1 # -*-Perl-*- Test Harness script for Bioperl
10 test_begin(-tests => 60);
12 use_ok('Bio::TreeIO');
15 my $verbose = test_debug();
17 my $treeio = Bio::TreeIO->new(-verbose => $verbose,
19 -file => test_input_file('test.nhx'));
20 my $tree = $treeio->next_tree;
23 ok ! $tree->has_tag('test');
24 is $tree->add_tag_value('test','a'), 1;
25 ok $tree->has_tag('test');
26 is $tree->add_tag_value('test','b'), 2;
27 my @tags = $tree->get_tag_values('test');
29 is scalar $tree->get_tag_values('test'), 'a', 'retrieve the first value';
30 is $tree->remove_tag('test2'), 0;
31 is $tree->remove_tag('test'), 1;
32 ok ! $tree->has_tag('test');
33 is $tree->set_tag_value('test',('a','b','c')), 3;
34 is $tree->remove_all_tags(), undef;
35 ok ! $tree->has_tag('test');
38 my @nodes = $tree->find_node('ADH2');
39 is(@nodes, 2,'Number of nodes that have ADH2 as name');
42 $treeio = Bio::TreeIO->new(-verbose => $verbose,
45 $treeio->write_tree($tree);
46 print "nodes are: \n",
47 join(", ", map { $_->id . ":". (defined $_->branch_length ?
48 $_->branch_length : '' ) } @nodes), "\n";
51 $treeio = Bio::TreeIO->new(-format => 'newick',
52 -file => test_input_file('test.nh'));
53 $tree = $treeio->next_tree;
57 my $out = Bio::TreeIO->new(-format => 'tabtree');
59 $out->write_tree($tree);
62 my @hADH = ( $tree->find_node('hADH1'),
63 $tree->find_node('hADH2') );
64 my ($n4) = $tree->find_node('yADH4');
66 is($tree->is_monophyletic(-nodes => \@hADH,
67 -outgroup => $n4),1,'Test Monophyly');
69 my @mixgroup = ( $tree->find_node('hADH1'),
70 $tree->find_node('yADH2'),
71 $tree->find_node('yADH3'),
74 my ($iADHX) = $tree->find_node('iADHX');
77 is($iADHX->height, 0,'Height');
78 is($iADHX->depth,0.22,'Depth');
79 isnt( $tree->is_monophyletic(-nodes => \@mixgroup,
80 -outgroup=> $iADHX),1, 'non-monophyletic group');
83 is $tree->is_binary, 0, 'not a binary tree';
84 is scalar $tree->get_nodes, 12, '12 nodes';
87 is $tree->is_binary, 1, 'after force_binary() it is';
88 is scalar $tree->get_nodes, 17, 'and there are more nodes (17)';
90 my $in = Bio::TreeIO->new(-format => 'newick',
92 $tree = $in->next_tree;
93 my ($a,$b,$c,$d) = ( $tree->find_node('A'),
94 $tree->find_node('B'),
95 $tree->find_node('C'),
96 $tree->find_node('D'));
98 is($tree->is_monophyletic(-nodes => [$b,$c],
99 -outgroup => $d),1, 'B,C are Monophyletic');
101 is($tree->is_monophyletic(-nodes => [$b,$a],
102 -outgroup => $d),1,'A,B are Monophyletic');
104 $tree = $in->next_tree;
106 ($a,$b,$c,$d,$e,$f,$i) = ( $tree->find_node('A'),
107 $tree->find_node('B'),
108 $tree->find_node('C'),
109 $tree->find_node('D'),
110 $tree->find_node('E'),
111 $tree->find_node('F'),
112 $tree->find_node('I'),
114 isnt( $tree->is_monophyletic(-nodes => [$b,$f],
115 -outgroup => $d),1,'B,F are not Monophyletic' );
117 is($tree->is_monophyletic(-nodes => [$b,$a],
118 -outgroup => $f),1, 'A,B are Monophyletic');
122 isnt( $tree->is_paraphyletic(-nodes => [$a,$b,$c],
123 -outgroup => $d), 1,'A,B,C are not Monophyletic w D as outgroup');
125 is( $tree->is_paraphyletic(-nodes => [$a,$f,$e],
126 -outgroup => $i), 1, 'A,F,E are monophyletic with I as outgroup');
129 # test for rerooting the tree
130 my $out = Bio::TreeIO->new(-format => 'newick',
133 $tree = $in->next_tree;
134 $tree->verbose( -1 ) unless $verbose;
135 my $node_cnt_orig = scalar($tree->get_nodes);
136 # reroot on an internal node: should work fine
137 $a = $tree->find_node('A');
138 # removing node_count checks because re-rooting can change the
139 # number of internal nodes (if it is done correctly)
140 my $total_length_orig = $tree->total_branch_length;
