(function() {

    if (typeof getToolTest === 'undefined') {
        load('jstests/configs/plain_28.config.js');
    }

    // Tests running mongoexport with --limit specified.

    jsTest.log('Testing exporting with --limit');

    var toolTest = getToolTest('limit');
    var commonToolArgs = getCommonToolArguments();

    // the export target
    var exportTarget = 'limit_export.json';
    removeFile(exportTarget);

    // the db and collection we'll use
    var testDB = toolTest.db.getSiblingDB('test');
    var testColl = testDB.data;

    // insert some data
    for (var i = 0; i < 50; i++) {
        testColl.insert({ a: i });
    }
    // sanity check the insertion worked
    assert.eq(50, testColl.count());

    // export the data, using --limit
    var ret = toolTest.runTool.apply(
        toolTest,
        ['export', '--out', exportTarget, '--db', 'test',
            '--collection', 'data', '--sort', '{a:1}', 
            '--limit', '20'].
            concat(commonToolArgs)
    );
    assert.eq(0, ret);

    // drop the database
    testDB.dropDatabase();

    // import the data back in
    ret = toolTest.runTool.apply(
        toolTest,
        ['import', '--file', exportTarget, '--db', 'test',
            '--collection', 'data'].
            concat(commonToolArgs)
    );
    assert.eq(0, ret);

    // make sure the limit was applied to the export
    assert.eq(20, testColl.count());
    for (var i = 0; i < 20; i++) {
        assert.eq(1, testColl.count({ a: i }));
    }

    // success
    toolTest.stop();
    

}());
