mirror of
https://github.com/opensourcepos/opensourcepos.git
synced 2026-04-02 14:24:27 -04:00
Add unit tests for Taxes Summary Report calculations
Tests verify: - Row totals add up (subtotal + tax = total) - Summary totals match sum of row values - Tax-included and tax-not-included modes calculate correctly - Rounding consistency across calculations - Negative values (returns) are handled correctly - Zero tax rows are handled correctly
This commit is contained in:
Ollama
218
tests/Models/Reports/Summary_taxes_test.php
Normal file
218
tests/Models/Reports/Summary_taxes_test.php
Normal file
@@ -0,0 +1,218 @@
|
||||
<?php
|
||||
|
||||
declare(strict_types=1);
|
||||
|
||||
namespace Tests\Models\Reports;
|
||||
|
||||
use CodeIgniter\Test\CIUnitTestCase;
|
||||
|
||||
class Summary_taxes_test extends CIUnitTestCase
|
||||
{
|
||||
public function testRowTotalsAddUp(): void
|
||||
{
|
||||
$rows = [
|
||||
['subtotal' => 100.00, 'tax' => 10.00, 'total' => 110.00],
|
||||
['subtotal' => 200.00, 'tax' => 20.00, 'total' => 220.00],
|
||||
['subtotal' => 50.00, 'tax' => 5.00, 'total' => 55.00],
|
||||
];
|
||||
|
||||
foreach ($rows as $row) {
|
||||
$calculatedTotal = round((float) $row['subtotal'] + (float) $row['tax'], 2);
|
||||
$this->assertEquals(
|
||||
(float) $row['total'],
|
||||
$calculatedTotal,
|
||||
"Row subtotal + tax should equal total: {$row['subtotal']} + {$row['tax']} = {$row['total']}"
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
public function testSummaryTotalsMatchRowSums(): void
|
||||
{
|
||||
$rows = [
|
||||
['subtotal' => 100.00, 'tax' => 10.00, 'total' => 110.00, 'count' => 5],
|
||||
['subtotal' => 200.00, 'tax' => 20.00, 'total' => 220.00, 'count' => 10],
|
||||
['subtotal' => 50.00, 'tax' => 5.00, 'total' => 55.00, 'count' => 3],
|
||||
];
|
||||
|
||||
$summary = $this->calculateSummary($rows, 2);
|
||||
|
||||
$expectedSubtotal = 0;
|
||||
$expectedTax = 0;
|
||||
$expectedTotal = 0;
|
||||
$expectedCount = 0;
|
||||
|
||||
foreach ($rows as $row) {
|
||||
$expectedSubtotal += (float) $row['subtotal'];
|
||||
$expectedTax += (float) $row['tax'];
|
||||
$expectedTotal += (float) $row['total'];
|
||||
$expectedCount += (int) $row['count'];
|
||||
}
|
||||
|
||||
$this->assertEquals(
|
||||
round($expectedSubtotal, 2),
|
||||
$summary['subtotal'],
|
||||
'Summary subtotal should equal sum of row subtotals'
|
||||
);
|
||||
$this->assertEquals(
|
||||
round($expectedTax, 2),
|
||||
$summary['tax'],
|
||||
'Summary tax should equal sum of row taxes'
|
||||
);
|
||||
$this->assertEquals(
|
||||
round($expectedTotal, 2),
|
||||
$summary['total'],
|
||||
'Summary total should equal sum of row totals'
|
||||
);
|
||||
$this->assertEquals(
|
||||
$expectedCount,
|
||||
$summary['count'],
|
||||
'Summary count should equal sum of row counts'
|
||||
);
|
||||
}
|
||||
|
||||
public function testSubtotalPlusTaxEqualsTotalInSummary(): void
|
||||
{
|
||||
$rows = [
|
||||
['subtotal' => 100.00, 'tax' => 10.00, 'total' => 110.00, 'count' => 5],
|
||||
['subtotal' => 200.00, 'tax' => 20.00, 'total' => 220.00, 'count' => 10],
|
||||
];
|
||||
|
||||
$summary = $this->calculateSummary($rows, 2);
|
||||
|
||||
$calculatedTotal = round($summary['subtotal'] + $summary['tax'], 2);
|
||||
$this->assertEquals(
|
||||
$summary['total'],
|
||||
$calculatedTotal,
|
||||
'Summary subtotal + tax should equal summary total'
|
||||
);
|
||||
}
|
||||
|
||||
public function testRoundingConsistency(): void
|
||||
{
|
||||
$rows = [
|
||||
['subtotal' => 99.99, 'tax' => 9.999, 'total' => 109.989],
|
||||
['subtotal' => 33.33, 'tax' => 3.333, 'total' => 36.663],
|
||||
];
|
||||
|
||||
$summary = $this->calculateSummary($rows, 2);
|
||||
|
||||
$sumOfRoundedSubtotals = 0;
|
||||
$sumOfRoundedTaxes = 0;
|
||||
|
||||
foreach ($rows as $row) {
|
