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psalm/tests/PluginTest.php
Bruce Weirdan 052d4f6217 Plugin loading (#855)
* add ability to load plugins by class names

- Plugins need to implement `__invoke(PluginFacade $psalm):void` method
- Plugins are enabled by adding `<pluginClass
class="Qualified\Class\Name"/>`
- `PluginFacade` provides a single point of contact with Psalm, so that
plugins cannot become coupled to Psalm internals

* added `psalm-plugin` cli tool to manage plugins

Available commands:
 `psalm-plugin list` - lists available and enabled plugins
 `psalm-plugin enable 'Plugin\Class\Name'` - enables plugin (modifies `psalm.xml`)
 `psalm-plugin disable 'Plugin\Class\Name'` - disables plugin (modifies `psalm.xml`)

Plugin installation:
 `composer install plugin-vendor/plugin-package-name`

Plugin authoring:
 Plugins are identified by package `type` field, which should contain
 `psalm-plugin` string.
 `extra.pluginClass` should refer to the name of the class implementing
 `__invoke(PluginFacade $psalm):void` function

Todo:
 - better config file search
 - better output for `psalm-plugin`
 - better formatting for modified xml file
 - composer skeleton project for plugins
 - ability to refer to plugins by package name (cli only)
 - composer plugin to (optionally) enable plugin upon installation
 - documentation on plugin installation and authoring
 - interfaces for plugin dependencies
 - interface for plugin entry point
 - migration path for legacy plugins

* documented previously undocumented plugin methods

* split legacy plugin registration into a wrapper class

also added `PluginApi` namespace and `RegistrationInterface`

* reuse psalm's config search algorithm

* enable/disable plugins by composer package name

* allow specifying alternative config file name

* whitelist PluginApi namespace

three times, but well, it works now

* interface for plugin entry points

* psalm-plugin as a symfony console app

* fixed errors found by psalm

* suppressed false positive UnusedMethods

* cs fix

* better psalm-plugin output

* don't leave empty `plugins` node to avoid old schema violation

* removed junk file that shouldn't be there

* cs fix

* fixed phpunit failure (constant redefinition)

* work around missing docblock in on symfony console

* php 7.0 compatibility

* allow `pluginClass` child elements as plugin configuration

* decouple console commands from undelying implementation

- introduce PluginListFactory
- add `PluginList::enable(string $class)` and `PluginList::disable(string $class)`

* PluginList tests

* ComposerLock test

* droppped debugging statement

* added part of console command tests

* added tests for EnableCommand

* added DisableCommand tests

* ignore unused args

* ConfigFile test

* disable travis cache in attempt to fix builds

* nah, that didn't work

* update for upstream changes

* rebase fixes

* namespaced `extra` entry for entry point

* s/PluginFacade/PluginRegistrationSocket/g

* Added $config parameter to PluginEntryPointInterface::__invoke()

* cs fixes

* entry point interface php7.0 compatibility

* cleaned up old cruft

- dropped todos I'm not going to pursues
- locked entry point to be a class implementing entry point interface

* fixed legacy plugins docs

* Added RegistrationInterface::registerHooksFromClass()

It mimics the way old plugins were registered in Psalm\Config, so
handler classes extending Psalm\Plugin should be fully compatible with
it.

Since Psalm\Plugin-style plugin registration was moved to
RegistrationSocket, LegacyPlugin now only load file-based plugins, so it
was renamed to FileBasedPluginAdapter.

* Converted EchoChecker plugin to composer-based format

- Its subfolder is registered as a local composer package in the root
composer.json, so it's directly installable with
	```
	composer require psalm/echo-checker-plugin
	```
- Migration is trivial: drop the plugin into a separate folder, then add
simple composer.json and the entry point class.

