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[Capability] Suppress list-changed events during the initial registry load (#480)

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* [Capability] Suppress list-changed events during the initial registry load

* Shorten dispatch() comment to a one-liner

* Use multi-line docblock format for dispatch() comment
This commit is contained in:
Christopher Hertel 2026-08-25 00:45:00 +02:00 • committed by GitHub
commit 312c621417
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1 changed files with 66 additions and 8 deletions
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46
tests/Unit/Capability/RegistryTest.php
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@ -19,6 +19,7 @@ use Mcp\Capability\Registry\ResourceReference;
use Mcp\Capability\Registry\ResourceTemplateReference;
use Mcp\Capability\Registry\ToolReference;
use Mcp\Capability\RegistryInterface;
use Mcp\Event\ToolListChangedEvent;
use Mcp\Exception\PromptNotFoundException;
use Mcp\Exception\ResourceNotFoundException;
use Mcp\Exception\ToolNotFoundException;
@ -31,6 +32,7 @@ use Mcp\Schema\ResourceTemplate;
use Mcp\Schema\Tool;
use PHPUnit\Framework\MockObject\MockObject;
use PHPUnit\Framework\TestCase;
use Psr\EventDispatcher\EventDispatcherInterface;
use Psr\Log\LoggerInterface;
class RegistryTest extends TestCase
@ -722,6 +724,50 @@ class RegistryTest extends TestCase
$this->assertArrayHasKey('loaded', $registry->getTools()->references);
}
public function testListChangedEventsAreSuppressedDuringTheDeferredLoad(): void
{
$eventDispatcher = $this->createMock(EventDispatcherInterface::class);
$eventDispatcher->expects($this->never())->method('dispatch');
$loader = new class($this->createValidTool('loaded'), $this->createValidResource('file:///loaded'), $this->createValidResourceTemplate('file:///loaded/{id}'), $this->createValidPrompt('loaded_prompt')) implements LoaderInterface {
public function __construct(
private readonly Tool $tool,
private readonly ResourceDefinition $resource,
private readonly ResourceTemplate $template,
private readonly Prompt $prompt,
) {
}
public function load(RegistryInterface $registry): void
{
$registry->registerTool($this->tool, 'handler');
$registry->registerResource($this->resource, 'handler');
$registry->registerResourceTemplate($this->template, 'handler');
$registry->registerPrompt($this->prompt, 'handler');
}
};
$registry = new Registry($eventDispatcher, $this->logger, loader: $loader);
$this->assertTrue($registry->hasTools());
$this->assertTrue($registry->hasPrompts());
}
public function testListChangedEventsAreStillDispatchedForRuntimeRegistrations(): void
{
$eventDispatcher = $this->createMock(EventDispatcherInterface::class);
$eventDispatcher->expects($this->once())
->method('dispatch')
->with($this->isInstanceOf(ToolListChangedEvent::class))
->willReturnArgument(0);
$loader = $this->toolLoader($this->createValidTool('loaded'));
$registry = new Registry($eventDispatcher, $this->logger, loader: $loader);
$registry->load();
$registry->registerTool($this->createValidTool('runtime'), 'handler');
}
public function testLoadRunsTheConfiguredLoaderEagerly(): void
{
$loader = $this->createMock(LoaderInterface::class);