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parse.js
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parse.js
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var parse = require('../lib/parse');
var defaultOpts = require('../lib/options').default;
// Tags
var basic = '<html></html>';
var siblings = '<h2></h2><p></p>';
// Single Tags
var single = '<br/>';
var singleWrong = '<br>';
// Children
var children = '<html><br/></html>';
var li = '<li class="durian">Durian</li>';
// Attributes
var attributes = '<img src="hello.png" alt="man waving">';
var noValueAttribute = '<textarea disabled></textarea>';
// Comments
var comment = '<!-- sexy -->';
var conditional =
'<!--[if IE 8]><html class="no-js ie8" lang="en"><![endif]-->';
// Text
var text = 'lorem ipsum';
// Script
var script = '<script type="text/javascript">alert("hi world!");</script>';
var scriptEmpty = '<script></script>';
// Style
var style = '<style type="text/css"> h2 { color:blue; } </style>';
var styleEmpty = '<style></style>';
// Directives
var directive = '<!doctype html>';
describe('parse', function () {
describe('evaluate', function () {
it('should parse basic empty tags: ' + basic, function () {
var tag = parse(basic, defaultOpts, true).children[0];
expect(tag.type).toBe('tag');
expect(tag.tagName).toBe('html');
expect(tag.childNodes).toHaveLength(2);
});
it('should handle sibling tags: ' + siblings, function () {
var dom = parse(siblings, defaultOpts, false).children;
var h2 = dom[0];
var p = dom[1];
expect(dom).toHaveLength(2);
expect(h2.tagName).toBe('h2');
expect(p.tagName).toBe('p');
});
it('should handle single tags: ' + single, function () {
var tag = parse(single, defaultOpts, false).children[0];
expect(tag.type).toBe('tag');
expect(tag.tagName).toBe('br');
expect(tag.childNodes).toHaveLength(0);
});
it('should handle malformatted single tags: ' + singleWrong, function () {
var tag = parse(singleWrong, defaultOpts, false).children[0];
expect(tag.type).toBe('tag');
expect(tag.tagName).toBe('br');
expect(tag.childNodes).toHaveLength(0);
});
it('should handle tags with children: ' + children, function () {
var tag = parse(children, defaultOpts, true).children[0];
expect(tag.type).toBe('tag');
expect(tag.tagName).toBe('html');
expect(tag.childNodes).toBeTruthy();
expect(tag.childNodes[1].tagName).toBe('body');
expect(tag.childNodes[1].childNodes).toHaveLength(1);
});
it('should handle tags with children: ' + li, function () {
var tag = parse(li, defaultOpts, false).children[0];
expect(tag.childNodes).toHaveLength(1);
expect(tag.childNodes[0].data).toBe('Durian');
});
it('should handle tags with attributes: ' + attributes, function () {
var attrs = parse(attributes, defaultOpts, false).children[0].attribs;
expect(attrs).toBeTruthy();
expect(attrs.src).toBe('hello.png');
expect(attrs.alt).toBe('man waving');
});
it('should handle value-less attributes: ' + noValueAttribute, function () {
var attrs = parse(noValueAttribute, defaultOpts, false).children[0]
.attribs;
expect(attrs).toBeTruthy();
expect(attrs.disabled).toBe('');
});
it('should handle comments: ' + comment, function () {
var elem = parse(comment, defaultOpts, false).children[0];
expect(elem.type).toBe('comment');
expect(elem.data).toBe(' sexy ');
});
it('should handle conditional comments: ' + conditional, function () {
var elem = parse(conditional, defaultOpts, false).children[0];
expect(elem.type).toBe('comment');
expect(elem.data).toBe(
conditional.replace('<!--', '').replace('-->', '')
);
});
it('should handle text: ' + text, function () {
var text_ = parse(text, defaultOpts, false).children[0];
expect(text_.type).toBe('text');
expect(text_.data).toBe('lorem ipsum');
});
it('should handle script tags: ' + script, function () {
var script_ = parse(script, defaultOpts, false).children[0];
expect(script_.type).toBe('script');
expect(script_.tagName).toBe('script');
expect(script_.attribs.type).toBe('text/javascript');
expect(script_.childNodes).toHaveLength(1);
expect(script_.childNodes[0].type).toBe('text');
expect(script_.childNodes[0].data).toBe('alert("hi world!");');