* Updated docs

* Don't reject hook handlers that inherit handling methods

* strip void return type in stub file
2018-11-10 23:23:36 -05:00

365 lines
11 KiB
PHP

<?php
namespace Psalm\Tests;
use Prophecy\Argument;
use Psalm\Checker\FileChecker;
use Psalm\Config;
use Psalm\Context;
use Psalm\Plugin;
use Psalm\PluginApi\PluginEntryPointInterface;
use Psalm\PluginApi\RegistrationInterface;
use SimpleXMLElement;
class PluginTest extends TestCase
{
/** @var TestConfig */
protected static $config;
/** @var \Psalm\Checker\ProjectChecker */
protected $project_checker;
/**
* @return void
*/
public static function setUpBeforeClass()
{
self::$config = new TestConfig();
if (!defined('PSALM_VERSION')) {
define('PSALM_VERSION', '2.0.0');
}
if (!defined('PHP_PARSER_VERSION')) {
define('PHP_PARSER_VERSION', '4.0.0');
}
}
/**
* @return void
*/
public function setUp()
{
FileChecker::clearCache();
$this->file_provider = new Provider\FakeFileProvider();
}
/**
* @param Config $config
*
* @return \Psalm\Checker\ProjectChecker
*/
private function getProjectCheckerWithConfig(Config $config)
{
return new \Psalm\Checker\ProjectChecker(
$config,
new \Psalm\Provider\Providers(
$this->file_provider,
new Provider\FakeParserCacheProvider()
)
);
}
/**
* @expectedException \Psalm\Exception\CodeException
* @expectedExceptionMessage InvalidClass
*
* @return void
*/
public function testStringCheckerPlugin()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/StringChecker.php" />
</plugins>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<?php
$a = "Psalm\Checker\ProjectChecker";'
);
$this->analyzeFile($file_path, new Context());
}
/**
* @expectedException \Psalm\Exception\CodeException
* @expectedExceptionMessage InvalidClass
*
* @return void
*/
public function testStringCheckerPluginWithClassConstant()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/StringChecker.php" />
</plugins>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<?php
class A {
const C = [
"foo" => "Psalm\Checker\ProjectChecker",
];
}'
);
$this->analyzeFile($file_path, new Context());
}
/**
* @expectedException \Psalm\Exception\CodeException
* @expectedExceptionMessage UndefinedMethod
*
* @return void
*/
public function testStringCheckerPluginWithClassConstantConcat()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/StringChecker.php" />
</plugins>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<?php
class A {
const C = [
"foo" => \Psalm\Checker\ProjectChecker::class . "::foo",
];
}'
);
$this->analyzeFile($file_path, new Context());
}
/**
* @return void
*/
public function testEchoCheckerPluginWithJustHtml()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/EchoChecker.php" />
</plugins>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<h3>This is a header</h3>'
);
$this->analyzeFile($file_path, new Context());
}
/**
* @expectedException \Psalm\Exception\CodeException
* @expectedExceptionMessage TypeCoercion
*
* @return void
*/
public function testEchoCheckerPluginWithUnescapedConcatenatedString()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/EchoChecker.php" />
</plugins>
<issueHandlers>
<UndefinedGlobalVariable errorLevel="suppress" />
<MixedArgument errorLevel="suppress" />
<MixedOperand errorLevel="suppress" />
</issueHandlers>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<?= $unsafe . "safeString" ?>'
);
$this->analyzeFile($file_path, new Context());
}
/**
* @expectedException \Psalm\Exception\CodeException
* @expectedExceptionMessage TypeCoercion
*
* @return void
*/
public function testEchoCheckerPluginWithUnescapedString()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/EchoChecker.php" />
</plugins>
<issueHandlers>
<UndefinedGlobalVariable errorLevel="suppress" />
<MixedArgument errorLevel="suppress" />
</issueHandlers>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<?= $unsafe ?>'
);
$this->analyzeFile($file_path, new Context());
}
/**
* @return void
*/
public function testEchoCheckerPluginWithEscapedString()
{
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<plugin filename="examples/EchoChecker.php" />
</plugins>
<issueHandlers>
<UndefinedGlobalVariable errorLevel="suppress" />
<MixedArgument errorLevel="suppress" />
</issueHandlers>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$file_path = getcwd() . '/src/somefile.php';
$this->addFile(
$file_path,
'<?php
/**
* @param mixed $s
* @return html-escaped-string
*/
function escapeHtml($s) : string {
if (!is_scalar($s)) {
throw new \UnexpectedValueException("bad value passed to escape");
}
/** @var html-escaped-string */
return htmlentities((string) $s);
}
?>
Some text
<?= escapeHtml($unsafe) ?>'
);
$this->analyzeFile($file_path, new Context());
}
/** @return void */
public function testInheritedHookHandlersAreCalled()
{
require_once __DIR__ . '/stubs/extending_plugin_entrypoint.php';
$this->project_checker = $this->getProjectCheckerWithConfig(
TestConfig::loadFromXML(
dirname(__DIR__) . DIRECTORY_SEPARATOR,
'<?xml version="1.0"?>
<psalm>
<projectFiles>
<directory name="src" />
</projectFiles>
<plugins>
<pluginClass class="ExtendingPluginRegistration" />
</plugins>
</psalm>'
)
);
$this->project_checker->config->initializePlugins($this->project_checker);
$this->assertContains(
'ExtendingPlugin',
$this->project_checker->config->after_function_checks
);
}
}