diff -r 000000000000 -r 6474c204b198 content/test/unit/test_xml_serializer.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/test/unit/test_xml_serializer.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,373 @@
+
+// The xml serializer uses the default line break of the plateform.
+// So we need to know the value of this default line break, in order
+// to build correctly the reference strings for tests.
+// This variable will contain this value.
+var LB;
+
+function run_test() {
+
+  if(("@mozilla.org/windows-registry-key;1" in C) || ("nsILocalFileOS2" in I))
+    LB = "\r\n";
+  else
+    LB = "\n";
+
+  for (var i = 0; i < tests.length && tests[i]; ++i) {
+    tests[i].call();
+  }
+}
+
+var tests = [
+  test1,
+  test2,
+  test3,
+  test4,
+  test5,
+  test6,
+  test7,
+  test8,
+  test9,
+  test10,
+  null
+];
+
+function testString(str) {
+  do_check_eq(roundtrip(str), str);
+}
+
+function test1() {
+  // Basic round-tripping which we expect to hand back the same text
+  // as we passed in (not strictly required for correctness in some of
+  // those cases, but best for readability of serializer output)
+  testString('<root/>');
+  testString('<root><child/></root>');
+  testString('<root xmlns=""/>');
+  testString('<root xml:lang="en"/>');
+  testString('<root xmlns="ns1"><child xmlns="ns2"/></root>')
+  testString('<root xmlns="ns1"><child xmlns=""/></root>')
+  testString('<a:root xmlns:a="ns1"><child/></a:root>')
+  testString('<a:root xmlns:a="ns1"><a:child/></a:root>')
+  testString('<a:root xmlns:a="ns1"><b:child xmlns:b="ns1"/></a:root>')
+  testString('<a:root xmlns:a="ns1"><a:child xmlns:a="ns2"/></a:root>')
+  testString('<a:root xmlns:a="ns1"><b:child xmlns:b="ns1" b:attr=""/></a:root>')
+}
+
+function test2() {
+  // Test setting of "xmlns" attribute in the null namespace
+
+  // XXXbz are these tests needed?  What should happen here?  These
+  // may be bogus.
+
+  // Setting random "xmlns" attribute
+  var doc = ParseXML('<root xmlns="ns1"/>');
+  doc.documentElement.setAttribute("xmlns", "ns2");
+  do_check_serialize(doc);
+}
+
+function test3() {
+  // Test basic appending of kids.  Again, we're making assumptions
+  // about how our serializer will serialize simple DOMs.
+  var doc = ParseXML('<root xmlns="ns1"/>');
+  var root = doc.documentElement;
+  var child = doc.createElementNS("ns2", "child");
+  root.appendChild(child);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc), 
+              '<root xmlns="ns1"><child xmlns="ns2"/></root>');
+  
+  doc = ParseXML('<root xmlns="ns1"/>');
+  root = doc.documentElement;
+  child = doc.createElementNS("ns2", "prefix:child");
+  root.appendChild(child);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc), 
+              '<root xmlns="ns1"><prefix:child xmlns:prefix="ns2"/></root>');
+  
+  doc = ParseXML('<prefix:root xmlns:prefix="ns1"/>');
+  root = doc.documentElement;
+  child = doc.createElementNS("ns2", "prefix:child");
+  root.appendChild(child);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc), 
+              '<prefix:root xmlns:prefix="ns1"><a0:child xmlns:a0="ns2"/>'+
+              '</prefix:root>');
+  
+}
+
+function test4() {
+  // setAttributeNS tests
+
+  var doc = ParseXML('<root xmlns="ns1"/>');
+  var root = doc.documentElement;
+  root.setAttributeNS("ns1", "prefix:local", "val");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="ns1" prefix:local="val" xmlns:prefix="ns1"/>');
+
+  doc = ParseXML('<prefix:root xmlns:prefix="ns1"/>');
+  root = doc.documentElement;
+  root.setAttributeNS("ns1", "local", "val");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<prefix:root xmlns:prefix="ns1" prefix:local="val"/>');
+
+  doc = ParseXML('<root xmlns="ns1"/>');
+  root = doc.documentElement;
+  root.setAttributeNS("ns2", "local", "val");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="ns1" a0:local="val" xmlns:a0="ns2"/>');
+
+  // Handling of prefix-generation for non-null-namespace attributes
+  // which have the same namespace as the current default namespace
+  // (bug 301260).
