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vendor/psy/psysh/test/CodeCleaner/LegacyEmptyPassTest.php

@@ -0,0 +1,76 @@
+<?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\LegacyEmptyPass;
+
+class LegacyEmptyPassTest extends CodeCleanerTestCase
+{
+    public function setUp()
+    {
+        $this->setPass(new LegacyEmptyPass());
+    }
+
+    /**
+     * @dataProvider invalidStatements
+     * @expectedException \Psy\Exception\ParseErrorException
+     */
+    public function testProcessInvalidStatement($code)
+    {
+        $this->parseAndTraverse($code);
+    }
+
+    public function invalidStatements()
+    {
+        if (\version_compare(PHP_VERSION, '5.5', '>=')) {
+            return [
+                ['empty()'],
+            ];
+        }
+
+        return [
+            ['empty()'],
+            ['empty(null)'],
+            ['empty(PHP_EOL)'],
+            ['empty("wat")'],
+            ['empty(1.1)'],
+            ['empty(Foo::$bar)'],
+        ];
+    }
+
+    /**
+     * @dataProvider validStatements
+     */
+    public function testProcessValidStatement($code)
+    {
+        $this->parseAndTraverse($code);
+        $this->assertTrue(true);
+    }
+
+    public function validStatements()
+    {
+        if (\version_compare(PHP_VERSION, '5.5', '<')) {
+            return [
+                ['empty($foo)'],
+            ];
+        }
+
+        return [
+            ['empty($foo)'],
+            ['empty(null)'],
+            ['empty(PHP_EOL)'],
+            ['empty("wat")'],
+            ['empty(1.1)'],
+            ['empty(Foo::$bar)'],
+        ];
+    }
+}