var mg = require('micrograph');

mg.create(function(g) {
 	g.save([{$type: 'Person',
 		     name: 'Ludwig',
 		     surname: 'Wittgenstein',
 		     birthplace: 'Wien',
 	         author: [{$type: 'Book',
 		         	   title: 'Tractatus Logico-Philosophicus'},
 		      	      {$type: 'Book',
 		      	       title: 'Philosophical Investigations'}]},
 		    {$type: 'Person',
 		     name: 'Karl',
 		     surname: 'Popper',
 		     author: {$type: 'Book',
 		     	      title: 'The Open Society and its Enemies'}}]).
 	    where({author$in: {surname: 'Wittgenstein'}}).
        removeNodes(function(removed) {
 		        assert(removed === 2);
 	    }).
 	    where({author$in: {}}).
 	    all(function(authored){
 		    assert(authored.length === 1);
 		    assert(authored[0].title === 'The Open Society and its Enemies');
 		    assert(authored[0].author$in.surname === "Popper");		
 	    });
    });