141 is $tree->total_branch_length, $tree->subtree_length,
142 "subtree_length() without attributes is an alias to total_branch_lenght()";
143 cmp_ok($total_length_orig, '>',$tree->subtree_length($a->ancestor),
144 'Length of the tree is larger that lenght of a subtree');
145 $out->write_tree($tree) if $verbose;
146 is($tree->reroot($a),1, 'Can re-root with A as outgroup');
147 $out->write_tree($tree) if $verbose;
148 is($node_cnt_orig, scalar($tree->get_nodes), 'Count the number of nodes');
149 my $total_length_new = $tree->total_branch_length;
150 my $eps = 0.001 * $total_length_new; # tolerance for checking length
151 warn("orig total len ", $total_length_orig, "\n") if $verbose;
152 warn("new total len ", $tree->total_branch_length,"\n") if $verbose;
153 # according to retree in phylip these branch lengths actually get larger
155 #ok(($total_length_orig >= $tree->total_branch_length - $eps)
156 # and ($total_length_orig <= $tree->total_branch_length + $eps));
157 is($tree->get_root_node, $a->ancestor, "Root node is A's ancestor");
159 # try to reroot on an internal, will result in there being 1 less node
160 $a = $tree->find_node('C')->ancestor;
161 $out->write_tree($tree) if $verbose;
162 is($tree->reroot($a),1, "Can reroot with C's ancsestor");
163 $out->write_tree($tree) if $verbose;
164 is($node_cnt_orig, scalar($tree->get_nodes), 'Check to see that node count is correct after an internal node was removed after this re-rooting');
165 warn("orig total len ", $total_length_orig, "\n") if $verbose;
166 warn("new total len ", $tree->total_branch_length,"\n") if $verbose;
167 cmp_ok($total_length_orig, '>=', $tree->total_branch_length - $eps,
168 'Total original branch length is what it is supposed to be');
169 cmp_ok($total_length_orig, '<=',$tree->total_branch_length + $eps,
170 'Updated total branch length after the reroot');
171 is($tree->get_root_node, $a->ancestor, 'Make sure root is really what we asked for');
173 # try to reroot on existing root: should fail
174 $a = $tree->get_root_node;
175 isnt( $tree->reroot($a),1, 'Testing for failed re-rerooting');
177 # try a more realistic tree
178 $tree = $in->next_tree;
179 $a = $tree->find_node('VV');
180 $node_cnt_orig = scalar($tree->get_nodes);
181 $total_length_orig = $tree->total_branch_length;
182 $out->write_tree($tree) if $verbose;
183 is($tree->reroot($a->ancestor),1, 'Test that rooting succeeded');
184 $out->write_tree($tree) if $verbose;
185 is($node_cnt_orig+1, scalar($tree->get_nodes), 'Test that re-rooted tree has proper number of nodes after re-rooting');
186 $total_length_new = $tree->total_branch_length;
187 $eps = 0.001 * $total_length_new; # tolerance for checking length
188 cmp_ok($total_length_orig, '>=', $tree->total_branch_length - $eps, 'Branch length before rerooting');
189 cmp_ok($total_length_orig, '<=', $tree->total_branch_length + $eps,
190 'Branch length after rerooting');
191 is($tree->get_root_node, $a->ancestor->ancestor,'Root is really the ancestor we asked for');
193 # BFS and DFS search testing
194 $treeio = Bio::TreeIO->new(-verbose => $verbose,
196 -file => test_input_file('test.nh'));
197 $tree = $treeio->next_tree;
200 for $n ( $tree->get_leaf_nodes ) {
204 for $n ( grep {! $_->is_Leaf } $tree->get_nodes ) {
207 # enable for debugging
208 Bio::TreeIO->new(-format => 'newick')->write_tree($tree) if( $verbose );
210 my $BFSorder = join(",", map { $_->id } ( $tree->get_nodes(-order => 'b')));
211 is($BFSorder, '0,1,3,2,C,D,E,F,G,H,A,B', 'BFS traversal order');
212 my $DFSorder = join(",", map { $_->id } ( $tree->get_nodes(-order => 'd')));
