Added more tests for the object mapper + renamed functions

tests/functional/Builder/ArrayMapperTest.php

@@ -16,7 +16,7 @@ final class ArrayMapperTest extends BuilderTestCase
 {
     use TransformerBuilderAssertTrait;
 
-    public function testWithOneConditionThatMatch()
+    public function testWithASingleCopyField()
     {
         $builder = new \Kiboko\Plugin\FastMap\Builder\ArrayMapper(
             $mapper = new ArrayBuilder()
@@ -42,7 +42,7 @@ public function testWithOneConditionThatMatch()
         );
     }
 
-    public function testWithSeveralConditionsThatMatch()
+    public function testWithSameNumberOfOutputFields()
     {
         $builder = new \Kiboko\Plugin\FastMap\Builder\ArrayMapper(
             $mapper = new ArrayBuilder()

tests/functional/Builder/DTO/Product.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace functional\Kiboko\Plugin\FastMap\Builder\DTO;
+
+class Product
+{
+    public function __construct(
+        public int $id,
+        public ?bool $enabled = false,
+    ) {
+    }
+}

tests/functional/Builder/ObjectMapperTest.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace functional\Kiboko\Plugin\FastMap\Builder;
+
+use functional\Kiboko\Plugin\FastMap\Builder\DTO\Product;
+use Kiboko\Component\FastMapConfig\ObjectBuilder;
+use Kiboko\Component\PHPUnitExtension\Assert\TransformerBuilderAssertTrait;
+use Kiboko\Plugin\FastMap\Builder\Transformer;
+
+final class ObjectMapperTest extends BuilderTestCase
+{
+    use TransformerBuilderAssertTrait;
+
+    public function testObjectMapper()
+    {
+        $builder = new \Kiboko\Plugin\FastMap\Builder\ObjectMapper(
+            $mapper = new ObjectBuilder(Product::class)
+        );
+
+        $mapper->arguments('input.id', 'input.enabled');
+
+        $builder = new Transformer($builder);
+
+        $this->assertBuildsTransformerTransformsLike(
+            [
+                new Product(1)
+            ],
+            [
+                new Product(1)
+            ],
+            $builder,
+        );
+
+        $this->assertBuildsTransformerTransformsLike(
+            [
+                new Product(1, true)
+            ],
+            [
+                new Product(1, true)
+            ],
+            $builder,
+        );
+    }
+}