Add tests for ::chmod().

Author: costdev

tests/phpunit/tests/filesystem/wpFilesystemDirect/chmod.php

@@ -0,0 +1,78 @@
+<?php
+/**
+ * Tests for the WP_Filesystem_Direct::chmod() method.
+ *
+ * @package WordPress
+ */
+
+require_once __DIR__ . '/base.php';
+
+/**
+ * @group admin
+ * @group filesystem
+ * @group filesystem-direct
+ *
+ * @covers WP_Filesystem_Direct::chmod
+ */
+class Tests_Filesystem_WpFilesystemDirect_Chmod extends WP_Filesystem_Direct_UnitTestCase {
+
+	/**
+	 * Tests that `WP_Filesystem_Direct::chmod()`
+	 * returns false for a path that does not exist.
+	 *
+	 * @ticket 57774
+	 *
+	 * @dataProvider data_paths_that_do_not_exist
+	 *
+	 * @param string $path The path.
+	 */
+	public function test_should_return_false( $path ) {
+		$this->assertFalse( self::$filesystem->chmod( $path ) );
+	}
+
+	/**
+	 * Tests that `WP_Filesystem_Direct::chmod()` should set
+	 * $mode when it is not passed.
+	 *
+	 * This test runs in a separate process so that it can define
+	 * constants without impacting other tests.
+	 *
+	 * This test does not preserve global state to prevent the exception
+	 * "Serialization of 'Closure' is not allowed." when running in a
+	 * separate process.
+	 *
+	 * @ticket 57774
+	 *
+	 * @dataProvider data_should_set_mode_when_not_passed
+	 *
+	 * @runInSeparateProcess
+	 * @preserveGlobalState disabled
+	 *
+	 * @param string $path The path.
+	 * @param string $type The type of path. "FILE" for file, "DIR" for directory.
+	 */
+	public function test_should_handle_set_mode_when_not_passed( $path, $type ) {
+		define( 'FS_CHMOD_' . $type, ( 'FILE' === $type ? 0644 : 0755 ) );
+
+		$this->assertTrue( self::$filesystem->chmod( self::$file_structure['test_dir']['path'] . $path, false ) );
+	}
+
+	/**
+	 * Data provider.
+	 *
+	 * @return array[]
+	 */
+	public function data_should_set_mode_when_not_passed() {
+		return array(
+			'a file'      => array(
+				'path' => 'a_file_that_exists.txt',
+				'type' => 'FILE',
+			),
+			'a directory' => array(
+				'path' => '',
+				'type' => 'DIR',
+			),
+		);
+	}
+
+}