213 is($DFSorder, '0,1,2,A,B,C,D,3,E,F,G,H', 'DFS travfersal order');
216 # test some Bio::Tree::TreeFunctionI methods
217 #find_node tested extensively already
218 $tree->remove_Node('H');
219 $DFSorder = join(",", map { $_->id } ( $tree->get_nodes(-order => 'd')));
220 is($DFSorder, '0,1,2,A,B,C,D,3,E,F,G', 'DFS traversal after removing H');
221 #get_lineage_nodes tested during get_lca
222 $tree->splice(-remove_id => 'G');
223 $DFSorder = join(",", map { $_->id } ( $tree->get_nodes(-order => 'd')));
224 is($DFSorder, '0,1,2,A,B,C,D,3,E,F', 'DFS traversal after removing G');
225 $tree->splice(-remove_id => [('E', 'F')], -keep_id => 'F');
226 $DFSorder = join(",", map { $_->id } ( $tree->get_nodes(-order => 'd')));
227 is($DFSorder, '0,1,2,A,B,C,D,F', 'DFS traversal after removing F');
228 $tree->splice(-keep_id => [qw(0 1 2 A B C D)]);
229 $DFSorder = join(",", map { $_->id } ( $tree->get_nodes(-order => 'd')));
230 is($DFSorder, '0,1,2,A,B,C,D', 'DFS after removing all but 0,1,2,A,B,C,D');
231 #get_lca, merge_lineage, contract_linear_paths tested in in Taxonomy.t
234 # try out the id to bootstrap copy method
235 $treeio = Bio::TreeIO->new(-format => 'newick',
236 -file => test_input_file('bootstrap.tre'));
237 $tree = $treeio->next_tree;
238 my ($test_node) = $tree->find_node(-id => 'A');
239 is($test_node->ancestor->id, 90,'Testing bootstrap copy');
240 is($test_node->ancestor->ancestor->id, '25','Testing bootstrap copy');
241 $tree->move_id_to_bootstrap;
242 is($test_node->ancestor->id, '','Testing bootstrap copy');
243 is($test_node->ancestor->bootstrap, '90', 'Testing bootstrap copy');
244 is($test_node->ancestor->ancestor->id, '', 'Testing bootstrap copy');
245 is($test_node->ancestor->ancestor->bootstrap, '25', 'Testing bootstrap copy');
247 # change TreeIO to parse
248 $treeio = Bio::TreeIO->new(-format => 'newick',
249 -file => test_input_file('bootstrap.tre'),
250 -internal_node_id => 'bootstrap');
251 $tree = $treeio->next_tree;
252 ($test_node) = $tree->find_node(-id => 'A');
253 is($test_node->ancestor->id, '','Testing auto-boostrap copy during parse');
254 is($test_node->ancestor->ancestor->id, '',
255 'Testing auto-boostrap copy during parse');
256 is($test_node->ancestor->bootstrap, '90',
257 'Testing auto-boostrap copy during parse');
258 is($test_node->ancestor->ancestor->bootstrap, '25',
259 'Testing auto-boostrap copy during parse');
265 (I,((D,(C,(A,B))),(E,(F,G))));
266 (((A:0.3,B:2.1):0.45,C:0.7),D:4);
267 (A:0.031162,((((((B:0.022910,C:0.002796):0.010713,(D:0.015277,E:0.020484):0.005336):0.005588,((F:0.013293,(G:0.018374,H:0.003108):0.005318):0.006047,I:0.014607):0.001677):0.004196,(((((J:0.003307,K:0.001523):0.011884,L:0.006960):0.006514,((M:0.001683,N:0.000100):0.002226,O:0.007085):0.014649):0.008004,P:0.037422):0.005201,(Q:0.000805,R:0.000100):0.015280):0.005736):0.004612,S:0.042283):0.017979,(T:0.006883,U:0.016655):0.040226):0.014239,((((((V:0.000726,W:0.000100):0.028490,((((X:0.011182,Y:0.001407):0.005293,Z:0.011175):0.004701,AA:0.007825):0.016256,BB:0.029618):0.008146):0.004279,CC:0.035012):0.060215,((((((DD:0.014933,(EE:0.008148,FF:0.000100):0.015458):0.003891,GG:0.010996):0.001489,(HH:0.000100,II:0.000100):0.054265):0.003253,JJ:0.019722):0.013796,((KK:0.001960,LL:0.004924):0.013034,MM:0.010071):0.043273):0.011912,(NN:0.031543,OO:0.018307):0.059182):0.026517):0.011087,((PP:0.000100,QQ:0.002916):0.067214,(RR:0.064486,SS:0.013444):0.011613):0.050846):0.015644,((TT:0.000100,UU:0.009287):0.072710,(VV:0.009242,WW:0.009690):0.035346):0.042993):0.060365);