27-05-2026 DHL Modul v2.1 / Optimierung tracking

tests/Unit/Dhl/ReturnsServiceCountryCodeTest.php

@@ -0,0 +1,48 @@
+<?php
+
+use Acme\Dhl\Services\ReturnsService;
+use Acme\Dhl\Support\DhlClient;
+
+function invokeReturnsServiceConvert(string $method, $argument)
+{
+    $service = new ReturnsService(new DhlClient('https://example.test', null, null, null));
+
+    $reflection = (new ReflectionClass(ReturnsService::class))->getMethod($method);
+    $reflection->setAccessible(true);
+
+    return $reflection->invoke($service, $argument);
+}
+
+it('converts known ISO-2 country codes to DHL ISO-3 via the resolver', function (string $input, string $expected) {
+    expect(invokeReturnsServiceConvert('convertCountryCode', $input))->toBe($expected);
+})->with([
+    'germany' => ['DE', 'DEU'],
+    'austria' => ['AT', 'AUT'],
+    'switzerland' => ['CH', 'CHE'],
+    'spain' => ['ES', 'ESP'],
+    'germany lowercase' => ['de', 'DEU'],
+    'germany already iso-3' => ['DEU', 'DEU'],
+]);
+
+it('throws on unsupported country codes instead of silently using DEU', function () {
+    invokeReturnsServiceConvert('convertCountryCode', 'XX');
+})->throws(InvalidArgumentException::class);
+
+it('normalizes addresses back to ISO-2 via the resolver', function () {
+    $converted = invokeReturnsServiceConvert('convertAddressFor2LetterCountry', [
+        'name' => 'Test',
+        'country' => 'AUT',
+    ]);
+
+    expect($converted['country'])->toBe('AT');
+});
+
+it('throws when normalizing an address with an unsupported country', function () {
+    invokeReturnsServiceConvert('convertAddressFor2LetterCountry', ['country' => 'ZZ']);
+})->throws(InvalidArgumentException::class);
+
+it('keeps the address unchanged when the country key is missing', function () {
+    $converted = invokeReturnsServiceConvert('convertAddressFor2LetterCountry', ['name' => 'Test']);
+
+    expect($converted)->toBe(['name' => 'Test']);
+});