+  doc = ParseXML('<root xmlns="ns1"/>');
+  root = doc.documentElement;
+  root.setAttributeNS("ns1", "local", "val");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+                '<root xmlns="ns1" a0:local="val" xmlns:a0="ns1"/>');
+
+  // Tree-walking test
+  doc = ParseXML('<root xmlns="ns1" xmlns:a="ns2">'+
+                 '<child xmlns:b="ns2" xmlns:a="ns3">'+
+                 '<child2/></child></root>');
+  root = doc.documentElement;
+  // Have to QI here -- no classinfo flattening in xpcshell, apparently
+  var node = root.firstChild.firstChild.QueryInterface(nsIDOMElement);
+  node.setAttributeNS("ns4", "l1", "v1");
+  node.setAttributeNS("ns4", "p2:l2", "v2");
+  node.setAttributeNS("", "l3", "v3");
+  node.setAttributeNS("ns3", "l4", "v4");
+  node.setAttributeNS("ns3", "p5:l5", "v5");
+  node.setAttributeNS("ns3", "a:l6", "v6");
+  node.setAttributeNS("ns2", "l7", "v7");
+  node.setAttributeNS("ns2", "p8:l8", "v8");
+  node.setAttributeNS("ns2", "b:l9", "v9");
+  node.setAttributeNS("ns2", "a:l10", "v10");
+  node.setAttributeNS("ns1", "a:l11", "v11");
+  node.setAttributeNS("ns1", "b:l12", "v12");
+  node.setAttributeNS("ns1", "l13", "v13");
+  do_check_serialize(doc);
+  //  Note: we end up with "a2" as the prefix on "l11" and "l12" because we use
+  //  "a1" earlier, and discard it in favor of something we get off the
+  //  namespace stack, apparently
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="ns1" xmlns:a="ns2">'+
+              '<child xmlns:b="ns2" xmlns:a="ns3">'+
+              '<child2 a0:l1="v1" xmlns:a0="ns4"' +
+              ' a0:l2="v2"' +
+              ' l3="v3"' +
+              ' a:l4="v4"' +
+              ' a:l5="v5"' +
+              ' a:l6="v6"' +
+              ' b:l7="v7"' +
+              ' b:l8="v8"' +
+              ' b:l9="v9"' +
+              ' b:l10="v10"' +
+              ' a2:l11="v11" xmlns:a2="ns1"' +
+              ' a2:l12="v12"' +
+              ' a2:l13="v13"/></child></root>');
+}
+
+function test5() {
+  // Handling of kids in the null namespace when the default is a
+  // different namespace (bug 301260).
+  var doc = ParseXML('<root xmlns="ns1"/>')
+  var child = doc.createElement('child');
+  doc.documentElement.appendChild(child);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="ns1"><child xmlns=""/></root>');
+}
+
+function test6() {
+  // Handling of not using a namespace prefix (or default namespace!)
+  // that's not bound to our namespace in our scope (bug 301260).
