comparison vendor/nikic/php-parser/test/PhpParser/NodeFinderTest.php @ 13:5fb285c0d0e3

Update Drupal core to 8.4.7 via Composer. Security update; I *think* we've
been lucky to get away with this so far, as we don't support self-registration
which seems to be used by the so-called "drupalgeddon 2" attack that 8.4.5
was vulnerable to.

+<?php declare(strict_types=1);
+
+namespace PhpParser;
+
+use PhpParser\Node\Expr;
+use PHPUnit\Framework\TestCase;
+
+class NodeFinderTest extends 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; };
+        $this->assertNull($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));
+        $this->assertNull($finder->findFirstInstanceOf($stmts, Expr\BinaryOp\Mul::class));
+    }
+}