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objecttothisandClaude Sonnet 5
0015b7575c
These landed on master by accident via a local branch that was mistakenly created tracking OpensourcePOS/master directly, rather than pushed as its own branch. Reverting to restore master to its prior state; the reverted work will come back through a proper PR instead. This reverts commit00bf4cb8af. This reverts commit37cc1b15e7. Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
93 lines
2.9 KiB
PHP
93 lines
2.9 KiB
PHP
<?php
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namespace Tests\Models;
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use App\Models\Item_quantity;
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use CodeIgniter\Test\CIUnitTestCase;
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use CodeIgniter\Test\DatabaseTestTrait;
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use Config\Database;
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use Tests\Support\ConcurrentDbRaceTrait;
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use Tests\Support\ItemFixtureTrait;
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/**
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* Regression tests: changeQuantity() must apply
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* its write in a single atomic upsert, so that two concurrent sales of the
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* same item/location can never both read the same stale quantity and
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* oversell stock. Unlike the gift card and reward point spends, there is
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* deliberately no floor guard here (see the fix's scope note) — negative
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* stock is allowed today and this fix does not change that.
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*/
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class ItemQuantityTest extends CIUnitTestCase
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{
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use DatabaseTestTrait;
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use ConcurrentDbRaceTrait;
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use ItemFixtureTrait;
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protected $migrate = true;
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protected $migrateOnce = true;
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protected $refresh = false;
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protected $namespace = null;
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private const LOCATION_ID = 1;
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public static function setUpBeforeClass(): void
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{
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$seeder = Database::seeder('tests');
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$seeder->call('TestDatabaseBootstrapSeeder');
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}
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protected function setUp(): void
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{
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parent::setUp();
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}
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protected function createItemQuantityRow(int $itemId, float $quantity): void
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{
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\Config\Database::connect()->table('item_quantities')->insert([
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'item_id' => $itemId,
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'location_id' => self::LOCATION_ID,
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'quantity' => $quantity,
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]);
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}
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public function testDecrementQuantitySucceeds(): void
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{
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$itemId = $this->createTestItem();
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$this->createItemQuantityRow($itemId, 10);
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$itemQuantityModel = model(Item_quantity::class);
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$result = $itemQuantityModel->changeQuantity($itemId, self::LOCATION_ID, -3);
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$this->assertTrue($result);
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$this->assertEqualsWithDelta(7.0, $this->getItemQuantity($itemId, self::LOCATION_ID), 0.001);
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}
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public function testDecrementQuantityAllowsGoingNegative(): void
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{
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$itemId = $this->createTestItem();
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$this->createItemQuantityRow($itemId, 5);
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$itemQuantityModel = model(Item_quantity::class);
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$result = $itemQuantityModel->changeQuantity($itemId, self::LOCATION_ID, -8);
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$this->assertTrue($result);
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$this->assertEqualsWithDelta(-3.0, $this->getItemQuantity($itemId, self::LOCATION_ID), 0.001);
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}
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public function testDecrementQuantityConcurrentDecrementsBothApply(): void
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{
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$itemId = $this->createTestItem();
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$this->createItemQuantityRow($itemId, 10);
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[$result1, $result2] = $this->raceTwoProcesses(
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'itemQuantity',
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[$itemId, self::LOCATION_ID, -3.0],
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[$itemId, self::LOCATION_ID, -3.0]
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);
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$this->assertTrue($result1);
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$this->assertTrue($result2);
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$this->assertEqualsWithDelta(4.0, $this->getItemQuantity($itemId, self::LOCATION_ID), 0.001);
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}
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}
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