/**
* @param int $index
*
* @return mixed
*/
public function readAt($index)
{
if ($index > 0 && $this->lexer->getStream()->cursor() - $this->cursor < $index) {
$i = 0;
while (($token = $this->lexer->nextToken()) && $i < $index) {
$this->input[] = $token;
++$i;
}
}
return parent::readAt($index);
}
public function testItShouldReturnNextTokenWhenICallNextTokenMethod()
{
$stringStreamProphecy = $this->prophet->prophesize('RegexParser\\Lexer\\StringStream');
$input = array('^', '[', '_', 'a', '-', 'z', '0', '-', '9', '-', ']', '+', '(', '\\', '.', '\\', '\\');
$inputReadAt = array('.', '\\');
$output = array('T_HAT', 'T_LEFT_BRACKET', 'T_UNDERSCORE', 'T_CHAR', 'T_MINUS', 'T_CHAR', 'T_INTEGER', 'T_MINUS', 'T_INTEGER', 'T_MINUS', 'T_RIGHT_BRACKET', 'T_PLUS', 'T_LEFT_PARENTHESIS', null, 'T_CHAR', null, 'T_BACKSLASH');
$stringStreamProphecy->next()->will(new ReturnPromise($input));
$stringStreamProphecy->readAt(Argument::type('integer'))->will(new ReturnPromise($inputReadAt));
$lexer = new Lexer($stringStreamProphecy->reveal());
foreach ($input as $key => $char) {
if ($key === 13 || $key === 15) {
// For escaping
continue;
}
$token = $lexer->nextToken();
$this->assertInstanceOf('RegexParser\\Lexer\\TokenInterface', $token);
$this->assertEquals($char, $token->getValue());
$this->assertEquals($output[$key], $token->getName());
}
$stringStreamProphecy->next()->shouldHaveBeenCalledTimes(17);
// One call for each char and a final one which return false
$stringStreamProphecy->readAt(Argument::type('integer'))->shouldHaveBeenCalledTimes(2);
// For escaping
}
