ExternalStoreForTesting.php

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<?php
 
class ExternalStoreForTesting {
 
    protected $data = [
        'cluster1' => [
            '200' => 'Hello',
            '300' => [
                'Hello', 'World',
            ],
            // gzip string below generated with gzdeflate( 'AAAABBAAA' )
            '12345' => "sttttr\002\022\000",
        ],
    ];
 
    public function fetchFromURL( $url ) {
        // Based on ExternalStoreDB
        $path = explode( '/', $url );
        $cluster = $path[2];
        $id = $path[3];
        if ( isset( $path[4] ) ) {
            $itemID = $path[4];
        } else {
            $itemID = 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];
    }
 
}