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<?php
namespace Guzzle\Tests\Iterator;
use Guzzle\Iterator\ChunkedIterator;
/**
* @covers Guzzle\Iterator\ChunkedIterator
*/
class ChunkedIteratorTest extends \PHPUnit_Framework_TestCase
{
public function testChunksIterator()
{
$chunked = new ChunkedIterator(new \ArrayIterator(range(0, 100)), 10);
$chunks = iterator_to_array($chunked, false);
$this->assertEquals(11, count($chunks));
foreach ($chunks as $j => $chunk) {
$this->assertEquals(range($j * 10, min(100, $j * 10 + 9)), $chunk);
}
}
public function testChunksIteratorWithOddValues()
{
$chunked = new ChunkedIterator(new \ArrayIterator(array(1, 2, 3, 4, 5)), 2);
$chunks = iterator_to_array($chunked, false);
$this->assertEquals(3, count($chunks));
$this->assertEquals(array(1, 2), $chunks[0]);
$this->assertEquals(array(3, 4), $chunks[1]);
$this->assertEquals(array(5), $chunks[2]);
}
public function testMustNotTerminateWithTraversable()
{
$traversable = simplexml_load_string('<root><foo/><foo/><foo/></root>')->foo;
$chunked = new ChunkedIterator($traversable, 2);
$actual = iterator_to_array($chunked, false);
$this->assertCount(2, $actual);
}
public function testSizeOfZeroMakesIteratorInvalid() {
$chunked = new ChunkedIterator(new \ArrayIterator(range(1, 5)), 0);
$chunked->rewind();
$this->assertFalse($chunked->valid());
}
/**
* @expectedException \InvalidArgumentException
*/
public function testSizeLowerZeroThrowsException() {
new ChunkedIterator(new \ArrayIterator(range(1, 5)), -1);
}
}
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