1 package Math::GSL::Vector::Test;
2 use Math::GSL::Test qw/:all/;
3 use base q{Test::Class};
5 use Math::GSL::Vector qw/:all/;
6 use Math::GSL::Complex qw/:all/;
7 use Math::GSL qw/:all/;
9 use Math::GSL::Errno qw/:all/;
13 # This allows us to eval code
14 BEGIN{ gsl_set_error_handler_off(); }
16 sub make_fixture : Test(setup) {
18 $self->{vector} = gsl_vector_alloc(5);
19 $self->{object} = Math::GSL::Vector->new(5);
22 sub teardown : Test(teardown) {
23 unlink 'vector' if -f 'vector';
26 sub GSL_VECTOR_ALLOC : Tests {
27 my $vector = gsl_vector_alloc(5);
28 isa_ok($vector, 'Math::GSL::Vector');
30 sub GSL_VECTOR_LENGTH: Tests {
32 my $vector = $self->{object};
33 ok( $vector->length == 5, '$vector->length' );
35 sub GSL_VECTOR_SET_GET: Tests {
37 gsl_vector_set($self->{vector}, 0, 42 );
38 my $elem = gsl_vector_get($self->{vector}, 0);
39 ok( $elem == 42, 'gsl_vector_set/gsl_vector_get' );
42 sub GSL_VECTOR_ISNONNEG: Tests {
44 map { gsl_vector_set($self->{vector}, $_, -1 ) } (0..4);
45 ok( !gsl_vector_isnonneg($self->{vector}),'gsl_vector_isnonneg' );
46 map { gsl_vector_set($self->{vector}, $_, 1 ) } (0..4);
47 ok( gsl_vector_isnonneg($self->{vector}),'gsl_vector_isnonneg' );
50 sub GSL_VECTOR_ISNULL: Tests {
52 ok( !gsl_vector_isnull($self->{vector}), 'non-null vector returns false' );
53 map { gsl_vector_set($self->{vector}, $_, 0 ) } (0..4);
54 ok( gsl_vector_isnull($self->{vector}),'null vector returns true' );
55 gsl_vector_set($self->{vector}, 0, 5 );
56 ok( !gsl_vector_isnull($self->{vector}), 'changed non-null vector returns false' );
59 sub GSL_VECTOR_ISPOS: Tests {
61 map { gsl_vector_set($self->{vector}, $_, -1 ) } (0..4);
62 ok( !gsl_vector_ispos($self->{vector}),'gsl_vector_pos' );
63 map { gsl_vector_set($self->{vector}, $_, 1 ) } (0..4);
64 ok( gsl_vector_ispos($self->{vector}),'gsl_vector_pos' );
67 sub GSL_VECTOR_ISNEG: Tests {
70 map { gsl_vector_set($self->{vector}, $_, -$_ ) } (0..4);
71 ok( !gsl_vector_isneg($self->{vector}),'gsl_vector_neg' );
73 gsl_vector_set($self->{vector}, 0, -1 );
75 ok( gsl_vector_isneg($self->{vector}),'gsl_vector_neg' );
78 sub GSL_VECTOR_NEW: Tests {
79 my $vec = Math::GSL::Vector->new( [ map { $_ ** 2 } (1..10) ] );
80 isa_ok( $vec, 'Math::GSL::Vector', 'Math::GSL::Vector->new($values)' );
82 dies_ok( sub { Math::GSL::Vector->new(-1) }, 'new takes only positive indices');
84 dies_ok( sub { Math::GSL::Vector->new(3.14) }, 'new takes only integer indices');
86 dies_ok( sub { Math::GSL::Vector->new([]) },'new takes only nonempty array refs');
88 $vec = Math::GSL::Vector->new(42);
89 ok( $vec->length == 42 , 'new creates empty vectors of a given length');
91 sub GSL_VECTOR_AS_LIST: Tests {
92 my $vec = Math::GSL::Vector->new( [ map { $_ ** 2 } (reverse 1..10) ] );
93 my @x = $vec->as_list;
94 is_deeply( \@x, [map { $_ ** 2 } (reverse 1..10)] );
97 sub GSL_VECTOR_SET: Tests {
98 my $vec = Math::GSL::Vector->new( [ map { $_ ** 2 } (1..10) ] );
99 $vec->set( [ 0..4] , [ reverse 1..5 ] );
100 my ($x) = $vec->get([0]);
101 ok( $x == 5, "gsl_vector_set: $x ?= 5" );
103 sub GSL_VECTOR_MIN: Tests {
104 my $vec = Math::GSL::Vector->new( [ map { $_ ** 2 } (0..4) ] );
