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Completed
Push — master ( 675da0...765c9a )
by Changwan
02:43
created

LengthBetweenTester::test()   B

↳ Parent: LengthBetweenTester

Complexity

Conditions 5
Paths 6

Size

Total Lines 9
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Code Coverage

Tests 6
CRAP Score 5

Importance

Changes 0
Metric Value
cc 5
eloc 6
nc 6
nop 3
dl 0
loc 9
ccs 6
cts 6
cp 1
crap 5
rs 8.8571
c 0
b 0
f 0
1 
<?php
2 
namespace Wandu\Validator\Testers;
3 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Wandu\Validator\Contracts\Tester;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class LengthBetweenTester implements Tester

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /** @var int */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected $min;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /** @var int */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    protected $max;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param int $min

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param int $max

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function __construct($min, $max)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->min = $min;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $this->max = $max;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                             1                         
                
                
                
    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * {@inheritdoc}

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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     */

            


            
                                                        
            
                                    
            
            

                
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    public function test($data, $origin = null, array $keys = []): bool

            


            
                                                        
            
                                    
            
            

                
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    {

            


            
                                                        
            
                                    
            
            

                
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        if (is_array($data) || $data instanceof \Countable) {

            


            
                                                        
            
                                    
            
            

                
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            $length = count($data);

            


            
                                                        
            
                                    
            
            

                
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        } elseif (is_string($data)) {

            


            
                                                        
            
                                    
            
            

                
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            $length = mb_strlen($data, 'utf-8');

            


            
                                                        
            
                                    
            
            

                
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        }

            


            
                                                        
            
                                    
            
            

                
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        return $length >= $this->min && $length <= $this->max;

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

                            –
                            show
                        


                        

                                                                                        




    

        
            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
The variable $length does not seem to be defined for all execution paths leading up to this point.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
If you define a variable conditionally, it can happen that it is not defined
for all execution paths.


Let’s take a look at an example:


function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}





In the above example, the variable $x is defined if you pass “foo” or “bar”
as argument for $a. However, since the switch statement has no default
case statement, if you pass any other value, the variable $x would be undefined.




Available Fixes


  1. Check for existence of the variable explicitly:
    

    function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    if (isset($x)) { // Make sure it's always set.
        echo $x;
    }
}

    

    

    2. 

  2. Define a default value for the variable:
    

    function myFunction($a) {
    $x = ''; // Set a default which gets overridden for certain paths.
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    echo $x;
}

    

    

    3. 

  3. Add a value for the missing path:
    

    function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;

        // We add support for the missing case.
        default:
            $x = '';
            break;
    }

    echo $x;
}

    

    

    4. 



                        

                                                    

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    }

            


            
                                                        
            
                                    
            
            

                
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}

            


            
                                                        
            
                                    
            
            

                
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