#data
<feed xmlns="http://www.w3.org/2005/Atom"><link rel="self" hreflang="en" href="http://example.org/1"/><id>tag:example.org,1</id><title/><updated>2005-07-31T12:29:29Z</updated></feed>
#errors

#data
<feed xmlns="http://www.w3.org/2005/Atom"><link rel="self" hreflang="!" href="http://example.org/1"/><id>tag:example.org,1</id><title/><updated>2005-07-31T12:29:29Z</updated></feed>
#errors
/feed/link/@hreflang;langtag:illegal;m
/feed/link/@hreflang;langtag:language:nosemantics;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><link rel="self" hreflang=" en " href="http://example.org/1"/><id>tag:example.org,1</id><title/><updated>2005-07-31T12:29:29Z</updated></feed>
#errors
/feed/link/@hreflang;langtag:illegal;m
/feed/link/@hreflang;langtag:language:nosemantics;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>05-07-31T12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:syntax error;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>12005-07-31T12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:syntax error;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31t12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:syntax error;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29:29z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:syntax error;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:syntax error;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29:29.0120Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-17-31T12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad month;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-32T12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad day;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-02-29T12:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad day;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T24:29:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad hour;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:69:29Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad minute;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29:69Z</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad second;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29:29+24:00</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad timezone hour;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>2005-07-31T12:29:29+02:60</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors
/feed/updated;datetime:bad timezone minute;m

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>1972-12-31T23:59:60+00:00</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors

#data
<feed xmlns="http://www.w3.org/2005/Atom"><updated>1973-01-01T00:59:60+00:00</updated><link rel="self" href="http://example.org/1"/><id>tag:example.org,1</id><title/></feed>
#errors

#data
<feed xmlns="http://www.w3.org/2005/Atom"><link title="" rel="self" href="http://example.org/1"/><updated>1973-01-01T00:59:60+00:00</updated><id>tag:example.org,1</id><title/></feed>
#errors

#data
<feed xmlns="http://www.w3.org/2005/Atom"><link title="a b c" rel="self" href="http://example.org/1"/><updated>1973-01-01T00:59:60+00:00</updated><id>tag:example.org,1</id><title/></feed>
#errors