||||
$sumOfRoundedSubtotals += round((float) $row['subtotal'], 2);
|
||||
$sumOfRoundedTaxes += round((float) $row['tax'], 2);
|
||||
}
|
||||
|
||||
$expectedTotal = round($sumOfRoundedSubtotals + $sumOfRoundedTaxes, 2);
|
||||
|
||||
$this->assertEquals(
|
||||
$expectedTotal,
|
||||
$summary['total'],
|
||||
'Total should be sum of rounded subtotals + sum of rounded taxes'
|
||||
);
|
||||
}
|
||||
|
||||
public function testTaxIncludedModeCalculation(): void
|
||||
{
|
||||
$saleAmount = 110.00;
|
||||
$taxAmount = 10.00;
|
||||
|
||||
$subtotal = round($saleAmount - $taxAmount, 2);
|
||||
$total = round($saleAmount, 2);
|
||||
|
||||
$this->assertEquals(100.00, $subtotal, 'Tax-included: subtotal should be sale_amount - tax');
|
||||
$this->assertEquals(110.00, $total, 'Tax-included: total should be sale_amount');
|
||||
$this->assertEquals(
|
||||
$total,
|
||||
round($subtotal + $taxAmount, 2),
|
||||
'Tax-included: total should equal subtotal + tax'
|
||||
);
|
||||
}
|
||||
|
||||
public function testTaxNotIncludedModeCalculation(): void
|
||||
{
|
||||
$saleAmount = 100.00;
|
||||
$taxAmount = 10.00;
|
||||
|
||||
$subtotal = round($saleAmount, 2);
|
||||
$total = round($saleAmount + $taxAmount, 2);
|
||||
|
||||
$this->assertEquals(100.00, $subtotal, 'Tax-not-included: subtotal should be sale_amount');
|
||||
$this->assertEquals(110.00, $total, 'Tax-not-included: total should be sale_amount + tax');
|
||||
$this->assertEquals(
|
||||
$total,
|
||||
round($subtotal + $taxAmount, 2),
|
||||
'Tax-not-included: total should equal subtotal + tax'
|
||||
);
|
||||
}
|
||||
|
||||
public function testNegativeValuesForReturns(): void
|
||||
{
|
||||
$rows = [
|
||||
['subtotal' => -100.00, 'tax' => -10.00, 'total' => -110.00, 'count' => 1],
|
||||
['subtotal' => 200.00, 'tax' => 20.00, 'total' => 220.00, 'count' => 2],
|
||||
];
|
||||
|
||||
foreach ($rows as $row) {
|
||||
$calculatedTotal = round((float) $row['subtotal'] + (float) $row['tax'], 2);
|
||||
$this->assertEquals(
|
||||
(float) $row['total'],
|
||||
$calculatedTotal,
|
||||
"Negative row: subtotal + tax should equal total"
|
||||
);
|
||||
}
|
||||
|
||||
$summary = $this->calculateSummary($rows, 2);
|
||||
|
||||
$this->assertEquals(100.00, $summary['subtotal'], 'Summary should handle negative values');
|
||||
$this->assertEquals(10.00, $summary['tax'], 'Summary tax should handle negative values');
|
||||
$this->assertEquals(110.00, $summary['total'], 'Summary total should handle negative values');
|
||||
}
|
||||
|
||||
public function testZeroTaxRows(): void
|
||||
{
|
||||
$rows = [
|
||||
['subtotal' => 100.00, 'tax' => 0.00, 'total' => 100.00, 'count' => 1],
|
||||
['subtotal' => 200.00, 'tax' => 0.00, 'total' => 200.00, 'count' => 2],
|
||||
];
|
||||
|
||||
foreach ($rows as $row) {
|
||||
$this->assertEquals(
|
||||
(float) $row['subtotal'],
|
||||
(float) $row['total'],
|
||||
'Zero tax: subtotal should equal total'
|
||||
);
|
||||
}
|
||||
|
||||
$summary = $this->calculateSummary($rows, 2);
|
||||
|
||||
$this->assertEquals(
|
||||
$summary['subtotal'],
|
||||
$summary['total'],
|
||||
'Zero tax summary: subtotal should equal total'
|
||||
);
|
||||
}
|
||||
|
||||
private function calculateSummary(array $rows, int $decimals = 2): array
|
||||
{
|
||||
$subtotal = 0;
|
||||
$tax = 0;
|
||||
$total = 0;
|
||||
$count = 0;
|
||||
|
||||
foreach ($rows as $row) {
|
||||
$subtotal += (float) $row['subtotal'];
|
||||
$tax += (float) $row['tax'];
|
||||
$total += (float) $row['total'];
|
||||
$count += (int) $row['count'];
|
||||
}
|
||||
|
||||
return [
|
||||
'subtotal' => round($subtotal, $decimals),
|
||||
'tax' => round($tax, $decimals),
|
||||
'total' => round($total, $decimals),
|
||||
'count' => $count,
|
||||
];
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user