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Support for raw chinese_whispers

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This commit introduces chinese_whispers method without any "helpers" on
PHP side. Users needs to take care of everything (building edges from
128D face chip vector, for example), but this is exposed for people
that need low-level call and want to calculate distances and build edges
in PHP directly.
This commit is contained in:
Branko Kokanovic
2018-07-19 19:12:18 +02:00
parent b17cd7c945
commit 3f60326661
11 changed files with 254 additions and 0 deletions
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27
tests/chinese_whispers_basic.phpt Normal file
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--TEST--
Basic tests for chinese_whispers
--SKIPIF--
<?php if (!extension_loaded("pdlib")) print "skip"; ?>
--FILE--
<?php
var_dump(dlib_chinese_whispers([[0,0]])); // Case with only one node
var_dump(dlib_chinese_whispers([[0,0], [1,1]])); // Case with two separate nodes
var_dump(dlib_chinese_whispers([[0,0], [0,1], [1,0], [1,1]])); // Case with two connected nodes
?>
--EXPECT--
array(1) {
[0]=>
int(0)
}
array(2) {
[0]=>
int(0)
[1]=>
int(1)
}
array(2) {
[0]=>
int(0)
[1]=>
int(0)
}

13
tests/chinese_whispers_edge_associative_array_error.phpt Normal file
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--TEST--
Edge given in edges array for chinese_whispers functions is associative array
--SKIPIF--
<?php if (!extension_loaded("pdlib")) print "skip"; ?>
--FILE--
<?php
try {
dlib_chinese_whispers([[0,0], ["foo"=>0, "bar"=>1]]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
--EXPECT--
string(46) "Edge should be numeric array with integer keys"

19
tests/chinese_whispers_edge_elements_not_long.phpt Normal file
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--TEST--
Edge elements given in edges array for chinese_whispers functions are not of long type
--SKIPIF--
<?php if (!extension_loaded("pdlib")) print "skip"; ?>
--FILE--
<?php
try {
dlib_chinese_whispers([[0,0], [1, "foo"]]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
try {
dlib_chinese_whispers([[0,0], [1, 1.1]]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
--EXPECT--
string(47) "Both elements in each edge must be of long type"
string(47) "Both elements in each edge must be of long type"

20
tests/chinese_whispers_edge_not_2_element_error.phpt Normal file
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--TEST--
Edge given in edges array for chinese_whispers functions is not having all values to be arrays with 2 elements
--SKIPIF--
<?php if (!extension_loaded("pdlib")) print "skip"; ?>
--FILE--
<?php
try {
dlib_chinese_whispers([[0,0], [1]]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
try {
dlib_chinese_whispers([[0,0], [1,1,1]]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
?>
--EXPECT--
string(42) "Edges need to contain exactly two elements"
string(42) "Edges need to contain exactly two elements"

21
tests/chinese_whispers_edge_not_array_error.phpt Normal file
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--TEST--
Edge given in edges array is not array for chinese_whispers functions
--SKIPIF--
<?php if (!extension_loaded("pdlib")) print "skip"; ?>
--FILE--
<?php
try {
dlib_chinese_whispers([[0,0], "foo"]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
try {
dlib_chinese_whispers([[0,0], 1]);
} catch (Exception $e) {
var_dump($e->getMessage());
}
?>
--EXPECT--
string(67) "Each edge provided in array needs to be numeric array of 2 elements"
string(67) "Each edge provided in array needs to be numeric array of 2 elements"

15
tests/chinese_whispers_wrong_arg_type_error.phpt Normal file
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--TEST--
Args given to chinese_whispers functions is not correct
--SKIPIF--
<?php if (!extension_loaded("pdlib")) print "skip"; ?>
--FILE--
<?php
try {
dlib_chinese_whispers("foo");
} catch (Exception $e) {
var_dump($e->getMessage());
}
?>
--EXPECT--
Warning: dlib_chinese_whispers() expects parameter 1 to be array, string given in /home/branko/pdlib/tests/chinese_whispers_wrong_arg_type_error.php on line 3
string(46) "Unable to parse edges in dlib_chinese_whispers"