From 02f9f90ef598bb09a2bbbe7cf7a6adeabf7b3158 Mon Sep 17 00:00:00 2001 From: borNfreee Date: Sat, 18 Jan 2020 00:20:28 +0300 Subject: [PATCH] Add tests & README.md --- .gitignore | 2 + README.md | 27 + composer.json | 10 +- composer.lock | 1537 ++++++++++++++++++++++++++++++ phpunit.xml.dist | 22 + tests/IncludeInterceptorTest.php | 423 ++++++++ 6 files changed, 2020 insertions(+), 1 deletion(-) create mode 100644 README.md create mode 100644 composer.lock create mode 100644 phpunit.xml.dist create mode 100644 tests/IncludeInterceptorTest.php diff --git a/.gitignore b/.gitignore index bb66ccb..6212411 100644 --- a/.gitignore +++ b/.gitignore @@ -2,3 +2,5 @@ /.idea /.php_cs.cache /vendor/ +.phpunit.result.cache +infection.log diff --git a/README.md b/README.md new file mode 100644 index 0000000..04b17a0 --- /dev/null +++ b/README.md @@ -0,0 +1,27 @@ +# Infection - Include Interceptor Stream Wrapper + +It's a [Stream Wrapper](https://www.php.net/manual/en/book.stream.php) that wraps a [`file://`](https://www.php.net/manual/en/wrappers.file.php) protocol and allows overriding content of any (auto) loaded file, including files autoloaded by Composer package manager. + +## How it works + +If you want to replace the content of the file whenever it's loaded (by executing `include '/path/to/file.php`, by calling `file_get_contents('/path/to/file.php')`, etc.), you need to register `IncludeInterceptor` _before_ loading original file: + +```php +use Infection\StreamWrapper\IncludeInterceptor; + +IncludeInterceptor::intercept('/path/to/original_file.php', '/path/to/replacement_file.php'); +IncludeInterceptor::enable(); +``` + +After enabling `IncludeInterceptor`, content of the `replacement_file.php` will be loaded instead of content of the `original_file.php`. + +## Use cases + +* This Stream Wrapper is used to replace the original file with the Mutant in [Infection](http://infection.github.io) Mutation Testing Framework +* The same approach is used in the [`dg/bypass-finals`](https://github.com/dg/bypass-finals/) package that allows to mock `final` classes, by overriding original content and removing `final` keyword in runtime + +## Infection - Mutation Testing Framework + +Please read documentation here: [infection.github.io](http://infection.github.io) + +Twitter: [@infection_php](http://twitter.com/infection_php) diff --git a/composer.json b/composer.json index 889563f..5bda73a 100644 --- a/composer.json +++ b/composer.json @@ -14,11 +14,19 @@ "Infection\\StreamWrapper\\": "src/" } }, + "autoload-dev": { + "psr-4": { + "Infection\\Tests\\StreamWrapper\\": "tests/" + } + }, "config": { "platform": { "php": "7.2.9" }, "sort-packages": true }, - "require": {} + "require": {}, + "require-dev": { + "phpunit/phpunit": "^8.5" + } } diff --git a/composer.lock b/composer.lock new file mode 100644 index 0000000..0e264ce --- /dev/null +++ b/composer.lock @@ -0,0 +1,1537 @@ +{ + "_readme": [ + "This file locks the dependencies of your project to 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"shasum": "" + }, + "require": { + "php": "^5.3.3 || ^7.0", + "symfony/polyfill-ctype": "^1.8" + }, + "conflict": { + "vimeo/psalm": "<3.6.0" + }, + "require-dev": { + "phpunit/phpunit": "^4.8.36 || ^7.5.13" + }, + "type": "library", + "autoload": { + "psr-4": { + "Webmozart\\Assert\\": "src/" + } + }, + "notification-url": "https://packagist.org/downloads/", + "license": [ + "MIT" + ], + "authors": [ + { + "name": "Bernhard Schussek", + "email": "bschussek@gmail.com" + } + ], + "description": "Assertions to validate method input/output with nice error messages.", + "keywords": [ + "assert", + "check", + "validate" + ], + "time": "2019-11-24T13:36:37+00:00" + } + ], + "aliases": [], + "minimum-stability": "stable", + "stability-flags": [], + "prefer-stable": false, + "prefer-lowest": false, + "platform": [], + "platform-dev": [], + "platform-overrides": { + "php": "7.2.9" + } +} diff --git a/phpunit.xml.dist b/phpunit.xml.dist new file mode 100644 index 0000000..e60689f --- /dev/null +++ b/phpunit.xml.dist @@ -0,0 +1,22 @@ + + + + + + tests + + + + + + src + + + + diff --git a/tests/IncludeInterceptorTest.php b/tests/IncludeInterceptorTest.php new file mode 100644 index 0000000..92d94e6 --- /dev/null +++ b/tests/IncludeInterceptorTest.php @@ -0,0 +1,423 @@ +expectException(RuntimeException::class); + IncludeInterceptor::enable(); + } + + public function test_it_throws_an_exception_if_target_not_exists(): void + { + $this->expectException(InvalidArgumentException::class); + IncludeInterceptor::intercept('', ''); + } + + public function test_it_throws_an_exception_if_destination_not_exists(): void + { + $this->expectException(InvalidArgumentException::class); + IncludeInterceptor::intercept(self::$files[1], ''); + } + + public function test_it_not_intercepts_when_not_included(): void + { + $before = file_get_contents(self::$files[1]); + // Sanity check + $this->assertStringContainsString('1', $before); + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + $after = file_get_contents(self::$files[1]); + + IncludeInterceptor::disable(); + + $this->assertSame($before, $after); + } + + public function test_it_intercepts_file_with_another(): void + { + $before = include self::$files[1]; + $this->assertSame(1, $before); + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + $after = include self::$files[1]; + + IncludeInterceptor::disable(); + + $expected = include self::$files[2]; + + $this->assertNotSame($before, $after); + $this->assertSame($after, $expected); + } + + public function test_it_does_not_intercept_file_where_should_not(): void + { + $before = include self::$files[3]; + $this->assertSame(3, $before); + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + $after = include self::$files[3]; + + IncludeInterceptor::disable(); + + $this->assertSame($before, $after); + } + + public function test_passthrough_file_methods_pass(): void + { + if (PHP_SAPI === 'phpdbg') { + $this->markTestSkipped('Running this test on PHPDBG has issues with FD_SETSIZE. Consider removing this if that issue has been fixed.'); + } + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + /* + * PHP will give a warning if our stream wrapper + * cannot handle any of these + */ + + $tempnam = tempnam('', basename(__FILE__, 'php')); + + $fp = fopen($tempnam, 'w+'); + flock($fp, LOCK_EX); + fwrite($fp, 'test'); + fseek($fp, 0); + $this->assertSame('test', fread($fp, 4)); + ftruncate($fp, 0); + $streams = [$fp]; + stream_select($streams, $streams, $streams, 0); + stream_set_blocking($fp, false); + stream_set_timeout($fp, 0); + stream_set_write_buffer($fp, 0); + stream_set_read_buffer($fp, 0); + fclose($fp); + + $this->assertSame(0, stat($tempnam)['size']); + touch($tempnam); + touch($tempnam, time()); + chown($tempnam, stat($tempnam)['uid']); + chgrp($tempnam, stat($tempnam)['gid']); + chmod($tempnam, stat($tempnam)['mode']); + + $newname = tempnam('', basename(__FILE__, 'php')); + rename($tempnam, $newname); + unlink($newname); + + IncludeInterceptor::disable(); + } + + public function test_passthrough_dir_methods_pass(): void + { + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + /* + * PHP will give a warning if our stream wrapper + * cannot handle any of these + */ + + $this->assertGreaterThan(0, count(glob(__DIR__ . '/*'))); + + $tempnam = tempnam('', basename(__FILE__, 'php')); + unlink($tempnam); + + mkdir($tempnam); + + $fp = opendir($tempnam); + readdir($fp); + rewinddir($fp); + closedir($fp); + + $newname = tempnam('', basename(__FILE__, 'php')); + unlink($newname); + + rename($tempnam, $newname); + rmdir($newname); + + IncludeInterceptor::disable(); + } + + public function test_it_re_enables_interceptor_after_file_not_found_with_fopen(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + fopen('file-does-not-exist.txt', 'r'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_file_not_found_with_include(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + include 'file-does-not-exist.txt'; + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_directory_not_found_with_opendir(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + opendir('dir-does-not-exist'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_directory_already_exist_with_mkdir(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + mkdir(__DIR__); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_file_not_found_with_rename(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + rename('file-does-not-exist.txt', 'something-else.txt'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_directory_not_found_with_rmdir(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + rmdir('dir-does-not-exist'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + /** + * @requires OSFAMILY Linux + * @requires OSFAMILY Darwin + */ + public function test_it_re_enables_interceptor_after_file_not_found_with_stream_metadata(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + touch('/'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_file_not_found_with_unlink(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + unlink('file-does-not-exist.txt'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } + + public function test_it_re_enables_interceptor_after_file_not_found_with_url_stat(): void + { + $expected = include self::$files[2]; + + IncludeInterceptor::intercept(self::$files[1], self::$files[2]); + IncludeInterceptor::enable(); + + try { + copy('file-does-not-exist.txt', 'somewhere-else.txt'); + } catch (Warning $e) { + $after = include self::$files[1]; + + $this->assertSame($after, $expected); + + return; + } + + $this->fail('Badly set up test, exception was not thrown'); + } +}