TenantAtlas/tests/Feature/Drift/DriftHasherTest.php

<?php

use App\Services\Drift\DriftHasher;

test('normalized hashing ignores volatile timestamps', function () {
    $hasher = app(DriftHasher::class);

    $a = [
        'id' => 'abc',
        'createdDateTime' => '2020-01-01T00:00:00Z',
        'lastModifiedDateTime' => '2020-01-02T00:00:00Z',
        'target' => ['groupId' => 'group-a'],
    ];

    $b = [
        'id' => 'abc',
        'createdDateTime' => '2025-01-01T00:00:00Z',
        'lastModifiedDateTime' => '2026-01-02T00:00:00Z',
        'target' => ['groupId' => 'group-a'],
    ];

    expect($hasher->hashNormalized($a))->toBe($hasher->hashNormalized($b));
});

test('normalized hashing is order-insensitive for lists', function () {
    $hasher = app(DriftHasher::class);

    $listA = [
        ['target' => ['groupId' => 'group-a']],
        ['target' => ['groupId' => 'group-b']],
    ];

    $listB = [
        ['target' => ['groupId' => 'group-b']],
        ['target' => ['groupId' => 'group-a']],
    ];

    expect($hasher->hashNormalized($listA))->toBe($hasher->hashNormalized($listB));
});