+  var doc = ParseXML('<prefix:root xmlns:prefix="ns1"/>');
+  var root = doc.documentElement;
+  var child1 = doc.createElementNS("ns2", "prefix:child1");
+  var child2 = doc.createElementNS("ns1", "prefix:child2");
+  child1.appendChild(child2);
+  root.appendChild(child1);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<prefix:root xmlns:prefix="ns1"><a0:child1 xmlns:a0="ns2">'+
+              '<prefix:child2/></a0:child1></prefix:root>');
+
+  doc = ParseXML('<root xmlns="ns1"><prefix:child1 xmlns:prefix="ns2"/></root>');
+  root = doc.documentElement;
+  child1 = root.firstChild;
+  child2 = doc.createElementNS("ns1", "prefix:child2");
+  child1.appendChild(child2);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="ns1"><prefix:child1 xmlns:prefix="ns2">'+
+              '<child2/></prefix:child1></root>');
+
+  doc = ParseXML('<prefix:root xmlns:prefix="ns1">'+
+                 '<prefix:child1 xmlns:prefix="ns2"/></prefix:root>');
+  root = doc.documentElement;
+  child1 = root.firstChild;
+  child2 = doc.createElementNS("ns1", "prefix:child2");
+  child1.appendChild(child2);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<prefix:root xmlns:prefix="ns1"><prefix:child1 xmlns:prefix="ns2">'+
+              '<a0:child2 xmlns:a0="ns1"/></prefix:child1></prefix:root>');
+  
+
+  doc = ParseXML('<root xmlns="ns1"/>');
+  root = doc.documentElement;
+  child1 = doc.createElementNS("ns2", "child1");
+  child2 = doc.createElementNS("ns1", "child2");
+  child1.appendChild(child2);
+  root.appendChild(child1);
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+                '<root xmlns="ns1"><child1 xmlns="ns2"><child2 xmlns="ns1"/>'+
+                '</child1></root>');
+}
+
+function test7() {
+  // Handle xmlns attribute declaring a default namespace on a non-namespaced
+  // element (bug 326994).
+  var doc = ParseXML('<root xmlns=""/>')
+  var root = doc.documentElement;
+  root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
+                      "http://www.w3.org/1999/xhtml");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc), '<root/>');
+
+  doc = ParseXML('<root xmlns=""><child1/></root>')
+  root = doc.documentElement;
+  root.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
+                      "http://www.w3.org/1999/xhtml");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc), '<root><child1/></root>');
+
+  doc = ParseXML('<root xmlns="http://www.w3.org/1999/xhtml">' +
+                 '<child1 xmlns=""><child2/></child1></root>')
+  root = doc.documentElement;
+
+  // No interface flattening in xpcshell
+  var child1 = root.firstChild.QueryInterface(nsIDOMElement);
+  child1.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
+                        "http://www.w3.org/1999/xhtml");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="http://www.w3.org/1999/xhtml"><child1 xmlns="">' +
+              '<child2/></child1></root>');
+
+  doc = ParseXML('<root xmlns="http://www.w3.org/1999/xhtml">' +
+                 '<child1 xmlns="">' +
+                 '<child2 xmlns="http://www.w3.org/1999/xhtml"></child2>' +
+                 '</child1></root>')
+  root = doc.documentElement;
+  // No interface flattening in xpcshell
+  child1 = root.firstChild.QueryInterface(nsIDOMElement);
+  var child2 = child1.firstChild.QueryInterface(nsIDOMElement);
+  child1.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns",
+                        "http://www.w3.org/1999/xhtml");
+  child2.setAttributeNS("http://www.w3.org/2000/xmlns/", "xmlns", "");
+  do_check_serialize(doc);
+  do_check_eq(SerializeXML(doc),
+              '<root xmlns="http://www.w3.org/1999/xhtml"><child1 xmlns="">' +
+              '<a0:child2 xmlns:a0="http://www.w3.org/1999/xhtml" xmlns=""></a0:child2></child1></root>');
+}
+
+function test8() {
+  // Test behavior of serializing with a given charset.
