Line data    Source code

       1             : /**
       2             :  * Unit tests for the Number Theory modules PRNGs
       3             :  */
       4             : #include <gtest/gtest.h>
       5             : #include <iostream>
       6             : #include <openGPMP/nt/random.hpp>
       7             : 
       8           4 : TEST(LCGTest, DefaultConstructor) {
       9           1 :     gpmp::core::rndm::LCG generator;
      10             : 
      11             :     // Generate a few random numbers and ensure they are within bounds
      12          11 :     for (int i = 0; i < 10; ++i) {
      13          10 :         uint64_t result = generator();
      14          10 :         EXPECT_GE(result, 0);
      15          10 :         EXPECT_LE(result, std::numeric_limits<uint64_t>::max());
      16             :     }
      17           1 : }
      18             : 
      19           4 : TEST(LCGTest, CustomConstructor) {
      20           1 :     uint64_t seed = 123;
      21           1 :     uint64_t a = 6364136223846793005ULL;
      22           1 :     uint64_t c = 1442695040888963407ULL;
      23             : 
      24           1 :     gpmp::core::rndm::LCG generator(seed, a, c);
      25             : 
      26             :     // Generate a few random numbers and ensure they are within bounds
      27          11 :     for (int i = 0; i < 10; ++i) {
      28          10 :         uint64_t result = generator();
      29          10 :         EXPECT_GE(result, 0);
      30          10 :         EXPECT_LE(result, std::numeric_limits<uint64_t>::max());
      31             :     }
      32           1 : }