ExternalStoreForTesting.php
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ExternalStoreForTesting.php
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	<?php

	class ExternalStoreForTesting {

	/** @var array */
	protected $data = [
	'cluster1' => [
	'200' => 'Hello',
	'300' => [
	'Hello', 'World',
	],
	// gzip string below generated with gzdeflate( 'AAAABBAAA' )
	'12345' => "sttttr\002\022\000",
	],
	];

	/**
	* Fetch data from given URL
	* @param string $url An url of the form FOO://cluster/id or FOO://cluster/id/itemid.
	* @return mixed
	*/
	public function fetchFromURL( $url ) {
	// Based on ExternalStoreDB
	$path = explode( '/', $url );
	$cluster = $path[2];
	$id = $path[3];
	$itemID = $path[4] ?? false;

	if ( !isset( $this->data[$cluster][$id] ) ) {
	return null;
	}

	if ( $itemID !== false
	&& is_array( $this->data[$cluster][$id] )
	&& isset( $this->data[$cluster][$id][$itemID] )
	) {
	return $this->data[$cluster][$id][$itemID];
	}

	return $this->data[$cluster][$id];
	}

	/** @inheritDoc */
	public function store( $location, $data ) {
	$itemId = mt_rand( 500, 1000 );
	$this->data[$location][$itemId] = $data;
	return "ForTesting://$location/$itemId";
	}

	/** @inheritDoc */
	public function isReadOnly() {
	return false;
	}

	}