+  var str1 = '<?xml version="1.0" encoding="ISO-8859-1"?>'+LB+'<root/>';
+  var str2 = '<?xml version="1.0" encoding="UTF8"?>'+LB+'<root/>';
+  var doc1 = ParseXML(str1);
+  var doc2 = ParseXML(str2);
+
+  var p = Pipe();
+  DOMSerializer().serializeToStream(doc1, p.outputStream, "ISO-8859-1");
+  p.outputStream.close();
+  do_check_eq(ScriptableInput(p).read(-1), str1);
+
+  p = Pipe();
+  DOMSerializer().serializeToStream(doc2, p.outputStream, "ISO-8859-1");
+  p.outputStream.close();
+  do_check_eq(ScriptableInput(p).read(-1), str1);
+
+  p = Pipe();
+  DOMSerializer().serializeToStream(doc1, p.outputStream, "UTF8");
+  p.outputStream.close();
+  do_check_eq(ScriptableInput(p).read(-1), str2);
+
+  p = Pipe();
+  DOMSerializer().serializeToStream(doc2, p.outputStream, "UTF8");
+  p.outputStream.close();
+  do_check_eq(ScriptableInput(p).read(-1), str2);
+}
+
+function test9() {
+  // Test behavior of serializing between given charsets, using
+  // ISO-8859-1-representable text.
+  var contents = '<root>' +
+                   '\u00BD + \u00BE == \u00BD\u00B2 + \u00BC + \u00BE' +
+                 '</root>';
+  var str1 = '<?xml version="1.0" encoding="ISO-8859-1"?>'+ LB + contents;
+  var str2 = '<?xml version="1.0" encoding="UTF8"?>'+ LB + contents;
+  var str3 = '<?xml version="1.0" encoding="UTF-16"?>'+ LB + contents;
+  var doc1 = ParseXML(str1);
+  var doc2 = ParseXML(str2);
+  var doc3 = ParseXML(str3);
+
+  checkSerialization(doc1, "ISO-8859-1", str1);
+  checkSerialization(doc2, "ISO-8859-1", str1);
+  checkSerialization(doc3, "ISO-8859-1", str1);
+
+  checkSerialization(doc1, "UTF8", str2);
+  checkSerialization(doc2, "UTF8", str2);
+  checkSerialization(doc3, "UTF8", str2);
+
+  checkSerialization(doc1, "UTF-16", str3);
+  checkSerialization(doc2, "UTF-16", str3);
+  checkSerialization(doc3, "UTF-16", str3);
+}
+
+function test10() {
+  // Test behavior of serializing between given charsets, using
+  // Unicode characters (XXX but only BMP ones because I don't know
+  // how to create one with non-BMP characters, either with JS strings
+  // or using DOM APIs).
+  var contents = '<root>' +
+                   'AZaz09 \u007F ' +               // U+000000 to U+00007F
+                   '\u0080 \u0398 \u03BB \u0725 ' + // U+000080 to U+0007FF
+                   '\u0964 \u0F5F \u20AC \uFFFB' +  // U+000800 to U+00FFFF
+                 '</root>';
+  var str1 = '<?xml version="1.0" encoding="UTF8"?>'+ LB + contents;
+  var str2 = '<?xml version="1.0" encoding="UTF-16"?>'+ LB + contents;
+  var doc1 = ParseXML(str1);
+  var doc2 = ParseXML(str2);
+
+  checkSerialization(doc1, "UTF8", str1);
+  checkSerialization(doc2, "UTF8", str1);
+
+  checkSerialization(doc1, "UTF-16", str2);
+  checkSerialization(doc2, "UTF-16", str2);
+}
+
+function checkSerialization(doc, toCharset, expectedString) {
+  var p = Pipe();
+  DOMSerializer().serializeToStream(doc, p.outputStream, toCharset);
+  p.outputStream.close();
+
+  var cin = C["@mozilla.org/intl/converter-input-stream;1"]
+             .createInstance(I.nsIConverterInputStream);
+  cin.init(p.inputStream, toCharset, 1024, 0x0);
+
+  // compare the first expectedString.length characters for equality
+  var outString = {};
+  var count = cin.readString(expectedString.length, outString);
+  do_check_true(count == expectedString.length);
+  do_check_true(outString.value == expectedString);
+
+  // if there's anything more in the stream, it's a bug
+  do_check_eq(0, cin.readString(1, outString));
+  do_check_eq(outString.value, "");
+}