/**
* Ensures that the filter follows expected behavior
*
* @return void
*/
public function testAllowWhiteSpace()
{
$this->_filter->setAllowWhiteSpace(true);
if (!self::$_unicodeEnabled) {
// POSIX named classes are not supported, use alternative a-zA-Z match
$valuesExpected = array(
'abc123' => 'abc',
'abc 123' => 'abc ',
'abcxyz' => 'abcxyz',
'' => '',
"\n" => "\n",
" \t " => " \t "
);
} if (self::$_meansEnglishAlphabet) {
//The Alphabet means english alphabet.
$valuesExpected = array(
'a B' => 'a B',
'zＹ x' => 'zx'
);
} else {
//The Alphabet means each language's alphabet.
$valuesExpected = array(
'abc123' => 'abc',
'abc 123' => 'abc ',
'abcxyz' => 'abcxyz',
'četně' => 'četně',
'لعربية' => 'لعربية',
'grzegżółka' => 'grzegżółka',
'België' => 'België',
'' => '',
"\n" => "\n",
" \t " => " \t "
);
}
$filter = $this->_filter;
foreach ($valuesExpected as $input => $output) {
$this->assertEquals(
$output,
$result = $filter($input),
"Expected '$input' to filter to '$output', but received '$result' instead"
);
}
}
/**
* Returns true if and only if $value contains only alphabetic characters
*
* @param string $value
* @return boolean
*/
public function isValid($value)
{
if (!is_string($value)) {
$this->error(self::INVALID);
return false;
}
$this->setValue($value);
if ('' === $value) {
$this->error(self::STRING_EMPTY);
return false;
}
if (null === self::$filter) {
self::$filter = new AlphaFilter();
}
self::$filter->setAllowWhiteSpace($this->allowWhiteSpace);
if ($value !== self::$filter->filter($value)) {
$this->error(self::NOT_ALPHA);
return false;
}
return true;
}
