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diff --git a/vendor/psy/psysh/test/CodeCleaner/CalledClassPassTest.php b/vendor/psy/psysh/test/CodeCleaner/CalledClassPassTest.php
new file mode 100644
index 000000000..c80f257ac
--- /dev/null
+++ b/vendor/psy/psysh/test/CodeCleaner/CalledClassPassTest.php
@@ -0,0 +1,90 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Test\CodeCleaner;
+
+use Psy\CodeCleaner\CalledClassPass;
+
+class CalledClassPassTest extends CodeCleanerTestCase
+{
+    public function setUp()
+    {
+        $this->setPass(new CalledClassPass());
+    }
+
+    /**
+     * @dataProvider invalidStatements
+     * @expectedException \Psy\Exception\ErrorException
+     */
+    public function testProcessStatementFails($code)
+    {
+        $this->parseAndTraverse($code);
+    }
+
+    public function invalidStatements()
+    {
+        return [
+            ['get_class()'],
+            ['get_class(null)'],
+            ['get_called_class()'],
+            ['get_called_class(null)'],
+            ['function foo() { return get_class(); }'],
+            ['function foo() { return get_class(null); }'],
+            ['function foo() { return get_called_class(); }'],
+            ['function foo() { return get_called_class(null); }'],
+        ];
+    }
+
+    /**
+     * @dataProvider validStatements
+     */
+    public function testProcessStatementPasses($code)
+    {
+        $this->parseAndTraverse($code);
+        $this->assertTrue(true);
+    }
+
+    public function validStatements()
+    {
+        return [
+            ['get_class($foo)'],
+            ['get_class(bar())'],
+            ['get_called_class($foo)'],
+            ['get_called_class(bar())'],
+            ['function foo($bar) { return get_class($bar); }'],
+            ['function foo($bar) { return get_called_class($bar); }'],
+            ['class Foo { function bar() { return get_class(); } }'],
+            ['class Foo { function bar() { return get_class(null); } }'],
+            ['class Foo { function bar() { return get_called_class(); } }'],
+            ['class Foo { function bar() { return get_called_class(null); } }'],
+            ['$foo = function () {}; $foo()'],
+        ];
+    }
+
+    /**
+     * @dataProvider validTraitStatements
+     */
+    public function testProcessTraitStatementPasses($code)
+    {
+        $this->parseAndTraverse($code);
+        $this->assertTrue(true);
+    }
+
+    public function validTraitStatements()
+    {
+        return [
+            ['trait Foo { function bar() { return get_class(); } }'],
+            ['trait Foo { function bar() { return get_class(null); } }'],
+            ['trait Foo { function bar() { return get_called_class(); } }'],
+            ['trait Foo { function bar() { return get_called_class(null); } }'],
+        ];
+    }
+}