TenantAtlas/tests/Feature/PermissionPosture/PostureScoreCalculatorTest.php

<?php

declare(strict_types=1);

use App\Services\PermissionPosture\PostureScoreCalculator;

it('returns 100 when all permissions are granted', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'granted',
        'permissions' => [
            ['key' => 'Perm.A', 'type' => 'application', 'status' => 'granted', 'features' => ['a']],
            ['key' => 'Perm.B', 'type' => 'application', 'status' => 'granted', 'features' => ['b']],
        ],
    ]);

    expect($result)->toBe(100);
});

it('returns 86 for 12 of 14 granted', function (): void {
    $calculator = new PostureScoreCalculator;

    $permissions = [];
    for ($i = 0; $i < 12; $i++) {
        $permissions[] = ['key' => "Perm.$i", 'type' => 'application', 'status' => 'granted', 'features' => []];
    }
    for ($i = 12; $i < 14; $i++) {
        $permissions[] = ['key' => "Perm.$i", 'type' => 'application', 'status' => 'missing', 'features' => []];
    }

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => $permissions,
    ]);

    expect($result)->toBe(86);
});

it('returns 0 when all permissions are missing', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => [
            ['key' => 'Perm.A', 'type' => 'application', 'status' => 'missing', 'features' => ['a']],
            ['key' => 'Perm.B', 'type' => 'application', 'status' => 'missing', 'features' => ['b']],
        ],
    ]);

    expect($result)->toBe(0);
});

it('returns 100 when 0 permissions required', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'granted',
        'permissions' => [],
    ]);

    expect($result)->toBe(100);
});

it('returns 100 for single granted permission', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'granted',
        'permissions' => [
            ['key' => 'Perm.A', 'type' => 'application', 'status' => 'granted', 'features' => ['a']],
        ],
    ]);

    expect($result)->toBe(100);
});

it('returns 0 for single missing permission', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => [
            ['key' => 'Perm.A', 'type' => 'application', 'status' => 'missing', 'features' => ['a']],
        ],
    ]);

    expect($result)->toBe(0);
});

it('rounds correctly for 1 of 3 granted (33)', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => [
            ['key' => 'A', 'type' => 'application', 'status' => 'granted', 'features' => []],
            ['key' => 'B', 'type' => 'application', 'status' => 'missing', 'features' => []],
            ['key' => 'C', 'type' => 'application', 'status' => 'missing', 'features' => []],
        ],
    ]);

    expect($result)->toBe(33);
});

it('rounds correctly for 2 of 3 granted (67)', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => [
            ['key' => 'A', 'type' => 'application', 'status' => 'granted', 'features' => []],
            ['key' => 'B', 'type' => 'application', 'status' => 'granted', 'features' => []],
            ['key' => 'C', 'type' => 'application', 'status' => 'missing', 'features' => []],
        ],
    ]);

    expect($result)->toBe(67);
});

it('returns integer not float', function (): void {
    $calculator = new PostureScoreCalculator;

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => [
            ['key' => 'A', 'type' => 'application', 'status' => 'granted', 'features' => []],
            ['key' => 'B', 'type' => 'application', 'status' => 'missing', 'features' => []],
            ['key' => 'C', 'type' => 'application', 'status' => 'missing', 'features' => []],
        ],
    ]);

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

it('returns 50 for 7 of 14 granted', function (): void {
    $calculator = new PostureScoreCalculator;

    $permissions = [];
    for ($i = 0; $i < 7; $i++) {
        $permissions[] = ['key' => "Perm.$i", 'type' => 'application', 'status' => 'granted', 'features' => []];
    }
    for ($i = 7; $i < 14; $i++) {
        $permissions[] = ['key' => "Perm.$i", 'type' => 'application', 'status' => 'missing', 'features' => []];
    }

    $result = $calculator->calculate([
        'overall_status' => 'missing',
        'permissions' => $permissions,
    ]);

    expect($result)->toBe(50);
});