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<?php
namespace AthosHun\HTMLFilter;
class HTMLFilterTest extends \PHPUnit_Framework_TestCase
{
private $filter;
private $filter_config;
private $mb_substitute_character;
public function setUp()
{
$this->filter_config = new Configuration();
$this->filter = new HTMLFilter();
$this->mbstring_substitute_character = ini_get(
"mbstring.substitute_character"
);
ini_set("mbstring.substitute_character", "none");
}
public function tearDown()
{
ini_set(
"mbstring.substitute_character",
$this->mbstring_substitute_character
);
}
public function testPlainTextWithoutAnyHtmlRemainsUnchanged()
{
$this->assertFilteredHTML("", "");
$this->assertFilteredHTML("hello", "hello");
}
private function assertFilteredHTML($expected_html, $html)
{
$this->assertSame(
$expected_html,
$this->filter->filter($this->filter_config, $html)
);
}
public function testDisallowedTagsAreRemoved()
{
$this->assertFilteredHTML("lorem ipsum", "lorem <a>ipsum</a>");
}
public function testAllowedTagsAreKept()
{
$this->filter_config->allowTag("a");
$html = "lorem <a>ipsum</a>";
$this->assertFilteredHTML($html, $html);
}
public function testDisallowedAttributesAreRemoved()
{
$this->filter_config->allowTag("a");
$this->assertFilteredHTML(
"lorem <a>ipsum</a>",
"lorem <a href=\"hello\">ipsum</a>"
);
}
public function testAllowedAttributesAreKept()
{
$this->filter_config->allowTag("a")
->allowAttribute("a", "href");
$html = "lorem <a href=\"hello\">ipsum</a>";
$this->assertFilteredHTML($html, $html);
}
public function testAllowedAttributesNotMatchingARegexpAreRemoved()
{
$this->filter_config->allowAttribute("a", "href", "/^hello\$/");
$this->assertFilteredHTML(
"lorem <a>ipsum</a>",
"lorem <a href=\"world\">ipsum</a>"
);
}
public function testHTMLEntitiesAreLeftUnchanged()
{
$this->filter_config->allowAttribute("a", "href");
$quoted_special_chars_attr = "&lt;&quot;&amp;&gt;'";
$quoted_special_chars_text = "&lt;\"&amp;&gt;'";
$quoted_html = "<a href=\"$quoted_special_chars_attr\">"
. $quoted_special_chars_text
. "</a>";
$this->assertFilteredHTML($quoted_html, $quoted_html);
}
public function testNodesAreCopiedRecursively()
{
$this->filter_config->allowTag("p")
->allowTag("b")
->allowAttribute("a", "href", "/^hello\$/");
$this->assertFilteredHTML(
"Lorem <p><b><a>ipsum</a> dolor sit</b> amet</p>",
"Lorem <p><b><a>ipsum</a> <em>dolor</em> <em>sit</em></b> amet</p>"
);
}
public function testHtmlCommentsArePreserved()
{
$html = "Lorem <!-- <Hello> --> Ipsum";
$this->assertFilteredHTML($html, $html);
}
public function testInvalidMarkupIsIgnored()
{
$this->assertFilteredHTML(
"hello world",
"<nosuchtag>hello world</x></nosuchtag>"
);
}
public function testWorksWithCjkCharacters()
{
$zh = "格萊美紅毯大戰誰是贏家";
$jp = "日本語です。";
$ko = "빛나리의 타잔 주제가";
$this->assertFilteredHTML(
"$zh$jp$ko",
"<p>$zh</p><p>$jp</p><p>$ko</p>"
);
}
public function testIgnoresInvalidUtf8()
{
$this->filter_config->allowTag("p");
$this->assertFilteredHTML(
"prefix <p> onclick=alert(42)&gt;infix\n\nsuffix</p>",
"prefix <p\xe6> onclick=alert(42)>infix\xe6\xff\n\nsuffix"
);
}
}