mirror of
https://github.com/twigphp/Twig.git
synced 2026-08-17 19:02:51 +00:00
Fabien Potencier
433 lines
15 KiB
PHP
433 lines
15 KiB
PHP
<?php
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namespace Twig\Tests;
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/*
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* This file is part of Twig.
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*
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* (c) Fabien Potencier
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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use PHPUnit\Framework\TestCase;
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use Twig\Environment;
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use Twig\Error\SyntaxError;
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use Twig\Lexer;
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use Twig\Loader\ArrayLoader;
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use Twig\Source;
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use Twig\Token;
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class LexerTest extends TestCase
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{
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public function testNameLabelForTag()
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{
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$template = '{% § %}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::BLOCK_START_TYPE);
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$this->assertSame('§', $stream->expect(Token::NAME_TYPE)->getValue());
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}
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public function testNameLabelForFunction()
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{
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$template = '{{ §() }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$this->assertSame('§', $stream->expect(Token::NAME_TYPE)->getValue());
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}
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public function testBracketsNesting()
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{
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$template = '{{ {"a":{"b":"c"}} }}';
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$this->assertEquals(2, $this->countToken($template, Token::PUNCTUATION_TYPE, '{'));
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$this->assertEquals(2, $this->countToken($template, Token::PUNCTUATION_TYPE, '}'));
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}
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public function testSpreadOperator()
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{
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$template = '{{ { a: "a", ...{ b: "b" } } }}';
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$this->assertEquals(1, $this->countToken($template, Token::SPREAD_TYPE, '...'));
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// sanity check on lexing after spread
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$this->assertEquals(2, $this->countToken($template, Token::PUNCTUATION_TYPE, '{'));
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$this->assertEquals(2, $this->countToken($template, Token::PUNCTUATION_TYPE, '}'));
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}
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protected function countToken($template, $type, $value = null)
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{
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$count = 0;
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while (!$stream->isEOF()) {
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$token = $stream->next();
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if ($type === $token->getType()) {
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if (null === $value || $value === $token->getValue()) {
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++$count;
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}
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}
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}
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return $count;
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}
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public function testLineDirective()
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{
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$template = "foo\n"
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."bar\n"
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."{% line 10 %}\n"
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."{{\n"
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."baz\n"
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."}}\n";
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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// foo\nbar\n
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$this->assertSame(1, $stream->expect(Token::TEXT_TYPE)->getLine());
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// \n (after {% line %})
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$this->assertSame(10, $stream->expect(Token::TEXT_TYPE)->getLine());
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// {{
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$this->assertSame(11, $stream->expect(Token::VAR_START_TYPE)->getLine());
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// baz
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$this->assertSame(12, $stream->expect(Token::NAME_TYPE)->getLine());
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}
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public function testLineDirectiveInline()
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{
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$template = "foo\n"
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."bar{% line 10 %}{{\n"
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."baz\n"
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."}}\n";
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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// foo\nbar
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$this->assertSame(1, $stream->expect(Token::TEXT_TYPE)->getLine());
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// {{
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$this->assertSame(10, $stream->expect(Token::VAR_START_TYPE)->getLine());
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// baz
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$this->assertSame(11, $stream->expect(Token::NAME_TYPE)->getLine());
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}
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public function testLongComments()
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{
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$template = '{# '.str_repeat('*', 100000).' #}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testLongVerbatim()
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{
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$template = '{% verbatim %}'.str_repeat('*', 100000).'{% endverbatim %}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testLongVar()
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{
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$template = '{{ '.str_repeat('x', 100000).' }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testLongBlock()
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{
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$template = '{% '.str_repeat('x', 100000).' %}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testBigNumbers()
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{
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$template = '{{ 922337203685477580700 }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->next();
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$node = $stream->next();
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$this->assertEquals('922337203685477580700', $node->getValue());
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}
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public function testStringWithEscapedDelimiter()
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{
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$tests = [
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"{{ 'foo \' bar' }}" => 'foo \' bar',
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'{{ "foo \" bar" }}' => 'foo " bar',
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];
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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foreach ($tests as $template => $expected) {
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, $expected);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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}
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public function testStringWithInterpolation()
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{
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$template = 'foo {{ "bar #{ baz + 1 }" }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::TEXT_TYPE, 'foo ');
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, 'bar ');
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$stream->expect(Token::INTERPOLATION_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'baz');
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$stream->expect(Token::OPERATOR_TYPE, '+');
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$stream->expect(Token::NUMBER_TYPE, '1');
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$stream->expect(Token::INTERPOLATION_END_TYPE);
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$stream->expect(Token::VAR_END_TYPE);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testStringWithEscapedInterpolation()
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{
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$template = '{{ "bar \#{baz+1}" }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, 'bar #{baz+1}');
