php-parser/test/PhpParser/NodeFinderTest.php
Nikita Popov 79afd56565 Add NodeFinder class
To simplify basic node finding operations.
2017-01-29 23:20:53 +01:00

58 lines
2.3 KiB
PHP

<?php
namespace PhpParser;
use PhpParser\Node\Expr;
class NodeFinderTest extends \PHPUnit_Framework_TestCase {
private function getStmtsAndVars() {
$assign = new Expr\Assign(new Expr\Variable('a'), new Expr\BinaryOp\Concat(
new Expr\Variable('b'), new Expr\Variable('c')
));
$stmts = [new Node\Stmt\Expression($assign)];
$vars = [$assign->var, $assign->expr->left, $assign->expr->right];
return [$stmts, $vars];
}
public function testFind() {
$finder = new NodeFinder;
list($stmts, $vars) = $this->getStmtsAndVars();
$varFilter = function(Node $node) {
return $node instanceof Expr\Variable;
};
$this->assertSame($vars, $finder->find($stmts, $varFilter));
$this->assertSame($vars, $finder->find($stmts[0], $varFilter));
$noneFilter = function () { return false; };
$this->assertSame([], $finder->find($stmts, $noneFilter));
}
public function testFindInstanceOf() {
$finder = new NodeFinder;
list($stmts, $vars) = $this->getStmtsAndVars();
$this->assertSame($vars, $finder->findInstanceOf($stmts, Expr\Variable::class));
$this->assertSame($vars, $finder->findInstanceOf($stmts[0], Expr\Variable::class));
$this->assertSame([], $finder->findInstanceOf($stmts, Expr\BinaryOp\Mul::class));
}
public function testFindFirst() {
$finder = new NodeFinder;
list($stmts, $vars) = $this->getStmtsAndVars();
$varFilter = function(Node $node) {
return $node instanceof Expr\Variable;
};
$this->assertSame($vars[0], $finder->findFirst($stmts, $varFilter));
$this->assertSame($vars[0], $finder->findFirst($stmts[0], $varFilter));
$noneFilter = function () { return false; };
$this->assertSame(null, $finder->findFirst($stmts, $noneFilter));
}
public function testFindFirstInstanceOf() {
$finder = new NodeFinder;
list($stmts, $vars) = $this->getStmtsAndVars();
$this->assertSame($vars[0], $finder->findFirstInstanceOf($stmts, Expr\Variable::class));
$this->assertSame($vars[0], $finder->findFirstInstanceOf($stmts[0], Expr\Variable::class));
$this->assertSame(null, $finder->findFirstInstanceOf($stmts, Expr\BinaryOp\Mul::class));
}
}