CurrentCachedIteratorTest   A
last analyzed

Complexity

Total Complexity 1

Size/Duplication

Total Lines 22
Duplicated Lines 0 %

Coupling/Cohesion

Components 0
Dependencies 3

Importance

Changes 0
Metric Value
wmc 1
lcom 0
cbo 3
dl 0
loc 22
rs 10
c 0
b 0
f 0

1 Method

Rating   Name   Duplication   Size   Complexity  
A testMainFunctionality() 0 18 1
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<?php
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namespace itertools;
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use PHPUnit_Framework_TestCase;
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use CallbackFilterIterator;
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Bug introduced by
This use statement conflicts with another class in this namespace, itertools\CallbackFilterIterator.

Let’s assume that you have a directory layout like this:

.
|-- OtherDir
|   |-- Bar.php
|   `-- Foo.php
`-- SomeDir
    `-- Foo.php

and let’s assume the following content of Bar.php:

// Bar.php
namespace OtherDir;

use SomeDir\Foo; // This now conflicts the class OtherDir\Foo

If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the same runtime, you will see a PHP error such as the following:

PHP Fatal error:  Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php

However, as OtherDir/Foo.php does not necessarily have to be loaded and the error is only triggered if it is loaded before OtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias:

// Bar.php
namespace OtherDir;

use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore.
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use ArrayIterator;
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class CurrentCachedIteratorTest extends PHPUnit_Framework_TestCase {
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	/** @test */
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	public function testMainFunctionality() {
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		$count = 0;
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		$it = new CurrentCachedIterator(new MapIterator(new ArrayIterator(range(0, 10)), function() use (&$count) { $count += 1; return null; }));
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		$it->rewind();
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		$it->valid();
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		$it->current();
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		$it->valid();
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		$it->next();
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		$it->current();
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		$it->current();
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		$it->current();
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		$it->valid();
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		$it->next();
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		$it->current();
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		$this->assertEquals(3, $count);
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	}
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}
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