silverstripe-framework/tests/php/Control/HTTPStreamResponseTest.php

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<?php
namespace SilverStripe\Control\Tests;
use SilverStripe\Control\HTTPStreamResponse;
use SilverStripe\Dev\SapphireTest;
class HTTPStreamResponseTest extends SapphireTest
{
/**
* Test replaying of stream from memory
*/
public function testReplayStream()
{
$path = __DIR__ . '/HTTPStreamResponseTest/testfile.txt';
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$stream = fopen($path ?? '', 'r');
$response = new HTTPStreamResponse($stream, filesize($path ?? ''));
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// Test body (should parse stream directly into memory)
$this->assertEquals("Test output\n", $response->getBody());
// Test stream output
ob_start();
$response->output();
$result = ob_get_contents();
ob_end_clean();
$this->assertEquals(12, $response->getHeader('Content-Length'));
$this->assertEquals("Test output\n", $result);
}
/**
* Test stream directly without loading into memory
*/
public function testDirectStream()
{
$path = __DIR__ . '/HTTPStreamResponseTest/testfile.txt';
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$stream = fopen($path ?? '', 'r');
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$metadata = stream_get_meta_data($stream);
$this->assertTrue($metadata['seekable']);
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$response = new HTTPStreamResponse($stream, filesize($path ?? ''));
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// Test stream output
ob_start();
$response->output();
$result = ob_get_contents();
ob_end_clean();
$this->assertEquals(12, $response->getHeader('Content-Length'));
$this->assertEquals("Test output\n", $result);
$this->assertEmpty($response->getSavedBody(), 'Body of seekable stream is un-cached');
// Seekable stream can be repeated
ob_start();
$response->output();
$result = ob_get_contents();
ob_end_clean();
$this->assertEquals(12, $response->getHeader('Content-Length'));
$this->assertEquals("Test output\n", $result);
$this->assertEmpty($response->getSavedBody(), 'Body of seekable stream is un-cached');
}
}