alrahma_sunday_school/tests/app/Services/FinancialCategorySummaryServiceTest.php

<?php

namespace Tests\App\Services;

use App\Services\FinancialCategorySummaryService;
use CodeIgniter\Test\CIUnitTestCase;

class FinancialCategorySummaryServiceTest extends CIUnitTestCase
{
    public function testDonationsAreIncomeAndExcludedFromExpenses(): void
    {
        $summary = FinancialCategorySummaryService::summarize([
            ['category' => 'Books', 'amount' => 125.50],
            ['category' => 'Donation', 'amount' => 500],
            ['category' => 'Office Supplies', 'amount' => 75],
            ['category' => 'donation', 'amount' => 25],
        ]);

        $this->assertSame(200.50, $summary['totalExpenses']);
        $this->assertSame(525.0, $summary['donationIncome']);
        $this->assertSame(['Books' => 125.50, 'Office Supplies' => 75.0], $summary['expenseCategories']);
        $this->assertArrayNotHasKey('Donation', $summary['expenseCategories']);
    }

    public function testPurchasesAreIncludedInExpenseCategory(): void
    {
        $summary = FinancialCategorySummaryService::summarize([
            ['category' => 'Expense', 'amount' => 350],
            ['category' => 'Purchase', 'amount' => 25.50],
            ['category' => 'purchase', 'amount' => 10],
        ]);

        $this->assertSame(385.50, $summary['totalExpenses']);
        $this->assertSame(['Expense' => 385.50], $summary['expenseCategories']);
        $this->assertArrayNotHasKey('Purchase', $summary['expenseCategories']);
    }
}