/iaLib/ia_examples/ia/Math/Combination_example.php

<?php

    $ia_example = [
        'title' => 'ia\Math\Combination', // fully qualified className
        'summary' => '', // class summary
        'full_example' => '', // full usage example, relative path from ia_examples, blank '' not shown.
        'example_file' => 'code/ia/Math/Combination_example_code.php', // method by method example, blank '' not shown.
    ];
     include( __DIR__ . '/../../template/ia_example_class.php');

/iaLib/ia_examples/code/ia/Math/Combination_example_code.php

use ia\Math\Combination;
use ia\DocumentIt\DocumentIt;

echo '<h3>Disclaimer: Auto generated file.
                Please help us setting parameters to useful values and extending the examples.
        </h3>';

try {


echo '<ul class="usage">';



///////// Combination::combinationsAll(['a' => '1', 'b' => '2', 'c' => 3]); //////////////////////////////////////////////////
echo <<< FUNCTIONDEF
<li id='u_combinationsAll'><b>Combination::combinationsAll(<span class="type">array</span> \$set) <span>: \Generator</span></b>
FUNCTIONDEF;

echo "<pre class='docBlock'>".DocumentIt::methodDocBlockProtected("ia\Math\Combination", "combinationsAll")."</pre>";

echo "<ol class='usage'>";



    /// display ///
    echo <<< DOCUMENT_EXAMPLE
        <li>echo "&lt;ul&gt;";
            foreach(Combination::combinationsAll(['a' => '1', 'b' => '2', 'c' => 3]); as \$k => \$v)
                echo "&lt;li&gt;\$k := ". print_r(\$v, true)."&lt;/li&gt;";
            echo "/&lt;ul&gt;";
DOCUMENT_EXAMPLE;
    /// run ///
    echo "<ul>"; foreach(Combination::combinationsAll(['a' => '1', 'b' => '2', 'c' => 3]) as $k => $v) echo "<li>$k :=  ". print_r($v, true)."</li>"; echo "</ul>";


	echo '</ol>';


///////// Combination::combinations(); //////////////////////////////////////////////////
echo <<< FUNCTIONDEF
<li id='u_combinations'><b>Combination::combinations(<span class="type">array</span> \$set <span class="default">= []</span>, <span class="type">int</span> \$size <span class="default">= 0</span>) <span>: \Generator</span></b>
FUNCTIONDEF;

echo "<pre class='docBlock'>".DocumentIt::methodDocBlockProtected("ia\Math\Combination", "combinations")."</pre>";

echo "<ol class='usage'>";



    /// display ///
    echo <<< DOCUMENT_EXAMPLE
        <li>echo "&lt;ul&gt;";
            foreach(Combination::combinations(); as \$k => \$v)
                echo "&lt;li&gt;\$k := ". print_r(\$v, true)."&lt;/li&gt;";
            echo "/&lt;ul&gt;";
DOCUMENT_EXAMPLE;
    /// run ///
    echo "<ul>"; foreach(Combination::combinations() as $k => $v) echo "<li>$k :=  ". print_r($v, true)."</li>"; echo "</ul>";


	echo '</ol>';


///////// Combination::combinationsAllCount(3); //////////////////////////////////////////////////
echo <<< FUNCTIONDEF
<li id='u_combinationsAllCount'><b>Combination::combinationsAllCount(<span class="type">int</span> \$setLength) <span>: int</span></b>
FUNCTIONDEF;

echo "<pre class='docBlock'>".DocumentIt::methodDocBlockProtected("ia\Math\Combination", "combinationsAllCount")."</pre>";

echo "<ol class='usage'>";


    /// display ///
    echo <<< DOCUMENT_EXAMPLE
        <li>Combination::combinationsAllCount(3); -&gt;&nbsp;
DOCUMENT_EXAMPLE;
    /// run ///
         echo Combination::combinationsAllCount(3);

	echo '</ol>';


///////// Combination::combinationsCount(3, 3); //////////////////////////////////////////////////
echo <<< FUNCTIONDEF
<li id='u_combinationsCount'><b>Combination::combinationsCount(<span class="type">int</span> \$setLength, <span class="type">int</span> \$itemsNumber) <span>: int</span></b>
FUNCTIONDEF;

echo "<pre class='docBlock'>".DocumentIt::methodDocBlockProtected("ia\Math\Combination", "combinationsCount")."</pre>";

echo "<ol class='usage'>";


    /// display ///
    echo <<< DOCUMENT_EXAMPLE
        <li>Combination::combinationsCount(3, 3); -&gt;&nbsp;
DOCUMENT_EXAMPLE;
    /// run ///
         echo Combination::combinationsCount(3, 3);

	echo '</ol>';


/* PerfilExample adds new methods here */

echo '</ul>';

} catch(Exception $exception) { echo "<pre class='errorBlock'>$exception</pre>"; }

phpunit test file template

<?php

use ia\Math\Combination;
use PHPUnit\Framework\TestCase;

class CombinationTest extends TestCase {



    /**
     * @dataProvider combinationsAll_Provider
     *
     */
    public function test_combinationsAll($set , $expected) {
        
        $this->assertEquals($expected, Combination::combinationsAll($set) );
    }

        function combinationsAll_Provider() {
            return [
                'test 1' => [ '', '' ],
            ];
        }



    /**
     * @dataProvider combinations_Provider
     *
     */
    public function test_combinations($set, $size , $expected) {
        
        $this->assertEquals($expected, Combination::combinations($set, $size) );
    }

        function combinations_Provider() {
            return [
                'test 1' => [ '', '', '' ],
            ];
        }



    /**
     * @dataProvider combinationsAllCount_Provider
     *
     */
    public function test_combinationsAllCount($setLength , $expected) {
        
        $this->assertEquals($expected, Combination::combinationsAllCount($setLength) );
    }

        function combinationsAllCount_Provider() {
            return [
                'test 1' => [ '', '' ],
            ];
        }



    /**
     * @dataProvider combinationsCount_Provider
     *
     */
    public function test_combinationsCount($setLength, $itemsNumber , $expected) {
        
        $this->assertEquals($expected, Combination::combinationsCount($setLength, $itemsNumber) );
    }

        function combinationsCount_Provider() {
            return [
                'test 1' => [ '', '', '' ],
            ];
        }


}

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