1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* A test suite that runs WHATWG HTML parser tests.
* The tests are from html5lib.
*
* http://html5lib.googlecode.com/
*/
/**
* A few utility functions.
*/
function log(entry) {
}
function startsWith(s, s2) {
return s.indexOf(s2)==0;
}
function trimString(s) {
return(s.replace(/^\s+/,'').replace(/\s+$/,''));
}
/**
* Parses an individual testcase into an array containing the input
* string, a string representing the expected tree (DOM), and a list
* of error messages.
*
* @param A string containing a single testcase
*/
function parseTestcase(testcase) {
var lines = testcase.split("\n");
/* check that the first non-empty, non-comment line is #data */
for (var line of lines) {
if (!line || startsWith(line, "##")) {
continue;
}
if (line == "#data")
break;
log(lines);
throw "Unknown test format."
}
var input = [];
var output = [];
var errors = [];
var fragment = [];
var currentList = input;
for (var line of lines) {
if (startsWith(line, "##todo")) {
todo(false, line.substring(6));
continue;
}
if (!(startsWith(line, "#error") ||
startsWith(line, "#document") ||
startsWith(line, "#document-fragment") ||
startsWith(line, "#data"))) {
currentList.push(line);
} else if (line == "#errors") {
currentList = errors;
} else if (line == "#document") {
currentList = output;
} else if (line == "#document-fragment") {
currentList = fragment;
}
}
while (!output[output.length - 1]) {
output.pop(); // zap trailing blank lines
}
//logger.log(input.length, output.length, errors.length);
return [input.join("\n"), output.join("\n"), errors, fragment[0]];
}
/**
* A generator function that accepts a list of strings. Each list
* member corresponds to the contents of a ".dat" file from the
* html5lib test suite.
*
* @param The list of strings
*/
function test_parser(testlist) {
for (var testgroup of testlist) {
var tests = testgroup.split("#data\n");
tests = tests.filter(test => test).map(test => "#data\n" + test);
for (var test of tests) {
yield parseTestcase(test);
}
}
}
/**
* Transforms a DOM document to a string matching the format in
* the test cases.
*
* @param the DOM document
*/
function docToTestOutput(doc) {
var walker = doc.createTreeWalker(doc, NodeFilter.SHOW_ALL, null);
return addLevels(walker, "", "| ").slice(0,-1); // remove the last newline
}
/**
* Creates a walker for a fragment that skips over the root node.
*
* @param an element
*/
function createFragmentWalker(elt) {
return elt.ownerDocument.createTreeWalker(elt, NodeFilter.SHOW_ALL,
function (node) {
return elt == node ? NodeFilter.FILTER_SKIP : NodeFilter.FILTER_ACCEPT;
});
}
/**
* Transforms the descendants of an element to a string matching the format
* in the test cases.
*
* @param an element
*/
function fragmentToTestOutput(elt) {
var walker = createFragmentWalker(elt);
return addLevels(walker, "", "| ").slice(0,-1); // remove the last newline
}
function addLevels(walker, buf, indent) {
if(walker.firstChild()) {
do {
buf += indent;
switch (walker.currentNode.nodeType) {
case Node.ELEMENT_NODE:
buf += "<"
var ns = walker.currentNode.namespaceURI;
if ("http://www.w3.org/1998/Math/MathML" == ns) {
buf += "math ";
} else if ("http://www.w3.org/2000/svg" == ns) {
buf += "svg ";
} else if ("http://www.w3.org/1999/xhtml" != ns) {
buf += "otherns ";
}
buf += walker.currentNode.localName + ">";
if (walker.currentNode.hasAttributes()) {
var valuesByName = {};
var attrs = walker.currentNode.attributes;
for (var i = 0; i < attrs.length; ++i) {
var localName = attrs[i].localName;
var name;
var attrNs = attrs[i].namespaceURI;
if (null == attrNs) {
name = localName;
} else if ("http://www.w3.org/XML/1998/namespace" == attrNs) {
name = "xml " + localName;
} else if ("http://www.w3.org/1999/xlink" == attrNs) {
name = "xlink " + localName;
} else if ("http://www.w3.org/2000/xmlns/" == attrNs) {
name = "xmlns " + localName;
} else {
name = "otherns " + localName;
}
valuesByName[name] = attrs[i].value;
}
var keys = Object.keys(valuesByName).sort();
for (var i = 0; i < keys.length; ++i) {
buf += "\n" + indent + " " + keys[i] +
"=\"" + valuesByName[keys[i]] +"\"";
}
}
break;
case Node.DOCUMENT_TYPE_NODE:
buf += "<!DOCTYPE " + walker.currentNode.name;
if (walker.currentNode.publicId || walker.currentNode.systemId) {
buf += " \"";
buf += walker.currentNode.publicId;
buf += "\" \"";
buf += walker.currentNode.systemId;
buf += "\"";
}
buf += ">";
break;
case Node.COMMENT_NODE:
buf += "<!-- " + walker.currentNode.nodeValue + " -->";
break;
case Node.TEXT_NODE:
buf += "\"" + walker.currentNode.nodeValue + "\"";
break;
}
buf += "\n";
// In the case of template elements, children do not get inserted as
// children of the template element, instead they are inserted
// as children of the template content (which is a document fragment).
if (walker.currentNode instanceof HTMLTemplateElement) {
buf += indent + " content\n";
// Walk through the template content.
var templateWalker = createFragmentWalker(walker.currentNode.content);
buf = addLevels(templateWalker, buf, indent + " ");
}
buf = addLevels(walker, buf, indent + " ");
} while(walker.nextSibling());
walker.parentNode();
}
return buf;
}
|
