public function InvoiceTest::testTotalCalculation in Commerce Invoice 8.2

Tests the invoice total recalculation logic.

@covers ::recalculateTotalPrice

File

tests/src/Kernel/Entity/InvoiceTest.php, line 285

Class

InvoiceTest

Tests the invoice entity.

Namespace

Drupal\Tests\commerce_invoice\Kernel\Entity

Code

public function testTotalCalculation() {
  $invoice = Invoice::create([
    'type' => 'default',
    'store_id' => $this->store
      ->id(),
  ]);
  $invoice
    ->save();

  /** @var \Drupal\commerce_invoice\Entity\InvoiceItemInterface $invoice_item */
  $invoice_item = InvoiceItem::create([
    'type' => 'commerce_product_variation',
    'quantity' => '2',
    'unit_price' => new Price('2.00', 'USD'),
  ]);
  $invoice_item
    ->save();
  $invoice_item = $this
    ->reloadEntity($invoice_item);

  /** @var \Drupal\commerce_invoice\Entity\InvoiceItemInterface $another_invoice_item */
  $another_invoice_item = InvoiceItem::create([
    'type' => 'commerce_product_variation',
    'quantity' => '1',
    'unit_price' => new Price('3.00', 'USD'),
  ]);
  $another_invoice_item
    ->save();
  $another_invoice_item = $this
    ->reloadEntity($another_invoice_item);
  $adjustments = [];
  $adjustments[0] = new Adjustment([
    'type' => 'tax',
    'label' => 'Tax',
    'amount' => new Price('100.00', 'USD'),
    'included' => TRUE,
  ]);
  $adjustments[1] = new Adjustment([
    'type' => 'tax',
    'label' => 'Tax',
    'amount' => new Price('2.121', 'USD'),
    'source_id' => 'us_sales_tax',
  ]);
  $adjustments[2] = new Adjustment([
    'type' => 'tax',
    'label' => 'Tax',
    'amount' => new Price('5.344', 'USD'),
    'source_id' => 'us_sales_tax',
  ]);

  // Included adjustments do not affect the invoice total.
  $invoice
    ->addAdjustment($adjustments[0]);
  $invoice_item
    ->addAdjustment($adjustments[1]);
  $another_invoice_item
    ->addAdjustment($adjustments[2]);
  $invoice
    ->setItems([
    $invoice_item,
    $another_invoice_item,
  ]);
  $invoice
    ->save();

  /** @var \Drupal\commerce_invoice\Entity\InvoiceInterface $invoice */
  $invoice = $this
    ->reloadEntity($invoice);
  $collected_adjustments = $invoice
    ->collectAdjustments();
  $this
    ->assertCount(3, $collected_adjustments);
  $this
    ->assertEquals($adjustments[1], $collected_adjustments[0]);
  $this
    ->assertEquals($adjustments[2], $collected_adjustments[1]);
  $this
    ->assertEquals($adjustments[0], $collected_adjustments[2]);

  // The total will be correct only if the adjustments were correctly
  // combined, and rounded.
  $this
    ->assertEquals(new Price('14.47', 'USD'), $invoice
    ->getTotalPrice());

  // Test handling deleted invoice items + non-inclusive adjustments.
  $invoice
    ->addAdjustment($adjustments[1]);
  $invoice_item
    ->delete();
  $another_invoice_item
    ->delete();
  $invoice
    ->recalculateTotalPrice();
  $this
    ->assertNull($invoice
    ->getTotalPrice());
}