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ldp.js
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var assert = require('chai').assert;
var $rdf = require('rdflib');
var ns = require('../lib/vocab/ns.js').ns;
var LDP = require('../lib/ldp');
// Helper functions for the FS
var rm = require('./test-utils').rm;
var write = require('./test-utils').write;
var cp = require('./test-utils').cp;
var read = require('./test-utils').read;
var fs = require('fs');
describe('LDP', function () {
var ldp = new LDP();
describe('readFile', function () {
it ('return 404 if file does not exist', function (done) {
ldp.readFile('resources/unexistent.ttl', function(err) {
assert.equal(err.status, 404);
done();
});
});
it ('return file if file exists', function (done) {
// file can be empty as well
write('hello world', 'fileExists.txt');
ldp.readFile(__dirname + '/resources/fileExists.txt', function(err, file) {
rm('fileExists.txt');
assert.notOk(err);
assert.equal(file, 'hello world');
done();
});
});
});
describe('readContainerMeta', function () {
it ('should return 404 if .meta is not found', function (done) {
ldp.readContainerMeta('resources/', function(err) {
assert.equal(err.status, 404);
done();
});
});
it ('should return content if metaFile exists', function (done) {
// file can be empty as well
write('This function just reads this, does not parse it', '.meta');
ldp.readContainerMeta(__dirname + '/resources/', function(err, metaFile) {
rm('.meta');
assert.notOk(err);
assert.equal(metaFile, 'This function just reads this, does not parse it');
done();
});
});
it ('should work also if trailing `/` is not passed', function (done) {
// file can be empty as well
write('This function just reads this, does not parse it', '.meta');
ldp.readContainerMeta(__dirname + '/resources', function(err, metaFile) {
rm('.meta');
assert.notOk(err);
assert.equal(metaFile, 'This function just reads this, does not parse it');
done();
});
});
});
describe('put', function() {
it('should write a file in an existing dir', function(done) {
ldp.put(__dirname + '/resources/testPut.txt', 'hello world', function (err) {
assert.notOk(err);
var found = read('testPut.txt');
rm('testPut.txt');
assert.equal(found, 'hello world');
done();
});
});
it('should fail if a trailing `/` is passed', function(done) {
ldp.put(__dirname + '/resources/', 'hello world', function (err) {
assert.equal(err.status, 409);
done();
});
});
});
describe('listContainer', function () {
it('should inherit type if file is .ttl', function(done) {
write('@prefix dcterms: <http://purl.org/dc/terms/>.' +
'@prefix o: <http://example.org/ontology>.' +
'<> a <http://www.w3.org/ns/ldp#MagicType> ;' +
' dcterms:title "This is a magic type" ;' +
' o:limit 500000.00 .', 'sampleContainer/magicType.ttl');
ldp.listContainer(__dirname + '/resources/sampleContainer/', 'https://server.tld', '', function (err, data) {
var graph = $rdf.graph();
$rdf.parse(
data,
graph,
'https://server.tld/sampleContainer',
'text/turtle');
var statements = graph
.each(
$rdf.sym('https://server.tld/magicType.ttl'),
ns.rdf('type'),
undefined)
.map(function(d) {
return d.uri;
});
assert.equal(statements.length, 2);
assert.isAbove(statements.indexOf('http://www.w3.org/ns/ldp#MagicType'), -1);
assert.isAbove(statements.indexOf('http://www.w3.org/ns/posix/stat#File'), -1);
rm('sampleContainer/magicType.ttl');
done();
});
});
it('should not inherit type of BasicContainer/Container if type is File', function(done) {
write('@prefix dcterms: <http://purl.org/dc/terms/>.' +
'@prefix o: <http://example.org/ontology>.' +
'<> a <http://www.w3.org/ns/ldp#Container> ;' +
' dcterms:title "This is a container" ;' +
' o:limit 500000.00 .', 'sampleContainer/containerFile.ttl');
write('@prefix dcterms: <http://purl.org/dc/terms/>.' +
'@prefix o: <http://example.org/ontology>.' +
'<> a <http://www.w3.org/ns/ldp#BasicContainer> ;' +
' dcterms:title "This is a container" ;' +
' o:limit 500000.00 .', 'sampleContainer/basicContainerFile.ttl');
ldp.listContainer(__dirname + '/resources/sampleContainer/', 'https://server.tld', '', function (err, data) {
var graph = $rdf.graph();
$rdf.parse(
data,
graph,
'https://server.tld/sampleContainer',
'text/turtle');
var basicContainerStatements = graph.each(
$rdf.sym('https://server.tld/basicContainerFile.ttl'),
ns.rdf('type'),
undefined);
assert.equal(basicContainerStatements.length, 1);
var containerStatements = graph.each(
$rdf.sym('https://server.tld/containerFile.ttl'),
ns.rdf('type'),
undefined);
assert.equal(containerStatements.length, 1);
basicContainerStatements.forEach(function(statement) {
assert.equal(statement.uri, ns.stat('File').uri);
});
containerStatements.forEach(function(statement) {
assert.equal(statement.uri, ns.stat('File').uri);
});
rm('sampleContainer/containerFile.ttl');
rm('sampleContainer/basicContainerFile.ttl');
done();
});
});
it('should ldp:contains the same amount of files in dir', function(done) {
ldp.listContainer(__dirname + '/resources/sampleContainer/', 'https://server.tld', '', function (err, data) {
fs.readdir(__dirname + '/resources/sampleContainer/', function(err, files) {
var graph = $rdf.graph();
$rdf.parse(
data,
graph,
'https://server.tld/sampleContainer',
'text/turtle');
var statements = graph.each(
undefined,
ns.ldp('contains'),
undefined);
assert.notEqual(graph.statements.length, 0);
assert.equal(statements.length, files.length);
assert.notOk(err);
done();
});
});
});
});
});