public function testGenerateText()
{
$builder = new SyntaxBuilder();
$builder->syntax("foo");
$ast = $builder->getAst();
$visitor = new TextSyntaxTree();
$ast->accept($visitor);
$this->assertEquals("[syntax]" . PHP_EOL, $visitor->getText());
$visitor = new TextSyntaxTree();
$builder->rule("rule-1");
$ast = $builder->getAst();
$ast->accept($visitor);
$this->assertEquals("[syntax]" . PHP_EOL . " +--[rule='rule-1']" . PHP_EOL, $visitor->getText());
$visitor = new TextSyntaxTree();
$builder->rule("rule-2");
$ast = $builder->getAst();
$ast->accept($visitor);
$this->assertEquals("[syntax]" . PHP_EOL . " +--[rule='rule-1']" . PHP_EOL . " +--[rule='rule-2']" . PHP_EOL, $visitor->getText());
$choice = $builder->clear()->rule("name")->choice();
$ast = $builder->getAst();
$visitor = new TextSyntaxTree();
$ast->accept($visitor);
$this->assertEquals("[syntax]" . PHP_EOL . " +--[rule='name']" . PHP_EOL . " +--[choice]" . PHP_EOL, $visitor->getText());
$choice->identifier("ident")->terminal("term")->end();
$ast = $builder->getAst();
$ast->accept($visitor);
$this->assertEquals("[syntax]" . PHP_EOL . " +--[rule='name']" . PHP_EOL . " +--[choice]" . PHP_EOL . " +--[identifier='ident']" . PHP_EOL . " +--[terminal='term']" . PHP_EOL, $visitor->getText());
$visitor = new TextSyntaxTree();
$builder->clear()->syntax("foobar")->rule("one")->choice()->end()->rule("two");
$ast = $builder->getAst();
$ast->accept($visitor);
$this->assertEquals("[syntax]" . PHP_EOL . " +--[rule='one']" . PHP_EOL . " | +--[choice]" . PHP_EOL . " +--[rule='two']" . PHP_EOL, $visitor->getText());
$fixtureDir = EBNF_TESTS_FIXTURS . DIRECTORY_SEPARATOR . "visitor" . DIRECTORY_SEPARATOR . "TextSyntaxTree";
$file = EBNF_TESTS_FIXTURS . "/rules_with_literals.ebnf";
$scanner = new Scanner(file_get_contents($file));
$parser = new Parser($scanner);
$parser->parse();
$ast = $parser->getAst();
$visitor = new TextSyntaxTree();
$ast->accept($visitor);
$this->assertEquals(file_get_contents($fixtureDir . DIRECTORY_SEPARATOR . "rules_with_literals"), $visitor->getText());
}
