agent/php/tests/Feature/Mcp/Services/ToolDependencyServiceTest.php

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<?php
// SPDX-License-Identifier: EUPL-1.2
declare(strict_types=1);
use Core\Mod\Agentic\Mcp\Services\ToolDependencyService;
use Core\Mod\Agentic\Mcp\Services\ToolRegistry;
function mcpDependencyToolFixture(string $name, array $dependencies = []): array
{
return [
'name' => $name,
'description' => 'Fixture tool',
'dependencies' => $dependencies,
'handler' => static fn (array $arguments = [], array $context = []): array => [
'arguments' => $arguments,
'context' => $context,
'tool' => $name,
],
];
}
test('ToolDependencyService_validateDependencies_Good_walks_transitive_tool_graphs_before_execution', function (): void {
$registry = new ToolRegistry;
$registry->register(mcpDependencyToolFixture('session_start'));
$registry->register(mcpDependencyToolFixture('session_log', [
['type' => 'tool_called', 'tool' => 'session_start', 'message' => 'Start session first.'],
['type' => 'session_state', 'key' => 'session_id', 'message' => 'Session context required.'],
]));
$registry->register(mcpDependencyToolFixture('report_generate', [
['type' => 'tool', 'tool' => 'session_log', 'message' => 'Session logging must be available.'],
['type' => 'context_exists', 'key' => 'workspace_id', 'message' => 'Workspace context required.'],
]));
$service = new ToolDependencyService($registry, $this->app);
$service->recordToolCall('sess-1', 'session_start');
$service->validateDependencies('sess-1', 'report_generate', [
'workspace_id' => 'workspace-1',
'session_id' => 'sess-1',
], []);
expect($service->canExecute('report_generate', [
'workspace_id' => 'workspace-1',
'session_id' => 'sess-1',
], [], 'sess-1'))->toBeTrue();
});
test('ToolDependencyService_validateDependencies_Bad_reports_missing_context_requirements', function (): void {
$registry = new ToolRegistry;
$registry->register(mcpDependencyToolFixture('plan_list', [
['type' => 'context_exists', 'key' => 'workspace_id', 'message' => 'Workspace context required.'],
]));
$service = new ToolDependencyService($registry, $this->app);
$service->validateDependencies('plan_list', []);
})->throws(RuntimeException::class, 'Workspace context required.');
test('ToolDependencyService_validateDependencies_Ugly_detects_circular_tool_dependencies', function (): void {
$registry = new ToolRegistry;
$registry->register(mcpDependencyToolFixture('tool_alpha', [
['type' => 'tool', 'tool' => 'tool_bravo', 'message' => 'tool_bravo is required.'],
]));
$registry->register(mcpDependencyToolFixture('tool_bravo', [
['type' => 'tool', 'tool' => 'tool_alpha', 'message' => 'tool_alpha is required.'],
]));
$service = new ToolDependencyService($registry, $this->app);
$service->validateDependencies('tool_alpha', []);
})->throws(RuntimeException::class, 'Circular dependency detected while validating [tool_alpha].');