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var assert = require("assert");
var xml = require("../../lib/xml");
var writer = require("../../lib/xml/writer");
var test = require("../testing").test;
describe('xml.writer', function() {
test('writing empty root element writes out xml declaration and empty root element', function() {
assertXmlString(xml.element("root"), {}, '<root/>');
});
test('can write empty child elements', function() {
assertXmlString(xml.element("root", {}, [xml.element("album"), xml.element("single")]), {},
'<root><album/><single/></root>');
});
test('can write empty descendant elements', function() {
var element = xml.element("root", {}, [
xml.element("album", {}, [
xml.element("year"),
xml.element("song")
])
]);
assertXmlString(element, {},
'<root><album><year/><song/></album></root>');
});
test('can write element attributes', function() {
var element = xml.element("root", {}, [
xml.element("album", {"title": "Everything in Transit"})
]);
assertXmlString(element, {},
'<root><album title="Everything in Transit"/></root>');
});
test('can write text nodes', function() {
var element = xml.element("root", {}, [
xml.element("album", {}, [
xml.text("Everything in Transit")
])
]);
assertXmlString(element, {},
'<root><album>Everything in Transit</album></root>');
});
test('can write root element with long-form prefix when URI is namespace', function() {
var element = xml.element("{music}root");
assertXmlString(element, {"m": "music"},
'<m:root xmlns:m="music"/>');
});
test('can write child elements with long-form prefix when URI is namespace', function() {
var element = xml.element("root", {}, [
xml.element("{music}album")
]);
assertXmlString(element, {"m": "music"},
'<root xmlns:m="music"><m:album/></root>');
});
test('can write child elements with short-form prefix when URI is namespace', function() {
var element = xml.element("root", {}, [
xml.element("m:album")
]);
assertXmlString(element, {"m": "music"},
'<root xmlns:m="music"><m:album/></root>');
});
test('default namespace has key of empty string', function() {
var element = xml.element("root", {}, [
xml.element("{music}album")
]);
assertXmlString(element, {"": "music"},
'<root xmlns="music"><album/></root>');
});
});
function assertXmlString(element, namespaces, expectedString) {
assert.equal(writer.writeString(element, namespaces),
'<?xml version="1.0" encoding="UTF-8" standalone="yes"?>' +
expectedString);
}
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