[Server] Reorganize server handlers and transport structure for better organization (#86)
* refactor: reorganize server handlers and transport structure * feat: move the test files to corresponding directories * fix: linter issues * fix: correct PHPDoc formatting and streamline handler imports * refactor: update import statement for ServerBuilder to Builder
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Kyrian Obikwelu
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1 changed files with 65 additions and 67 deletions
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<?php
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/*
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* This file is part of the official PHP MCP SDK.
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*
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* A collaboration between Symfony and the PHP Foundation.
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Mcp\Tests\Unit\Server\RequestHandler;
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use Mcp\Capability\Prompt\PromptGetterInterface;
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use Mcp\Exception\PromptGetException;
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use Mcp\Exception\PromptNotFoundException;
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use Mcp\Schema\Content\PromptMessage;
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use Mcp\Schema\Content\TextContent;
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use Mcp\Schema\Enum\Role;
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use Mcp\Schema\JsonRpc\Error;
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use Mcp\Schema\JsonRpc\Response;
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use Mcp\Schema\Request\GetPromptRequest;
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use Mcp\Schema\Result\GetPromptResult;
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use Mcp\Server\RequestHandler\GetPromptHandler;
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use Mcp\Server\Session\SessionInterface;
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use PHPUnit\Framework\MockObject\MockObject;
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use PHPUnit\Framework\TestCase;
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class GetPromptHandlerTest extends TestCase
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{
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private GetPromptHandler $handler;
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private PromptGetterInterface|MockObject $promptGetter;
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private SessionInterface|MockObject $session;
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protected function setUp(): void
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{
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$this->promptGetter = $this->createMock(PromptGetterInterface::class);
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$this->session = $this->createMock(SessionInterface::class);
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$this->handler = new GetPromptHandler($this->promptGetter);
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}
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public function testSupportsGetPromptRequest(): void
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{
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$request = $this->createGetPromptRequest('test_prompt');
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$this->assertTrue($this->handler->supports($request));
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}
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public function testHandleSuccessfulPromptGet(): void
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{
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$request = $this->createGetPromptRequest('greeting_prompt');
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$expectedMessages = [
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new PromptMessage(Role::User, new TextContent('Hello, how can I help you?')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A greeting prompt',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertEquals($request->getId(), $response->id);
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$this->assertSame($expectedResult, $response->result);
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}
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public function testHandlePromptGetWithArguments(): void
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{
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$arguments = [
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'name' => 'John',
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'context' => 'business meeting',
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'formality' => 'formal',
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];
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$request = $this->createGetPromptRequest('personalized_prompt', $arguments);
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$expectedMessages = [
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new PromptMessage(
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Role::User,
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new TextContent('Good morning, John. How may I assist you in your business meeting?'),
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),
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];
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$expectedResult = new GetPromptResult(
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description: 'A personalized greeting prompt',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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}
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public function testHandlePromptGetWithNullArguments(): void
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{
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$request = $this->createGetPromptRequest('simple_prompt', null);
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$expectedMessages = [
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new PromptMessage(Role::Assistant, new TextContent('I am ready to help.')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A simple prompt',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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}
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public function testHandlePromptGetWithEmptyArguments(): void
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{
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$request = $this->createGetPromptRequest('empty_args_prompt', []);
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$expectedMessages = [
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new PromptMessage(Role::User, new TextContent('Default message')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A prompt with empty arguments',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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}
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public function testHandlePromptGetWithMultipleMessages(): void
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{
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$request = $this->createGetPromptRequest('conversation_prompt');
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$expectedMessages = [
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new PromptMessage(Role::User, new TextContent('Hello')),
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new PromptMessage(Role::Assistant, new TextContent('Hi there! How can I help you today?')),
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new PromptMessage(Role::User, new TextContent('I need assistance with my project')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A conversation prompt',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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$this->assertCount(3, $response->result->messages);
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}
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public function testHandlePromptNotFoundExceptionReturnsError(): void
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{
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$request = $this->createGetPromptRequest('nonexistent_prompt');
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$exception = new PromptNotFoundException($request);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willThrowException($exception);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Error::class, $response);
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$this->assertEquals($request->getId(), $response->id);
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$this->assertEquals(Error::INTERNAL_ERROR, $response->code);
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$this->assertEquals('Error while handling prompt', $response->message);
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}
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public function testHandlePromptGetExceptionReturnsError(): void
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{
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$request = $this->createGetPromptRequest('failing_prompt');
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$exception = new PromptGetException($request, new \RuntimeException('Failed to get prompt'));
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willThrowException($exception);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Error::class, $response);
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$this->assertEquals($request->getId(), $response->id);
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$this->assertEquals(Error::INTERNAL_ERROR, $response->code);
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$this->assertEquals('Error while handling prompt', $response->message);
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}
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public function testHandlePromptGetWithComplexArguments(): void
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{
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$arguments = [
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'user_data' => [
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'name' => 'Alice',
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'preferences' => ['formal', 'concise'],
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'history' => [
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'last_interaction' => '2025-01-15',
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'topics' => ['technology', 'business'],
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],
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],
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'context' => 'technical consultation',
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'metadata' => [
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'session_id' => 'sess_123456',
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'timestamp' => 1705392000,
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],
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];
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$request = $this->createGetPromptRequest('complex_prompt', $arguments);
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$expectedMessages = [
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new PromptMessage(Role::User, new TextContent('Complex prompt generated with all parameters')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A complex prompt with nested arguments',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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}
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public function testHandlePromptGetWithSpecialCharacters(): void
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{
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$arguments = [
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'message' => 'Hello 世界! How are you? 😊',
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'special' => 'äöü ñ ß',
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'quotes' => 'Text with "double" and \'single\' quotes',
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];
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$request = $this->createGetPromptRequest('unicode_prompt', $arguments);
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$expectedMessages = [
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new PromptMessage(Role::User, new TextContent('Unicode message processed')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A prompt handling unicode characters',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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}
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public function testHandlePromptGetReturnsEmptyMessages(): void
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{
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$request = $this->createGetPromptRequest('empty_prompt');
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$expectedResult = new GetPromptResult(
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description: 'An empty prompt',
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messages: [],
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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$this->assertCount(0, $response->result->messages);
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}
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public function testHandlePromptGetWithLargeNumberOfArguments(): void
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{
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$arguments = [];
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for ($i = 0; $i < 100; ++$i) {
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$arguments["arg_{$i}"] = "value_{$i}";
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}
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$request = $this->createGetPromptRequest('many_args_prompt', $arguments);
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$expectedMessages = [
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new PromptMessage(Role::User, new TextContent('Processed 100 arguments')),
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];
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$expectedResult = new GetPromptResult(
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description: 'A prompt with many arguments',
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messages: $expectedMessages,
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);
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$this->promptGetter
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->expects($this->once())
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->method('get')
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->with($request)
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->willReturn($expectedResult);
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$response = $this->handler->handle($request, $this->session);
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$this->assertInstanceOf(Response::class, $response);
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$this->assertSame($expectedResult, $response->result);
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}
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/**
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* @param array<string, mixed>|null $arguments
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*/
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private function createGetPromptRequest(string $name, ?array $arguments = null): GetPromptRequest
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{
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return GetPromptRequest::fromArray([
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'jsonrpc' => '2.0',
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'method' => GetPromptRequest::getMethod(),
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'id' => 'test-request-'.uniqid(),
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'params' => [
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'name' => $name,
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'arguments' => $arguments,
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],
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]);
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}
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}
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