87 lines
2.9 KiB
PHP
87 lines
2.9 KiB
PHP
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<?php
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namespace JMS\Parser\Tests;
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class AbstractParserTest extends \PHPUnit_Framework_TestCase
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{
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const T_UNKNOWN = 0;
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const T_INT = 1;
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const T_PLUS = 100;
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const T_MINUS = 101;
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private $parser;
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private $lexer;
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public function testParse()
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{
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$this->assertSame(2, $this->parser->parse('1 + 1'));
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$this->assertSame(5, $this->parser->parse('1 + 1 + 4 - 1'));
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}
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/**
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* @expectedException JMS\Parser\SyntaxErrorException
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* @expectedExceptionMessage Expected T_INT, but got end of input.
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*/
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public function testUnexpectedEnd()
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{
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$this->parser->parse('1 + ');
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}
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protected function setUp()
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{
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$this->lexer = $lexer = new \JMS\Parser\SimpleLexer(
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'/([0-9]+)|\s+|(.)/',
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array(0 => 'T_UNKNOWN', 1 => 'T_INT', 100 => 'T_PLUS', 101 => 'T_MINUS'),
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function($value) {
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if ('+' === $value) {
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return array(AbstractParserTest::T_PLUS, $value);
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}
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if ('-' === $value) {
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return array(AbstractParserTest::T_MINUS, $value);
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}
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// We would loose information on doubles here, but for this test it
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// does not matter anyway.
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if (is_numeric($value)) {
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return array(AbstractParserTest::T_INT, (integer) $value);
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}
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return AbstractParserTest::T_UNKNOWN;
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}
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);
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$this->parser = $parser = $this->getMockBuilder('JMS\Parser\AbstractParser')
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->setConstructorArgs(array($this->lexer))
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->getMockForAbstractClass();
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$match = function($type) use ($parser) {
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$ref = new \ReflectionMethod($parser, 'match');
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$ref->setAccessible(true);
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return $ref->invoke($parser, $type);
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};
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$this->parser->expects($this->any())
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->method('parseInternal')
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->will($this->returnCallback(function() use ($lexer, $match) {
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// Result :== Number ( ("+"|"-") Number )*
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$result = $match(AbstractParserTest::T_INT);
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while ($lexer->isNextAny(array(AbstractParserTest::T_PLUS, AbstractParserTest::T_MINUS))) {
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if ($lexer->isNext(AbstractParserTest::T_PLUS)) {
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$lexer->moveNext();
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$result += $match(AbstractParserTest::T_INT);
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} else if ($lexer->isNext(AbstractParserTest::T_MINUS)) {
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$lexer->moveNext();
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$result -= $match(AbstractParserTest::T_INT);
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} else {
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throw new \LogicException('Previous ifs were exhaustive.');
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}
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}
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return $result;
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}));
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}
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}
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