});
it('should handle style tags: ' + style, function () {
var style_ = parse(style, defaultOpts, false).children[0];
expect(style_.type).toBe('style');
expect(style_.tagName).toBe('style');
expect(style_.attribs.type).toBe('text/css');
expect(style_.childNodes).toHaveLength(1);
expect(style_.childNodes[0].type).toBe('text');
expect(style_.childNodes[0].data).toBe(' h2 { color:blue; } ');
});
it('should handle directives: ' + directive, function () {
var elem = parse(directive, defaultOpts, true).children[0];
expect(elem.type).toBe('directive');
expect(elem.data).toBe('!DOCTYPE html ""');
expect(elem.tagName).toBe('!doctype');
});
});
describe('.parse', function () {
// root test utility
function rootTest(root) {
expect(root.tagName).toBe('root');
expect(root.nextSibling).toBe(null);
expect(root.previousSibling).toBe(null);
expect(root.parentNode).toBe(null);
var child = root.childNodes[0];
expect(child.parentNode).toBe(root);
}
it('should add root to: ' + basic, function () {
var root = parse(basic, defaultOpts, true);
rootTest(root);
expect(root.childNodes).toHaveLength(1);
expect(root.childNodes[0].tagName).toBe('html');
});
it('should add root to: ' + siblings, function () {
var root = parse(siblings, defaultOpts, false);
rootTest(root);
expect(root.childNodes).toHaveLength(2);
expect(root.childNodes[0].tagName).toBe('h2');
expect(root.childNodes[1].tagName).toBe('p');
expect(root.childNodes[1].parent).toBe(root);
});
it('should add root to: ' + comment, function () {
var root = parse(comment, defaultOpts, false);
rootTest(root);
expect(root.childNodes).toHaveLength(1);
expect(root.childNodes[0].type).toBe('comment');
});
it('should add root to: ' + text, function () {
var root = parse(text, defaultOpts, false);
rootTest(root);
expect(root.childNodes).toHaveLength(1);
expect(root.childNodes[0].type).toBe('text');
});
it('should add root to: ' + scriptEmpty, function () {
var root = parse(scriptEmpty, defaultOpts, false);
rootTest(root);
expect(root.childNodes).toHaveLength(1);
expect(root.childNodes[0].type).toBe('script');
});
it('should add root to: ' + styleEmpty, function () {
var root = parse(styleEmpty, defaultOpts, false);
rootTest(root);
expect(root.childNodes).toHaveLength(1);
expect(root.childNodes[0].type).toBe('style');
});
it('should add root to: ' + directive, function () {
var root = parse(directive, defaultOpts, true);
rootTest(root);
expect(root.childNodes).toHaveLength(2);
expect(root.childNodes[0].type).toBe('directive');
});
it('should simply return root', function () {
var oldroot = parse(basic, defaultOpts, true);
var root = parse(oldroot, defaultOpts, true);
expect(root).toBe(oldroot);
rootTest(root);
expect(root.childNodes).toHaveLength(1);
expect(root.childNodes[0].tagName).toBe('html');
});
it('should expose the DOM level 1 API', function () {
var root = parse(
'<div><a></a><span></span><p></p></div>',
defaultOpts,
false
).childNodes[0];
var childNodes = root.childNodes;
expect(childNodes).toHaveLength(3);
expect(root.tagName).toBe('div');
expect(root.firstChild).toBe(childNodes[0]);
expect(root.lastChild).toBe(childNodes[2]);
expect(childNodes[0].tagName).toBe('a');
expect(childNodes[0].previousSibling).toBe(null);
expect(childNodes[0].nextSibling).toBe(childNodes[1]);
expect(childNodes[0].parentNode).toBe(root);
expect(childNodes[0].childNodes).toHaveLength(0);
expect(childNodes[0].firstChild).toBe(null);
expect(childNodes[0].lastChild).toBe(null);
expect(childNodes[1].tagName).toBe('span');
expect(childNodes[1].previousSibling).toBe(childNodes[0]);
expect(childNodes[1].nextSibling).toBe(childNodes[2]);
expect(childNodes[1].parentNode).toBe(root);
expect(childNodes[1].childNodes).toHaveLength(0);
expect(childNodes[1].firstChild).toBe(null);
expect(childNodes[1].lastChild).toBe(null);
expect(childNodes[2].tagName).toBe('p');
expect(childNodes[2].previousSibling).toBe(childNodes[1]);
expect(childNodes[2].nextSibling).toBe(null);
expect(childNodes[2].parentNode).toBe(root);
expect(childNodes[2].childNodes).toHaveLength(0);
expect(childNodes[2].firstChild).toBe(null);
