1 package Math::GSL::VectorComplex::Test;
2 use base q{Test::Class};
3 use Test::More tests => 26;
4 use Math::GSL::Test qw/:all/;
5 use Math::GSL qw/:all/;
6 use Math::GSL::VectorComplex qw/:all/;
7 use Math::GSL::Complex qw/:all/;
8 use Math::GSL::Errno qw/:all/;
9 use Math::GSL::Const qw/:all/;
15 BEGIN{ gsl_set_error_handler_off(); }
17 sub make_fixture : Test(setup) {
19 my $z = Math::Complex->make(0,3);
20 $self->{vector} = Math::GSL::VectorComplex->new([ $z, $z ** 2, 3 ] );
23 sub teardown : Test(teardown) {
24 unlink 'vector' if -f 'vectorcomplex';
27 sub GSL_VECTOR_COMPLEX_ALLOC : Tests(1) {
28 my $vec = gsl_vector_complex_alloc(5);
29 isa_ok($vec, 'Math::GSL::VectorComplex');
32 sub GSL_VECTOR_COMPLEX_CALLOC : Tests(1) {
33 my $vec = gsl_vector_complex_calloc(5);
34 isa_ok($vec, 'Math::GSL::VectorComplex');
37 sub GSL_VECTOR_COMPLEX_NEW : Tests(12) {
38 my $u = Math::GSL::VectorComplex->new(10);
39 isa_ok($u, 'Math::GSL::VectorComplex');
40 ok( $u->length == 10, 'length');
41 isa_ok($u->raw, 'Math::GSL::VectorComplex::gsl_vector_complex');
43 my $z = Math::Complex->make(0,2);
44 my $v = Math::GSL::VectorComplex->new([ $z, $z ** 2 ] );
45 isa_ok($v, 'Math::GSL::VectorComplex');
47 my @elements = $v->as_list;
48 map { isa_ok( $_, 'Math::Complex') } @elements;
49 ok_similar( [ map { Re($_) } @elements ], [ 0, -4 ] );
50 ok_similar( [ map { Im($_) } @elements ], [ 2, 0 ] );
52 my $e0 = gsl_vector_complex_get($v->raw,0);
53 ok_similar( gsl_complex_abs($e0), 2, 'first element: new gets abs correct');
54 ok_similar( gsl_complex_arg($e0), $M_PI/2, 'first element: new gets arg correct');
56 my $e1 = gsl_vector_complex_get($v->raw,1);
57 ok_similar( gsl_complex_abs($e1), 4, '2nd element: new get abs correct');
58 ok_similar( gsl_complex_arg($e1), $M_PI, '2nd element: new get arg correct');
61 sub GSL_VECTOR_COMPLEX_REVERSE : Tests(5) {
63 my $vector = $self->{vector};
64 ok_status( gsl_vector_complex_reverse($vector->raw), $GSL_SUCCESS, 'vector_complex_reverse' );
65 my @elements = $vector->as_list;
66 ok_similar( [ map { Re($_) } @elements ], [ 3, -9, 0 ], 'real parts of vector get reversed');
67 ok_similar( [ map { Im($_) } @elements ], [ 0, 0, 3 ], 'imag parts of vector get reversed');
69 my @reversed = $vector->reverse->as_list;
71 ok_similar( [ map { Re($_) } @reversed ], [ 0, -9, 3 ], 'real parts of vector get reversed');
72 ok_similar( [ map { Im($_) } @reversed ], [ 3, 0, 0 ], 'imag parts of vector get reversed');
76 sub GSL_VECTOR_COMPLEX_SWAP : Tests(6) {
78 my $y = Math::Complex->make(1,1);
79 my $z = Math::Complex->make(0,3);
80 my $v = $self->{vector};
81 my $w = Math::GSL::VectorComplex->new([ $y , 1 , 3 ]);
83 ok_status( gsl_vector_complex_swap( $v->raw, $w->raw ) );
84 ok_similar ( [ map { Re $_ } $v->as_list ],
85 [ map { Re $_ } $y , 1 , 3 ] );
86 ok_similar ( [ map { Im $_ } $w->as_list ],
87 [ map { Im $_ } $z , $z ** 2, 3 ] );
89 isa_ok( $v->swap( $w ), 'Math::GSL::VectorComplex' );
91 ok_similar ( [ map { Re $_ } $w->as_list ],
92 [ map { Re $_ } $y , 1 , 3 ] );
93 ok_similar ( [ map { Im $_ } $v->as_list ],
94 [ map { Im $_ } $z , $z ** 2, 3 ] );
98 sub GSL_VECTOR_COMPLEX_SET_GET : Tests {
99 my $vec = gsl_vector_complex_calloc(5);
100 my $complex = gsl_complex_rect(2,1);
101 gsl_vector_complex_set($vec, 0, $complex);
102 my $result = gsl_complex_rect(5,5);
103 $result = gsl_vector_complex_get($vec, 0);
104 isa_ok($result, 'Math::GSL::VectorComplex::gsl_complex');
105 local $TODO = "don't know why the complex returned gsl_vector_complex_get is not usable";
108 Test::Class->runtests;