#data
<!-- From <http://www.snellspace.com/public/ordertest.xml> -->
<feed xmlns="http://www.w3.org/2005/Atom">
  <id>tag:example.org,2006:atom/conformance/element_order</id>
  <title>Order Matters</title>
  <subtitle>Testing how feed readers handle the order of entry elements</subtitle>
  <updated>2006-01-26T09:16:00Z</updated>
  <author><name>James Snell</name></author>
  <link href="http://www.snellspace.com/wp/?p=255" />
  <link rel="self" href="http://www.snellspace.com/public/ordertest.xml" />
  <entry>
    <id>tag:example.org,2006:atom/conformance/element_order/1</id>
    <title>Simple order, nothing fancy</title>
    <summary>Simple ordering, nothing fancy</summary>
    <updated>2006-01-26T09:20:01Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
  </entry>
  <entry>
    <updated>2006-01-26T09:20:02Z</updated>  
    <summary>Same as the first, only mixed up a bit</summary>
    <id>tag:example.org,2006:atom/conformance/element_order/2</id>
    <link href="http://www.snellspace.com/public/alternate" />    
    <title>Same as the first, only mixed up a bit</title>
  </entry>
  <entry>
    <id>tag:example.org,2006:atom/conformance/element_order/3</id>
    <title>Multiple alt link elements, which one does your reader show?</title>
    <summary>Multiple alt link elements, which does your reader show?</summary>
    <updated>2006-01-26T09:20:03Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
    <link type="text/plain" href="http://www.snellspace.com/public/alternate2" />
  </entry>  
  <entry>
    <id>tag:example.org,2006:atom/conformance/element_order/4</id>
    <title>Multiple link elements, does your feed reader show the "alternate" correctly?</title>
    <summary>Multiple link elements, does your feed reader show the "alternate" correctly? (also checks to see if the reader is paying attention to link rel values)</summary>
    <updated>2006-01-26T09:20:04Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
    <link rel="related" href="http://www.snellspace.com/public/related" />
    <link rel="urn:foo" href="http://www.snellspace.com/public/foo" />
  </entry>
  <entry>
    <source>
      <id>tag:example.org,2006:atom/conformance/element_order</id>
      <title>Order Matters</title>
      <subtitle>Testing how feed readers handle the order of entry elements</subtitle>
      <updated>2006-01-26T09:16:00Z</updated>
      <author><name>James Snell</name></author>
      <link href="http://www.snellspace.com/wp/?p=255" />
      <link rel="self" href="http://www.snellspace.com/public/ordertest.xml" />
    </source>
    <id>tag:example.org,2006:atom/conformance/element_order/5</id>
    <title>Entry with a source first</title>
    <summary>Entry with a source first.. does your feed reader show the right title, updated, and alt link?</summary>
    <updated>2006-01-26T09:20:05Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
  </entry>
  <entry>
    <id>tag:example.org,2006:atom/conformance/element_order/6</id>
    <title>Entry with a source last</title>
    <summary>Entry with a source first.. does your feed reader show the right title, updated, and alt link?</summary>
    <updated>2006-01-26T09:20:06Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
    <source>
      <id>tag:example.org,2006:atom/conformance/element_order</id>
      <title>Order Matters</title>
      <subtitle>Testing how feed readers handle the order of entry elements</subtitle>
      <updated>2006-01-26T09:16:00Z</updated>
      <author><name>James Snell</name></author>
      <link href="http://www.snellspace.com/wp/?p=255" />
      <link rel="self" href="http://www.snellspace.com/public/ordertest.xml" />
    </source>
  </entry>
  <entry>
    <id>tag:example.org,2006:atom/conformance/element_order/7</id>
    <title>Entry with a source in the middle</title>
    <source>
      <id>tag:example.org,2006:atom/conformance/element_order</id>
      <title>Order Matters</title>
      <subtitle>Testing how feed readers handle the order of entry elements</subtitle>
      <updated>2006-01-26T09:16:00Z</updated>
      <author><name>James Snell</name></author>
      <link href="http://www.snellspace.com/wp/?p=255" />
      <link rel="self" href="http://www.snellspace.com/public/ordertest.xml" />
    </source>
    <summary>Entry with a source in the middle.. does your feed reader show the right id, title, updated, and alt link?</summary>
    <updated>2006-01-26T09:20:07Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
  </entry>
  <entry>
    <x:foo xmlns:x="urn:foo">
      <id>tag:example.org,2006:atom/conformance/element_order/9</id>
      <title>Something is wrong if you're seeing this</title>
      <updated>2006-01-26T09:20:00Z</updated>
    </x:foo>
    <id>tag:example.org,2006:atom/conformance/element_order/8</id>
    <title>Atom elements in an extension element</title>
    <summary>Atom elements in an extension element</summary>
    <updated>2006-01-26T09:20:08Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
  </entry>
  <entry>
    <id>tag:example.org,2006:atom/conformance/element_order/9</id>
    <title>Atom elements in an extension element</title>
    <summary>Atom elements in an extension element</summary>
    <updated>2006-01-26T09:20:09Z</updated>
    <link href="http://www.snellspace.com/public/alternate" />
    <x:foo xmlns:x="urn:foo">
      <id>tag:example.org,2006:atom/conformance/element_order/8</id>
      <title>Something is wrong if you're seeing this</title>
      <updated>2006-01-26T09:20:00Z</updated>
    </x:foo>
  </entry>  

</feed>
#errors
/feed/entry/foo;element not allowed;m
/feed/entry/foo;unknown element;u
/feed/entry/foo;element not allowed;m
/feed/entry/foo;unknown element;u

#data
<?xml version="1.0" encoding="iso-8859-1"?>
<!-- From <http://www.franklinmint.fm/2006/06/divtest.atom> -->
<feed xmlns="http://www.w3.org/2005/Atom">

  <title>hmm</title>
  <id>http://franklinmint.fm/2006/06/27/divtest</id>
  <link href="http://www.intertwingly.net/wiki/pie/XhtmlContentDivConformanceTests"/>
  <link rel="self" href="http://www.franklinmint.fm/2006/06/divtest.atom"/>
  <updated>2006-06-27T12:26:54+01:00</updated>
  <author>
    <email>hmm@example.com</email>
    <name>foo</name>
  </author>
  <generator version="1.1" uri="http://example.org">Hmm</generator>
  <author>
    <email>bar@example.com</email>
    <name>foo</name>
  </author>
  <rights type="xhtml">
    <div xmlns="http://www.w3.org/1999/xhtml"><i>test</i> rights</div>
  </rights>

  <entry>
    <title>test</title>
    <updated>2006-06-27T12:26:54+01:00</updated>
    <id>http://franklinmint.fm/2006/06/27/divtest.entry</id>
    <link rel="alternate" href="http://www.intertwingly.net/wiki/pie/XhtmlContentDivConformanceTests"/>
    <content type="xhtml">
      <div xmlns="http://www.w3.org/1999/xhtml"><b>test</b> content</div>
    </content>
  </entry>

</feed>
#errors
/feed/author/email;addr-spec not supported;u
/feed/author/email;addr-spec not supported;u
/feed/generator/@uri;URL:empty path;w