expect(childNodes[2].lastChild).toBe(null);
});
it('Should parse less than or equal sign sign', function () {
var root = parse('<i>A</i><=<i>B</i>', defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes[0].tagName).toBe('i');
expect(childNodes[0].childNodes[0].data).toBe('A');
expect(childNodes[1].data).toBe('<=');
expect(childNodes[2].tagName).toBe('i');
expect(childNodes[2].childNodes[0].data).toBe('B');
});
it('Should ignore unclosed CDATA', function () {
var root = parse(
'<a></a><script>foo //<![CDATA[ bar</script><b></b>',
defaultOpts,
false
);
var childNodes = root.childNodes;
expect(childNodes[0].tagName).toBe('a');
expect(childNodes[1].tagName).toBe('script');
expect(childNodes[1].childNodes[0].data).toBe('foo //<![CDATA[ bar');
expect(childNodes[2].tagName).toBe('b');
});
it('Should add <head> to documents', function () {
var root = parse('<html></html>', defaultOpts, true);
var childNodes = root.childNodes;
expect(childNodes[0].tagName).toBe('html');
expect(childNodes[0].childNodes[0].tagName).toBe('head');
});
it('Should implicitly create <tr> around <td>', function () {
var root = parse('<table><td>bar</td></tr></table>', defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes[0].tagName).toBe('table');
expect(childNodes[0].childNodes.length).toBe(1);
expect(childNodes[0].childNodes[0].tagName).toBe('tbody');
expect(childNodes[0].childNodes[0].childNodes[0].tagName).toBe('tr');
expect(
childNodes[0].childNodes[0].childNodes[0].childNodes[0].tagName
).toBe('td');
expect(
childNodes[0].childNodes[0].childNodes[0].childNodes[0].childNodes[0]
.data
).toBe('bar');
});
it('Should parse custom tag <line>', function () {
var root = parse('<line>test</line>', defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes.length).toBe(1);
expect(childNodes[0].tagName).toBe('line');
expect(childNodes[0].childNodes[0].data).toBe('test');
});
it('Should properly parse misnested table tags', function () {
var root = parse(
'<tr><td>i1</td></tr><tr><td>i2</td></td></tr><tr><td>i3</td></td></tr>',
defaultOpts,
false
);
var childNodes = root.childNodes;
expect(childNodes.length).toBe(3);
childNodes.forEach(function (child, i) {
expect(child.tagName).toBe('tr');
expect(child.childNodes[0].tagName).toBe('td');
expect(child.childNodes[0].childNodes[0].data).toBe('i' + (i + 1));
});
});
it('Should correctly parse data url attributes', function () {
var html =
'<div style=\'font-family:"butcherman-caps"; src:url(data:font/opentype;base64,AAEA...);\'></div>';
var expectedAttr =
'font-family:"butcherman-caps"; src:url(data:font/opentype;base64,AAEA...);';
var root = parse(html, defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes[0].attribs.style).toBe(expectedAttr);
});
it('Should treat <xmp> tag content as text', function () {
var root = parse('<xmp><h2></xmp>', defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes[0].childNodes[0].data).toBe('<h2>');
});
it('Should correctly parse malformed numbered entities', function () {
var root = parse('<p>z&#</p>', defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes[0].childNodes[0].data).toBe('z&#');
});
it('Should correctly parse mismatched headings', function () {
var root = parse('<h2>Test</h3><div></div>', defaultOpts, false);
var childNodes = root.childNodes;
expect(childNodes.length).toBe(2);
expect(childNodes[0].tagName).toBe('h2');
expect(childNodes[1].tagName).toBe('div');
});
it('Should correctly parse tricky <pre> content', function () {
var root = parse(
'<pre>\nA <- factor(A, levels = c("c","a","b"))\n</pre>',
defaultOpts,
false
);
var childNodes = root.childNodes;
expect(childNodes.length).toBe(1);
expect(childNodes[0].tagName).toBe('pre');
expect(childNodes[0].childNodes[0].data).toBe(
'A <- factor(A, levels = c("c","a","b"))\n'
);
});
it('should pass the options for including the location info to parse5', function () {
var root = parse(
'<p>Hello</p>',
Object.assign({}, defaultOpts, { sourceCodeLocationInfo: true }),
false
);
var location = root.children[0].sourceCodeLocation;
expect(typeof location).toBe('object');
expect(location.endOffset).toBe(12);
});
});
});