Add Composer autoloading functions and PHPStan for testing

vendor/nikic/php-parser/test/PhpParser/Node/Stmt/ClassConstTest.php

@@ -0,0 +1,34 @@
+<?php declare(strict_types=1);
+
+namespace PhpParser\Node\Stmt;
+
+class ClassConstTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * @dataProvider provideModifiers
+     */
+    public function testModifiers($modifier) {
+        $node = new ClassConst(
+            [], // invalid
+            constant('PhpParser\Node\Stmt\Class_::MODIFIER_' . strtoupper($modifier))
+        );
+
+        $this->assertTrue($node->{'is' . $modifier}());
+    }
+
+    public function testNoModifiers() {
+        $node = new ClassConst([], 0);
+
+        $this->assertTrue($node->isPublic());
+        $this->assertFalse($node->isProtected());
+        $this->assertFalse($node->isPrivate());
+    }
+
+    public function provideModifiers() {
+        return [
+            ['public'],
+            ['protected'],
+            ['private'],
+        ];
+    }
+}