var log = console.log
    , assert = require( 'assert' )
    , Qap = require( '../' )
    , spattern = '---------------hellofolks!!!!!!!!!!!!\r\n\r\n\r\n'
    , splen = spattern.length
    // 2^n times
    , n = 8
    , tlen = splen * n
    , indexes = []
    , data = new Buffer( Math.pow( 2, n ) * 1024 * 1024 )
    , dlen = data.length
    , bpattern = null
    , i = 0
    , offset = 0
    , qap = null
    , result = null
    ;

log( '- create a long pattern with ' + n + ' repetition of itself side by side' );

for ( ; i < n; ++i ) {
    spattern += spattern;
};

log( '- resulting pattern length is ' + spattern.length / 1024 + ' KB' );
bpattern = new Buffer( spattern );

log( '- create a test data buffer (' + ( data.length / 1024 / 1024 ) + ' MB) copying ' + n + ' patterns' );

for ( i = 0; i < n; ++i ) {
    offset = bpattern.length * Math.pow( 2, 2 * i );
    indexes.push( offset );
    bpattern.copy( data, offset );
};

log( '- parse data for patterns and get results' );
qap = Qap( bpattern );
results = qap.parse( data );

log( '- check results length, it should be equal to ' + n );
assert.equal( results.length, n, 'results length is wrong, must be ' + n + ', now it\'s ' + results.length );

log( '- compare returned results and pre-recorded indexes, indexes should match' );
assert.deepEqual( results, indexes, 'results don\'t match : ' + indexes + ' !== ' + results );