoise noise(0);
-
- Assert(noise, glm::vec3(0.0f, 0.0f, 0.0f), 0.0f);
- Assert(noise, glm::vec3(0.0f, 0.0f, 1.0f), 0.652221322059631f);
- Assert(noise, glm::vec3(0.0f, 1.0f, 0.0f), 0.867977976799011f);
- Assert(noise, glm::vec3(0.0f, 1.0f, 1.0f), -0.107878111302853f);
- Assert(noise, glm::vec3(1.0f, 0.0f, 0.0f), -0.107878260314465f);
- Assert(noise, glm::vec3(1.0f, 0.0f, 1.0f), -6.31356940061778e-08f);
- Assert(noise, glm::vec3(1.0f, 1.0f, 0.0f), -0.107878245413303f);
- Assert(noise, glm::vec3(1.0f, 1.0f, 1.0f), 0.0f);
-
- Assert(noise, glm::vec3( 0.0f, 0.0f, -1.0f), -0.107878483831882f);
- Assert(noise, glm::vec3( 0.0f, -1.0f, 0.0f), -0.760099768638611f);
- Assert(noise, glm::vec3( 0.0f, -1.0f, -1.0f), 0.0f);
- Assert(noise, glm::vec3(-1.0f, 0.0f, 0.0f), 0.760099768638611f);
- Assert(noise, glm::vec3(-1.0f, 0.0f, -1.0f), 0.0f);
- Assert(noise, glm::vec3(-1.0f, -1.0f, 0.0f), -0.107878118753433f);
- Assert(noise, glm::vec3(-1.0f, -1.0f, -1.0f), 0.0f);
-}
-
-void StabilityTest::testWorley() {
- WorleyNoise noise(0);
-
- Assert(noise, glm::vec3(0.0f, 0.0f, 0.0f), -0.117765009403229f);
- Assert(noise, glm::vec3(0.0f, 0.0f, 1.0f), -0.209876894950867f);
- Assert(noise, glm::vec3(0.0f, 1.0f, 0.0f), -0.290086328983307f);
- Assert(noise, glm::vec3(0.0f, 1.0f, 1.0f), -0.332393705844879f);
- Assert(noise, glm::vec3(1.0f, 0.0f, 0.0f), -0.621925830841064f);
- Assert(noise, glm::vec3(1.0f, 0.0f, 1.0f), -0.338455379009247f);
- Assert(noise, glm::vec3(1.0f, 1.0f, 0.0f), -0.386664032936096f);
- Assert(noise, glm::vec3(1.0f, 1.0f, 1.0f), -0.533940434455872f);
-
- Assert(noise, glm::vec3( 0.0f, 0.0f, -1.0f), -0.425480604171753f);
- Assert(noise, glm::vec3( 0.0f, -1.0f, 0.0f), -0.189745843410492f);
- Assert(noise, glm::vec3( 0.0f, -1.0f, -1.0f), -0.30408102273941f);
- Assert(noise, glm::vec3(-1.0f, 0.0f, 0.0f), -0.618566155433655f);
- Assert(noise, glm::vec3(-1.0f, 0.0f, -1.0f), -0.060045599937439f);
- Assert(noise, glm::vec3(-1.0f, -1.0f, 0.0f), -0.366827547550201f);
- Assert(noise, glm::vec3(-1.0f, -1.0f, -1.0f), -0.575981974601746f);
-}
-
-void StabilityTest::Assert(
- const SimplexNoise &noise,
- const glm::vec3 &position,
- float expected
-) {
- stringstream msg;
- msg << "unexpected simplex noise value at " << position;
- CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
- msg.str(),
- expected, noise(position), numeric_limits<float>::epsilon()
- );
-}
-
-void StabilityTest::Assert(
- const WorleyNoise &noise,
- const glm::vec3 &position,
- float expected
-) {
- stringstream msg;
- msg << "unexpected worley noise value at " << position;
- CPPUNIT_ASSERT_DOUBLES_EQUAL_MESSAGE(
- msg.str(),
- expected, noise(position), numeric_limits<float>::epsilon()
- );
-}
-
-}
-}
-}
projects / blobs.git / blobdiff