MockFileBackend.php

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<?php
class MockFileBackend extends FileBackendStore {

    protected $mocked = array();

    protected function debug( $msg = '' ) {
        wfDebug( wfGetCaller() . "$msg\n" );
    }

    public function isPathUsableInternal( $storagePath ) {
        return true;
    }

    protected function doCreateInternal( array $params ) {
        if ( isset( $params['content'] ) ) {
            $content = $params['content'];
        } else {
            $content = 'Default mocked file content';
        }
        $this->debug( serialize( $params ) );
        $dst = $params['dst'];
        $this->mocked[$dst] = $content;
        return Status::newGood();
    }

    protected function doStoreInternal( array $params ) {
        $this->debug( serialize( $params ) );
        return $this->doCreateInternal( $params );
    }

    protected function doCopyInternal( array $params ) {
        $this->debug( serialize( $params ) );
        $src = $params['src'];
        $dst = $params['dst'];
        $this->mocked[$dst] = $this->mocked[$src];
        return Status::newGood();
    }

    protected function doDeleteInternal( array $params ) {
        $this->debug( serialize( $params ) );
        $src = $params['src'];
        unset( $this->mocked[$src] );
        return Status::newGood();
    }

    protected function doGetFileStat( array $params ) {
        $src = $params['src'];
        if ( array_key_exists( $src, $this->mocked ) ) {
            $this->debug( "('$src') found" );
            return array(
                'mtime' => wfTimestamp( TS_MW ),
                'size' => strlen( $this->mocked[$src] ),
                # No sha1, stat does not need it.
            );
        } else {
            $this->debug( "('$src') not found" );
            return false;
        }
    }

    protected function doGetLocalCopyMulti( array $params ) {
        $tmpFiles = array(); // (path => MockFSFile)

        $this->debug( '(' . serialize( $params ) . ')' );
        foreach ( $params['srcs'] as $src ) {
            $tmpFiles[$src] = new MockFSFile(
                wfTempDir() . '/' . wfRandomString( 32 )
            );
        }
        return $tmpFiles;
    }

    protected function doDirectoryExists( $container, $dir, array $params ) {
        $this->debug();
        return true;
    }

    public function getDirectoryListInternal( $container, $dir, array $params ) {
        $this->debug();
        return array();
    }

    public function getFileListInternal( $container, $dir, array $params ) {
        $this->debug();
        return array();
    }

    protected function directoriesAreVirtual() {
        $this->debug();
        return true;
    }
}