TenantAtlas/tests/Feature/BaselineDriftEngine/ResolverTest.php

<?php

use App\Models\InventoryItem;
use App\Models\Policy;
use App\Models\PolicyVersion;
use App\Services\Baselines\BaselineSnapshotIdentity;
use App\Services\Baselines\CurrentStateHashResolver;
use App\Services\Drift\DriftHasher;
use App\Services\Drift\Normalizers\AssignmentsNormalizer;
use App\Services\Drift\Normalizers\ScopeTagsNormalizer;
use App\Services\Drift\Normalizers\SettingsNormalizer;
use Carbon\CarbonImmutable;

it('Baseline resolver prefers content evidence over meta evidence when available', function () {
    [, $tenant] = createUserWithTenant();

    $policy = Policy::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'policy_type' => 'settingsCatalogPolicy',
        'external_id' => 'policy-a',
        'platform' => 'windows10',
    ]);

    $policyVersion = PolicyVersion::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'policy_id' => (int) $policy->getKey(),
        'policy_type' => (string) $policy->policy_type,
        'platform' => (string) $policy->platform,
        'captured_at' => CarbonImmutable::parse('2026-03-01 10:00:00'),
        'snapshot' => [
            'settings' => [
                ['name' => 'settingA', 'value' => 1],
            ],
        ],
    ]);

    $inventory = InventoryItem::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'policy_type' => (string) $policy->policy_type,
        'external_id' => (string) $policy->external_id,
        'meta_jsonb' => [
            'odata_type' => '#microsoft.graph.deviceManagementConfigurationPolicy',
            'etag' => 'W/"meta-etag"',
            'scope_tag_ids' => [],
            'assignment_target_count' => 1,
        ],
        'last_seen_at' => CarbonImmutable::parse('2026-03-01 11:00:00'),
        'last_seen_operation_run_id' => null,
    ]);

    $expectedContentHash = app(DriftHasher::class)->hashNormalized([
        'settings' => app(SettingsNormalizer::class)->normalizeForDiff(
            is_array($policyVersion->snapshot) ? $policyVersion->snapshot : [],
            (string) $policyVersion->policy_type,
            is_string($policyVersion->platform) ? $policyVersion->platform : null,
        ),
        'assignments' => app(AssignmentsNormalizer::class)->normalizeForDiff([]),
        'scope_tag_ids' => app(ScopeTagsNormalizer::class)->normalizeIds([]),
    ]);

    $expectedMetaHash = app(BaselineSnapshotIdentity::class)->hashItemContent(
        policyType: (string) $inventory->policy_type,
        subjectExternalId: (string) $inventory->external_id,
        metaJsonb: is_array($inventory->meta_jsonb) ? $inventory->meta_jsonb : [],
    );

    $resolver = app(CurrentStateHashResolver::class);
    $result = $resolver->resolveForSubjects(
        tenant: $tenant,
        subjects: [
            ['policy_type' => (string) $policy->policy_type, 'subject_external_id' => (string) $policy->external_id],
        ],
        since: null,
        latestInventorySyncRunId: null,
    );

    expect($result)->toHaveKey((string) $policy->policy_type.'|'.(string) $policy->external_id);

    $evidence = $result[(string) $policy->policy_type.'|'.(string) $policy->external_id];
    expect($evidence)->not->toBeNull();
    expect($evidence?->hash)->toBe($expectedContentHash);
    expect($evidence?->hash)->not->toBe($expectedMetaHash);
    expect($evidence?->provenance()['fidelity'])->toBe('content');
    expect($evidence?->provenance()['source'])->toBe('policy_version');
});

it('Baseline resolver obeys since rule and falls back to meta evidence when content is too old', function () {
    [, $tenant] = createUserWithTenant();

    $policy = Policy::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'policy_type' => 'settingsCatalogPolicy',
        'external_id' => 'policy-b',
        'platform' => 'windows10',
    ]);

    PolicyVersion::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'policy_id' => (int) $policy->getKey(),
        'policy_type' => (string) $policy->policy_type,
        'platform' => (string) $policy->platform,
        'captured_at' => CarbonImmutable::parse('2026-03-01 10:00:00'),
        'snapshot' => [
            'settings' => [
                ['name' => 'settingB', 'value' => 2],
            ],
        ],
    ]);

    $inventory = InventoryItem::factory()->create([
        'tenant_id' => (int) $tenant->getKey(),
        'policy_type' => (string) $policy->policy_type,
        'external_id' => (string) $policy->external_id,
        'meta_jsonb' => [
            'odata_type' => '#microsoft.graph.deviceManagementConfigurationPolicy',
            'etag' => 'W/"meta-etag-b"',
            'scope_tag_ids' => [],
            'assignment_target_count' => 1,
        ],
        'last_seen_at' => CarbonImmutable::parse('2026-03-02 10:00:00'),
        'last_seen_operation_run_id' => null,
    ]);

    $expectedMetaHash = app(BaselineSnapshotIdentity::class)->hashItemContent(
        policyType: (string) $inventory->policy_type,
        subjectExternalId: (string) $inventory->external_id,
        metaJsonb: is_array($inventory->meta_jsonb) ? $inventory->meta_jsonb : [],
    );

    $resolver = app(CurrentStateHashResolver::class);
    $result = $resolver->resolveForSubjects(
        tenant: $tenant,
        subjects: [
            ['policy_type' => (string) $policy->policy_type, 'subject_external_id' => (string) $policy->external_id],
        ],
        since: CarbonImmutable::parse('2026-03-02 00:00:00'),
        latestInventorySyncRunId: null,
    );

    $evidence = $result[(string) $policy->policy_type.'|'.(string) $policy->external_id] ?? null;
    expect($evidence)->not->toBeNull();
    expect($evidence?->hash)->toBe($expectedMetaHash);
    expect($evidence?->provenance()['fidelity'])->toBe('meta');
    expect($evidence?->provenance()['source'])->toBe('inventory');
});