105 ok_similar( $vec->min ,0, '$vec->min' );
106 ok_similar( gsl_vector_min($vec->raw) ,0, 'gsl_vector_min' );
109 sub GSL_VECTOR_MAX: Tests {
110 my $vec = Math::GSL::Vector->new( [ 3, 567, 4200 ]);
111 ok_similar( $vec->max ,4200, '$vec->min' );
112 ok_similar( gsl_vector_max($vec->raw) ,4200, 'gsl_vector_max' );
114 sub GSL_VECTOR_FREAD_FWRITE: Tests {
116 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
118 my $fh = gsl_fopen("vector", 'w');
119 my $status = gsl_vector_fwrite($fh, $self->{vector} );
120 ok( ! $status, 'gsl_vector_fwrite' );
121 ok( -f "vector", 'gsl_vector_fwrite' );
122 ok_status(fclose($fh));
124 map { gsl_vector_set($self->{vector}, $_, $_ ** 3 ) } (0..4);
126 $fh = gsl_fopen("vector", 'r');
128 ok_status(gsl_vector_fread($fh, $self->{vector} ));
129 is_deeply( [ map { gsl_vector_get($self->{vector}, $_) } (0..4) ],
130 [ map { $_ ** 2 } (0..4) ],
132 ok_status(gsl_fclose($fh));
135 sub GSL_VECTOR_SUBVECTOR : Tests {
137 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
138 my $vec_sub = gsl_vector_subvector($self->{vector}, 2, 3);
140 ok_similar( [ map { gsl_vector_get($vec_sub->{vector}, $_) } (0..2) ],
145 sub GSL_VECTOR_CALLOC : Tests {
146 my $vector = gsl_vector_calloc(5);
147 isa_ok($vector, 'Math::GSL::Vector');
150 sub GSL_VECTOR_SET_ALL : Tests {
151 my $vec = Math::GSL::Vector->new(5);
152 gsl_vector_set_all($vec->raw, 4);
153 ok_similar( [ $vec->as_list ], [ (4) x 5 ] );
156 sub GSL_VECTOR_SET_ZERO : Tests {
158 gsl_vector_set_zero($self->{vector});
159 map { is(gsl_vector_get($self->{vector} , $_ ), 0) } (0..4);
162 sub GSL_VECTOR_SET_BASIS : Tests {
164 ok_status(gsl_vector_set_basis($self->{vector}, 0));
165 is (gsl_vector_get($self->{vector} , 0 ), 1);
166 map { is(gsl_vector_get($self->{vector} , $_ ), 0) } (1..4);
169 sub GSL_VECTOR_SUBVECTOR_WITH_STRIDE : Tests {
171 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
172 my $sub_stride = gsl_vector_subvector_with_stride($self->{vector}, 0, 2, 3);
173 is(gsl_vector_get($sub_stride->{vector} , 0 ), 0, "first element");
174 is(gsl_vector_get($sub_stride->{vector} , 1 ), 4, "second element");
175 is(gsl_vector_get($sub_stride->{vector} , 2 ), 16, "third element");
178 sub GSL_VECTOR_MAX_INDEX : Tests {
180 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
181 my $index = gsl_vector_max_index($self->{vector});
182 is($index, 4, "Position of the maximum");
185 sub GSL_VECTOR_MIN_INDEX : Tests {
187 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
188 my $index = gsl_vector_min_index($self->{vector});
189 is($index, 0, "Position of the minimum");
192 sub GSL_VECTOR_MINMAX_INDEX : Tests {
195 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4);
196 ($min, $max) = gsl_vector_minmax_index($self->{vector});
197 ok_similar( [ 0, 4 ], [ $min, $max], 'gsl_vector_minmax_index' );
200 sub GSL_VECTOR_MINMAX : Tests {
202 my $vector = gsl_vector_alloc(5);
203 map { gsl_vector_set($vector, $_, $_ ** 2 ) } (0..4);
205 ($min, $max) = gsl_vector_minmax($vector);
207 ok_similar( [ 0, 16 ], [ $min, $max], 'gsl_vector_minmax' );
210 sub GSL_VECTOR_MEMCPY : Tests {
212 my $copy = gsl_vector_alloc(5);
213 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
