object.php

<?php

    /**
    /* Testing
    /*
    /* Testing operators: <, >, ==, ===
    /* Testing type: object
    /*
    /* Expected behaviour:
    /*   Based on [1] quote "Built-in classes can define its own comparison, different classes are uncomparable, same class - compare properties the same way as arrays (PHP 4), PHP 5 has its own explanation", the expected behaviour for < and > would be the same as for arrays pretty much.
    /*   The expected behaviour for == and === are explained here [2], quote == -> "Two object instances are equal if they have the same attributes and values, and are instances of the same class." and === -> "object variables are identical if and only if they refer to the same instance of the same class.".
    /*
    /* Actual behaviour:
    /*  The actual behaviour is as descired in the manual.
    /*
    /*
    /* Links:
    /*   [1]: http://php.net/manual/en/language.operators.comparison.php
    /*   [2]: http://php.net/manual/en/language.oop5.object-comparison.php#language.oop5.object-comparison
    /*
     */





    /**
    /*
    /* Testing operators: < and >
    /*
     */

    //Test case
    //Variations: amount, values and keys (order)
    //Test count: 10
    //    Failed: 0
    //    Passed: 10
    {
        //Test case 1.1
        $a = (object)["a" => 1];
        $b = (object)["a" => 1];

        //Passed
        var_dump("Same amount of elements, keys and values: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.2
        $a = (object)["a" => 1];
        $b = (object)["a" => 1, "b" => 1];

        //Passed
        var_dump("NOT same amount of elements, but same values: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.3
        $a = (object)["a" => 10];
        $b = (object)["a" => 1, "b" => 1];

        //Passed
        var_dump("NOT same amount of elements nor values: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.4
        $a = (object)["a" => 1];
        $b = (object)["b" => 1];

        //Passed
        var_dump("Same amount of element and values, NOT same keys: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.5
        $a = (object)["a" => 10];
        $b = (object)["a" => 1];

        //Passed
        var_dump("Same amount of elements and keys, NOT same values: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.6
        $a = (object)["a" => 1, "b" => 1];
        $b = (object)["b" => 1, "a" => 1];

        //Passed
        var_dump("Same amount of elements and keys in different order: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.7
        $a = (object)["a" => 1, "b" => 5];
        $b = (object)["b" => 5];

        //Passed
        var_dump("Same values, NOT same amount of elements nor keys: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.8
        $a = (object)["c" => 1];
        $b = (object)["a" => 10];

        //Passed
        var_dump("NOT same keys nor values: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.9
        $a = (object)["a" => 1, "b" => 1];
        $b = (object)["b" => 10, "a" => 1];

        //Passed
        var_dump("Same amount of elements and values, NOT same keys nor order: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

        //Test case 1.10
        class A {public $a = 1;}
        $a = new A;
        class B {public $a = 1;}
        $b = new B;

        //Passed
        var_dump("Same amount of elements and values and keys, but different  not built-in class: " . "'<' -> " . bool2str($a < $b) . " '>' -> " . bool2str($a > $b));

    }


    echo PHP_EOL . PHP_EOL . PHP_EOL;  //Test case separator

    /**
    /*
    /* Test case end
    /*
     */





    /**
    /*
    /* Testing operators: == and ===
    /*
     */

    //Test case
    //Variations: amount, values and keys (order)
    //Test count: 7
    //    Failed: 0
    //    Passed: 7
    {
        //Test case 2.1
        $a = (object)["a" => 1];
        $b = (object)["a" => 1];

        //Passed
        var_dump("Same amount of elements, values and keys: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

        //Test case 2.2
        $a = (object)["a" => 1];
        $b = (object)["a" => 10, "b" => 1];

        //Passed
        var_dump("NOT same amount of elements, but same values: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

        //Test case 2.3
        $a = (object)["a" => 10];
        $b = (object)["a" => 1];

        //Passed
        var_dump("Same amount of elements, but not values: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

        //Test case 2.4
        $a = (object)["a" => 1];
        $b = (object)["b" => 1];

        //Passed
        var_dump("Same amount of elements and values, but not keys: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

        //Test case 2.5
        $a = (object)["a" => 1, "b" => 2];
        $b = (object)["b" => 2, "a" => 1];

        //Passed
        var_dump("Same amount of elements, key and values, but different order: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

        //Test case 2.6
        class C {public $a = 1;}
        $a = new A;
        class D {public $a = 1;}
        $b = new B;

        //Passed
        var_dump("Same amount of elements and values and keys, but different  not built-in class: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

        //Test case 2.7
        $a = (object)["a" => 1];
        $b = $a;

        //Passed
        var_dump("Same exact instance: " . "'==' -> " . bool2str($a == $b) . " '===' -> " . bool2str($a === $b));

    }


    echo PHP_EOL . PHP_EOL . PHP_EOL;  //Test case separator

    /**
    /*
    /* Test case end
    /*
     */



    //NULL, TRUE, FALSE 2 str func
    function bool2str($v){if($v === NULL)return "NULL";elseif($v === FALSE)return "FALSE";elseif($v === TRUE)return "TRUE";else return "UNEXPECTED: '$v'";}

?>