Composer update

* updated Laravel to v5.6.38
* Added laravel tinker in dev dependencies

vendor/psy/psysh/test/Exception/BreakExceptionTest.php

@@ -0,0 +1,42 @@
+<?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\Exception;
+
+use Psy\Exception\BreakException;
+
+class BreakExceptionTest extends \PHPUnit\Framework\TestCase
+{
+    public function testInstance()
+    {
+        $e = new BreakException();
+
+        $this->assertInstanceOf('Psy\Exception\Exception', $e);
+        $this->assertInstanceOf('Psy\Exception\BreakException', $e);
+    }
+
+    public function testMessage()
+    {
+        $e = new BreakException('foo');
+
+        $this->assertContains('foo', $e->getMessage());
+        $this->assertSame('foo', $e->getRawMessage());
+    }
+
+    /**
+     * @expectedException \Psy\Exception\BreakException
+     * @expectedExceptionMessage Goodbye
+     */
+    public function testExitShell()
+    {
+        BreakException::exitShell();
+    }
+}