214 is( gsl_vector_memcpy($copy, $self->{vector}), 0);
215 map { is(gsl_vector_get($copy, $_), $_ ** 2 ) } (0..4); ;
218 sub GSL_VECTOR_VIEW_ARRAY : Tests {
219 my @array = [1,2,3,4,5,6];
220 my $vec_view = gsl_vector_view_array(@array, 2);
221 map { is(gsl_vector_get($vec_view->{vector}, $_), $_+1 ) } (0..1); ;
224 sub GSL_VECTOR_REVERSE : Tests {
226 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
227 ok_status( gsl_vector_reverse($self->{vector}));
228 ok_similar( [ 16, 9, 4, 1, 0], [ map { gsl_vector_get($self->{vector}, $_) } 0..4 ] );
231 sub GSL_VECTOR_SWAP_ELEMENTS : Tests {
233 map { gsl_vector_set($self->{vector}, $_, $_ ** 2 ) } (0..4); ;
234 ok_status( gsl_vector_swap_elements($self->{vector}, 0, 4));
235 is(gsl_vector_get($self->{vector}, 0), 16);
236 is(gsl_vector_get($self->{vector}, 4), 0);
237 map { is(gsl_vector_get($self->{vector}, $_), $_ ** 2 ) } (1..3); ;
240 sub GSL_VECTOR_ADD : Tests {
242 my $second_vec = gsl_vector_alloc(5);
243 map { gsl_vector_set($self->{vector}, $_, $_ ) } (0..4); ;
244 map { gsl_vector_set($second_vec, $_, $_ ) } (0..4); ;
245 ok_status(gsl_vector_reverse($second_vec));
246 is( gsl_vector_add($self->{vector}, $second_vec), 0);
247 map { is(gsl_vector_get($self->{vector}, $_), 4 ) } (0..4); ;
250 sub GSL_VECTOR_SUB : Tests {
252 my $second_vec = gsl_vector_alloc(5);
253 map { gsl_vector_set($self->{vector}, $_, $_ ) } (0..4); ;
254 map { gsl_vector_set($second_vec, $_, 1) } (0..4); ;
255 ok_status( gsl_vector_sub($self->{vector}, $second_vec));
256 map { is(gsl_vector_get($self->{vector}, $_), $_ - 1 ) } (0..4); ;
259 sub GSL_VECTOR_MUL : Tests {
261 my $second_vec = gsl_vector_alloc(5);
262 map { gsl_vector_set($self->{vector}, $_, $_ ) } (0..4); ;
263 map { gsl_vector_set($second_vec, $_, 2) } (0..4); ;
264 ok_status( gsl_vector_mul($self->{vector}, $second_vec));
265 map { is(gsl_vector_get($self->{vector}, $_), $_ * 2 ) } (0..4); ;
268 sub GSL_VECTOR_DIV : Tests {
270 my $second_vec = gsl_vector_alloc(5);
271 map { gsl_vector_set($self->{vector}, $_, $_*2 ) } (0..4); ;
272 map { gsl_vector_set($second_vec, $_, 2) } (0..4); ;
273 ok_status( gsl_vector_div($self->{vector}, $second_vec));
274 map { is(gsl_vector_get($self->{vector}, $_), $_ ) } (0..4); ;
277 sub GSL_VECTOR_SCALE : Tests {
278 my $v = Math::GSL::Vector->new([0..4]);
279 ok_status(gsl_vector_scale($v->raw, 2));
280 ok_similar( [ $v->as_list ], [ 0,2,4,6,8 ] );
283 sub GSL_VECTOR_SCALE_OVERLOAD : Tests {
284 my $v = Math::GSL::Vector->new([0..4]);
285 my $expected = [ map { $_*5} (0..4) ];
287 ok_similar( [ $v->as_list ], $expected );
289 my $w = Math::GSL::Vector->new([0..4]);
291 ok_similar( [ $w->as_list ], $expected );
294 sub GSL_VECTOR_DOT_PRODUCT : Tests {
295 my $v = Math::GSL::Vector->new([0..4]);
296 my $w = Math::GSL::Vector->new([0..4]);
298 ok_similar( $v * $w , 4*4 + 3*3 + 2*2 + 1*1 );
300 my $z = Math::GSL::Vector->new([0..10]);
301 dies_ok( sub { $z * $v; }, 'dot_product checks vector length' );
303 my $q = Math::GSL::Vector->new(5);
304 ok_similar ( $q * $q, 0, 'newly created vectors are zero-filled');
308 sub GSL_VECTOR_SWAP : Tests {
310 my @idx = (0..(5+int rand(5)));
