/**
* Test if the `parse` method throws an exception if the closing parentheses is missing
* and the end of the stream is reached.
*
* @expectedException \com\mohiva\common\exceptions\SyntaxErrorException
*/
public function testParseThrowsExceptionIfEndOfStreamIsReached()
{
$tokenStream = new TokenStream();
$tokenStream->push(new Token(Lexer::T_OPEN_PARENTHESIS, '(', 1));
$tokenStream->push(new Token(Lexer::T_NUMBER, 100, 1));
$tokenStream->rewind();
$grammar = new Grammar();
$grammar->addOperand(new NumberOperand());
$operand = new ParenthesesOperand();
$operand->parse($grammar, $tokenStream);
}
/**
* Test if the parse method returns the `OperandNode` with the correct number.
*/
public function testParseReturnsNodeWithCorrectNumber()
{
$number = mt_rand(1, 100);
$tokenStream = new TokenStream();
$tokenStream->push(new Token(Lexer::T_NUMBER, $number, 1));
$tokenStream->rewind();
$operand = new NumberOperand();
$node = $operand->parse(new Grammar(), $tokenStream);
$this->assertSame($number, $node->evaluate());
}
/**
* Transform the input string into a token stream.
*
* @param string $input The string input to tokenize.
* @return TokenStream The resulting token stream.
*/
private function tokenize($input)
{
$stream = new TokenStream();
$stream->setSource($input);
$pattern = '/' . implode('|', $this->lexemes) . '/';
$flags = PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_OFFSET_CAPTURE;
$matches = preg_split($pattern, $input, -1, $flags);
foreach ($matches as $match) {
$value = strtolower($match[0]);
if ($value[0] == "'" || $value[0] == '"' || $value == 'true' || $value == 'false' || $value == 'null' || is_numeric($value)) {
$code = self::T_VALUE;
} else {
if (isset($this->constMap[$value])) {
$code = $this->constMap[$value];
} else {
if (preg_match('/[a-z0-9_]+/', $value)) {
$code = self::T_NAME;
} else {
if (ctype_space($value)) {
continue;
} else {
$code = self::T_NONE;
}
}
}
}
$stream->push(new AnnotationToken($code, $match[0], $match[1]));
}
return $stream;
}
/**
* Data provider which returns a TokenStream instance.
*
* @return array An array containing a TokenStream instance.
*/
public function tokenStreamProvider()
{
// user.name.split(" ").join("-")
$stream = new TokenStream();
$stream->push(new TestToken(self::T_NAME));
$stream->push(new TestToken(self::T_POINT));
$stream->push(new TestToken(self::T_NAME));
$stream->push(new TestToken(self::T_POINT));
$stream->push(new TestToken(self::T_NAME));
$stream->push(new TestToken(self::T_OPEN_PARENTHESIS));
$stream->push(new TestToken(self::T_VALUE));
$stream->push(new TestToken(self::T_CLOSE_PARENTHESIS));
$stream->push(new TestToken(self::T_POINT));
$stream->push(new TestToken(self::T_NAME));
$stream->push(new TestToken(self::T_OPEN_PARENTHESIS));
$stream->push(new TestToken(self::T_VALUE));
$stream->push(new TestToken(self::T_CLOSE_PARENTHESIS));
$stream->rewind();
return array(array($stream));
}
/**
* Transform the input string into a token stream.
*
* @param string $input The string input to tokenize.
* @return TokenStream The resulting token stream.
*/
private function tokenize($input)
{
$stream = new TokenStream();
$stream->setSource($input);
$pattern = '/' . implode('|', $this->lexemes) . '/';
$flags = PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE | PREG_SPLIT_OFFSET_CAPTURE;
$matches = preg_split($pattern, $input, -1, $flags);
foreach ($matches as $match) {
$value = strtolower($match[0]);
if (is_numeric($value)) {
$code = self::T_NUMBER;
} else {
if (isset($this->constTokenMap[$value])) {
$code = $this->constTokenMap[$value];
} else {
if (ctype_space($value)) {
continue;
} else {
$code = self::T_NONE;
}
}
}
$stream->push(new Token($code, $match[0], $match[1]));
}
return $stream;
}