function test_omit_error()
{
$str = 'On January 29, 1737, Thomas Paine was born in Thetford, England. His father, a corseter, had grand visions for his son, but by the age of 12, Thomas had failed out of school. The young Paine began apprenticing for his father, but again, he failed.';
$myobj = new Text_LanguageDetect();
$result = $myobj->detectSimple($str);
$this->assertEquals('english', $result);
// omit all languages and you should get an error
$myobj->omitLanguages($myobj->getLanguages());
$result = $myobj->detectSimple($str);
$this->assertNull($result, gettype($result));
}