311 my $vec1 = gsl_vector_alloc($#idx+1);
312 my $vec2 = gsl_vector_alloc($#idx+1);
314 map { gsl_vector_set($vec1, $_, $_**2 ) } @idx;
315 map { gsl_vector_set($vec2, $_, $_) } @idx;
317 ok_status( gsl_vector_swap($vec1, $vec2));
319 ok_similar( [ map { gsl_vector_get($vec1, $_) } @idx ],
322 ok_similar( [ map { gsl_vector_get($vec2, $_) } @idx ],
323 [ map { $_**2 } @idx ],
327 sub GSL_VECTOR_FPRINTF_FSCANF : Tests {
328 my $vec1 = Math::GSL::Vector->new([ map { $_ ** 2 } (0..4) ]);
330 my $fh = gsl_fopen("vector", 'w');
331 ok( defined $fh, 'fopen - write');
332 ok_status(gsl_vector_fprintf($fh, $vec1->raw, "%f"));
333 ok_status(gsl_fclose($fh));
335 my $vec2 = Math::GSL::Vector->new([ map { $_ ** 3 } (0..4) ]);
337 $fh = gsl_fopen("vector", 'r');
338 ok( defined $fh, 'fopen - readonly');
340 ok_status(gsl_vector_fscanf($fh, $vec2->raw));
342 ok_similar( [ $vec2->as_list ], [ map { $_ ** 2 } (0..4) ]);
343 ok_status(gsl_fclose($fh) );
346 sub GSL_VECTOR_COMPLEX_ALLOC : Tests {
347 my $vec = gsl_vector_complex_alloc(5);
348 isa_ok($vec, 'Math::GSL::Vector');
351 sub GSL_VECTOR_COMPLEX_CALLOC : Tests {
352 my $vec = gsl_vector_complex_calloc(5);
353 isa_ok($vec, 'Math::GSL::Vector');
356 sub GSL_VECTOR_RAW : Tests {
357 my $vec = Math::GSL::Vector->new(10);
358 isa_ok($vec->raw, 'Math::GSL::Vector::gsl_vector');
361 sub GSL_VECTOR_COMPLEX_SET_GET : Tests {
362 my $vec = gsl_vector_complex_calloc(5);
363 my $complex = gsl_complex_rect(2,1);
364 gsl_vector_complex_set($vec, 0, $complex);
365 my $result = gsl_complex_rect(5,5);
366 $result = gsl_vector_complex_get($vec, 0);
367 isa_ok($result, 'Math::GSL::Complex');
368 print Dumper [ $result ];
369 local $TODO = "don't know why the complex returned gsl_vector_complex_get is not usable";
372 sub GSL_ADDITION : Tests {
373 my $vec1 = Math::GSL::Vector->new([1,2,3]);
374 my $vec2 = Math::GSL::Vector->new([2,3,4]);
375 my $vec3 = $vec1 + $vec2;
376 ok_similar([$vec3->as_list], [3,5,7]);
379 my $vec4 = $vec2 + 5;
380 ok_similar([$vec4->as_list], [7,8,9]);
382 my $vec5 = 5 + $vec2;
383 ok_similar([$vec5->as_list], [7,8,9]);
385 my $z = Math::GSL::Vector->new([0..10]);
386 dies_ok( sub { $z + $vec1; }, 'addition checks vector length' );
387 ok_similar([$vec1->as_list], [1,2,3]);
391 my $v1 = Math::GSL::Vector->new( [ 55 .. 65 ] );
392 isa_ok( $v1->copy, 'Math::GSL::Vector' );
393 ok_similar( [ $v1->copy->as_list ], [ $v1->as_list ] );
396 sub GSL_SUBTRACTION : Tests {
397 my $v1 = Math::GSL::Vector->new( [ 1 .. 5 ]);
398 my $v2 = Math::GSL::Vector->new( [ 5 .. 9 ]);
400 ok_similar( [($v2-$v1)->as_list], [ (4) x 5 ] );
403 ok_similar( [ $v3->as_list ], [ 2 .. 6 ] );
406 ok_similar( [ $v4->as_list ], [ 2, 1, 0, -1, -2 ] );
409 sub GSL_MULTIPLICATION : Tests {
410 my $v = Math::GSL::Vector->new([1,2,3]);
413 # check that original is not modified each time
414 ok_similar ( [$v2->as_list], [5,10,15]);
415 ok_similar ( [$v->as_list], [1,2,3]);
418 ok_similar ( [$v3->as_list], [5,10,15]);
419 ok_similar ( [$v->as_list], [1,2,3]);
422 ok_similar( [ $w->as_list ], [0,0,0], 'right overloaded zero-ify' );
425 ok_similar( [ $w->as_list ], [0,0,0], 'left overloaded zero-ify' );
428 Test::Class->runtests;