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$stream->expect(Token::VAR_END_TYPE);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testStringWithHash()
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{
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$template = '{{ "bar # baz" }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, 'bar # baz');
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$stream->expect(Token::VAR_END_TYPE);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testStringWithUnterminatedInterpolation()
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{
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$this->expectException(SyntaxError::class);
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$this->expectExceptionMessage('Unclosed """');
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$template = '{{ "bar #{x" }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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}
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public function testStringWithNestedInterpolations()
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{
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$template = '{{ "bar #{ "foo#{bar}" }" }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, 'bar ');
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$stream->expect(Token::INTERPOLATION_START_TYPE);
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$stream->expect(Token::STRING_TYPE, 'foo');
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$stream->expect(Token::INTERPOLATION_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'bar');
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$stream->expect(Token::INTERPOLATION_END_TYPE);
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$stream->expect(Token::INTERPOLATION_END_TYPE);
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$stream->expect(Token::VAR_END_TYPE);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testStringWithNestedInterpolationsInBlock()
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{
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$template = '{% foo "bar #{ "foo#{bar}" }" %}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::BLOCK_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'foo');
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$stream->expect(Token::STRING_TYPE, 'bar ');
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$stream->expect(Token::INTERPOLATION_START_TYPE);
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$stream->expect(Token::STRING_TYPE, 'foo');
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$stream->expect(Token::INTERPOLATION_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'bar');
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$stream->expect(Token::INTERPOLATION_END_TYPE);
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$stream->expect(Token::INTERPOLATION_END_TYPE);
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$stream->expect(Token::BLOCK_END_TYPE);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testOperatorEndingWithALetterAtTheEndOfALine()
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{
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$template = "{{ 1 and\n0}}";
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::NUMBER_TYPE, 1);
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$stream->expect(Token::OPERATOR_TYPE, 'and');
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function testUnterminatedVariable()
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{
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$this->expectException(SyntaxError::class);
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$this->expectExceptionMessage('Unclosed "variable" in "index" at line 3');
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$template = '
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{{
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bar
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';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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}
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public function testUnterminatedBlock()
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{
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$this->expectException(SyntaxError::class);
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$this->expectExceptionMessage('Unclosed "block" in "index" at line 3');
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$template = '
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{%
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bar
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';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$lexer->tokenize(new Source($template, 'index'));
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}
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public function testOverridingSyntax()
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{
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$template = '[# comment #]{# variable #}/# if true #/true/# endif #/';
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$lexer = new Lexer(new Environment(new ArrayLoader()), [
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'tag_comment' => ['[#', '#]'],
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'tag_block' => ['/#', '#/'],
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'tag_variable' => ['{#', '#}'],
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]);
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'variable');
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$stream->expect(Token::VAR_END_TYPE);
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$stream->expect(Token::BLOCK_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'if');
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$stream->expect(Token::NAME_TYPE, 'true');
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$stream->expect(Token::BLOCK_END_TYPE);
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$stream->expect(Token::TEXT_TYPE, 'true');
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$stream->expect(Token::BLOCK_START_TYPE);
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$stream->expect(Token::NAME_TYPE, 'endif');
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$stream->expect(Token::BLOCK_END_TYPE);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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/**
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* @dataProvider getTemplateForErrorsAtTheEndOfTheStream
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*/
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public function testErrorsAtTheEndOfTheStream(string $template)
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{
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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set_error_handler(function () {
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$this->fail('Lexer should not emit warnings.');
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});
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try {
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$lexer->tokenize(new Source($template, 'index'));
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$this->addToAssertionCount(1);
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} finally {
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restore_error_handler();
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}
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}
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public function getTemplateForErrorsAtTheEndOfTheStream()
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{
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yield ['{{ ='];
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yield ['{{ ..'];
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}
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/**
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* @dataProvider getTemplateForStrings
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*/
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public function testStrings(string $expected)
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{
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$template = '{{ "'.$expected.'" }}';
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, $expected);
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$template = "{{ '".$expected."' }}";
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$lexer = new Lexer(new Environment(new ArrayLoader()));
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$stream = $lexer->tokenize(new Source($template, 'index'));
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$stream->expect(Token::VAR_START_TYPE);
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$stream->expect(Token::STRING_TYPE, $expected);
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// add a dummy assertion here to satisfy PHPUnit, the only thing we want to test is that the code above
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// can be executed without throwing any exceptions
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$this->addToAssertionCount(1);
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}
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public function getTemplateForStrings()
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{
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yield ["日本では、春になると桜の花が咲きます。多くの人々は、公園や川の近くに集まり、お花見を楽しみます。桜の花びらが風に舞い、まるで雪のように見える瞬間は、とても美しいです。"];
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yield ["في العالم العربي، يُعتبر الخط العربي أحد أجمل أشكال الفن. يُستخدم الخط في تزيين المساجد والكتب والمخطوطات القديمة. يتميز الخط العربي بجماله وتناسقه، ويُعتبر رمزًا للثقافة الإسلامية."];
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}
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}
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