@Test
void test_phyper_underrepresentation() {

  int N = 60; // # total number of genes
  int n = 13; // # study set
  int n_t = 2; // # number genes in study set annotated to t
  int m_t = 5; // # number of genes in population annotated to t
  double result = hypergeometric.phyper(n_t, N, m_t, n, true);
  assertEquals(0.9370032, result, EPSILON);
}