public function testToStringReturnsValidHtml()
{
$this->helper->setName('keywords', 'foo bar', array('lang' => 'us_en', 'scheme' => 'foo', 'bogus' => 'unused'))->prependName('title', 'boo bah')->appendHttpEquiv('screen', 'projection');
$string = $this->helper->toString();
$metas = substr_count($string, '<meta ');
$this->assertEquals(3, $metas);
$metas = substr_count($string, '/>');
$this->assertEquals(3, $metas);
$metas = substr_count($string, 'name="');
$this->assertEquals(2, $metas);
$metas = substr_count($string, 'http-equiv="');
$this->assertEquals(1, $metas);
$this->assertContains('http-equiv="screen" content="projection"', $string);
$this->assertContains('name="keywords" content="foo bar"', $string);
$this->assertContains('lang="us_en"', $string);
$this->assertContains('scheme="foo"', $string);
$this->assertNotContains('bogus', $string);
$this->assertNotContains('unused', $string);
$this->assertContains('name="title" content="boo bah"', $string);
}
