tests/tridiagonal_tests.m

   1 A = tridiagonal(0, -1, 2, -1);
   2 expected = [];
   3 unit_test_equals("poisson tridiagonal of size zero is correct", ...
   4                  expected, ...
   5                  A);
   6
   7 A = tridiagonal(1, -1, 2, -1);
   8 expected = [2];
   9 unit_test_equals("poisson tridiagonal of size one is correct", ...
  10                  expected, ...
  11                  A);
  12
  13 A = tridiagonal(2, -1, 2, -1);
  14 expected = [2, -1; ...
  15             -1, 2];
  16 unit_test_equals("poisson tridiagonal of size two is correct", ...
  17                  expected, ...
  18                  A);
  19
  20 A = tridiagonal(3, -1, 2, -1);
  21 expected = [2, -1, 0; ...
  22             -1, 2, -1;
  23             0, -1, 2];
  24 unit_test_equals("poisson tridiagonal of size three is correct", ...
  25                  expected, ...
  26                  A);