TenantAtlas/tests/Unit/ScopeTagResolverTest.php

<?php

use App\Services\Graph\GraphException;
use App\Services\Graph\GraphLogger;
use App\Services\Graph\MicrosoftGraphClient;
use App\Services\Graph\ScopeTagResolver;
use Illuminate\Foundation\Testing\RefreshDatabase;
use Illuminate\Support\Facades\Cache;
use Tests\TestCase;

uses(TestCase::class, RefreshDatabase::class);

beforeEach(function () {
    Cache::flush();
    $this->graphClient = Mockery::mock(MicrosoftGraphClient::class);
    $this->logger = Mockery::mock(GraphLogger::class);
    $this->resolver = new ScopeTagResolver($this->graphClient, $this->logger);
});

test('resolves scope tags', function () {
    $scopeTagIds = ['0', '123', '456'];
    $allScopeTags = [
        ['id' => '0', 'displayName' => 'Default'],
        ['id' => '123', 'displayName' => 'HR-Admins'],
        ['id' => '456', 'displayName' => 'Finance-Admins'],
        ['id' => '789', 'displayName' => 'IT-Admins'],
    ];

    $this->graphClient
        ->shouldReceive('get')
        ->once()
        ->with('/deviceManagement/roleScopeTags', null, ['$select' => 'id,displayName'])
        ->andReturn(['value' => $allScopeTags]);

    $this->logger
        ->shouldReceive('logDebug')
        ->once()
        ->with('Fetched scope tags', ['count' => 4]);

    $result = $this->resolver->resolve($scopeTagIds);

    expect($result)->toHaveCount(3)
        ->and(array_column($result, 'id'))->toContain('0', '123', '456')
        ->and(array_column($result, 'id'))->not->toContain('789');
});

test('caches results', function () {
    $scopeTagIds = ['0', '123'];
    $allScopeTags = [
        ['id' => '0', 'displayName' => 'Default'],
        ['id' => '123', 'displayName' => 'HR-Admins'],
    ];

    // First call - should hit Graph API
    $this->graphClient
        ->shouldReceive('get')
        ->once()
        ->andReturn(['value' => $allScopeTags]);

    $this->logger
        ->shouldReceive('logDebug')
        ->once();

    $result1 = $this->resolver->resolve($scopeTagIds);

    // Second call with different IDs - should use cached data (no new Graph call)
    $result2 = $this->resolver->resolve(['0']);

    expect($result1)->toHaveCount(2)
        ->and($result2)->toHaveCount(1)
        ->and($result2[0]['id'])->toBe('0');
});

test('returns empty array for empty input', function () {
    $result = $this->resolver->resolve([]);

    expect($result)->toBe([]);
});

test('handles graph exception gracefully', function () {
    $scopeTagIds = ['0', '123'];

    $this->graphClient
        ->shouldReceive('get')
        ->once()
        ->andThrow(new GraphException('Graph API error', 500, ['request_id' => 'request-id-123']));

    $this->logger
        ->shouldReceive('logWarning')
        ->once()
        ->with('Failed to fetch scope tags', Mockery::on(function ($context) {
            return isset($context['context']['request_id']);
        }));

    $result = $this->resolver->resolve($scopeTagIds);

    expect($result)->toBe([]);
});

test('filters correctly when scope tag not in cache', function () {
    $scopeTagIds = ['999']; // ID that doesn't exist
    $allScopeTags = [
        ['id' => '0', 'displayName' => 'Default'],
        ['id' => '123', 'displayName' => 'HR-Admins'],
    ];

    $this->graphClient
        ->shouldReceive('get')
        ->once()
        ->andReturn(['value' => $allScopeTags]);

    $this->logger
        ->shouldReceive('logDebug')
        ->once();

    $result = $this->resolver->resolve($scopeTagIds);

    expect($result)->toBeEmpty();
});

test('handles response without value key', function () {
    $scopeTagIds = ['0', '123'];

    $this->graphClient
        ->shouldReceive('get')
        ->once()
        ->andReturn([]); // Missing 'value' key

    $this->logger
        ->shouldReceive('logDebug')
        ->once()
        ->with('Fetched scope tags', ['count' => 0]);

    $result = $this->resolver->resolve($scopeTagIds);

    expect($result)->toBeEmpty();
});