add test for creating a custom field for an importer resource

Author: jenschude

test/unit/ImportPriceDraftTest.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Commercetools\UnitTest;
+
+use Commercetools\Import\Models\Common\MoneyBuilder;
+use Commercetools\Import\Models\Common\TypeKeyReferenceBuilder;
+use Commercetools\Import\Models\Customfields\CustomBuilder;
+use Commercetools\Import\Models\Customfields\FieldContainerModel;
+use Commercetools\Import\Models\Productdrafts\PriceDraftImportBuilder;
+use PHPUnit\Framework\TestCase;
+
+class ImportPriceDraftTest extends TestCase
+{
+    public function testPriceDraft()
+    {
+        $priceDraft = PriceDraftImportBuilder::of()
+            ->withCustomBuilder(
+                CustomBuilder::of()
+                    ->withTypeBuilder(TypeKeyReferenceBuilder::of()->withKey("mytypekey"))
+                    ->withFields(
+                        FieldContainerModel::fromArray(
+                            [
+                                'foo' => MoneyBuilder::of()
+                                    ->withCurrencyCode('EUR')
+                                    ->withCentAmount(100)
+                                    ->build()
+                            ]
+                        )
+                    )
+            )
+        ;
+        $this->assertJsonStringEqualsJsonString(
+            '{
+                "custom": {
+                    "fields": {
+                        "foo": {
+                            "centAmount": 100,
+                            "currencyCode": "EUR",
+                            "type": "centPrecision"
+                        }
+                    },
+                    "type": {
+                        "key": "mytypekey",
+                        "typeId": "type"
+                    }
+                }
+            }',
+            json_encode($priceDraft->build())
+        );
+    }
+}