diff --git a/Test/Unit/Gateway/Http/Client/TransactionCaptureTest.php b/Test/Unit/Gateway/Http/Client/TransactionCaptureTest.php
new file mode 100644
index 000000000..4c161dda7
--- /dev/null
+++ b/Test/Unit/Gateway/Http/Client/TransactionCaptureTest.php
@@ -0,0 +1,125 @@
+<?php
+
+namespace Adyen\Payment\Test\Unit\Gateway\Http\Client;
+
+use Adyen\Payment\Gateway\Http\Client\TransactionCapture;
+use Adyen\Payment\Test\Unit\AbstractAdyenTestCase;
+use Adyen\Service\Checkout;
+use Magento\Payment\Gateway\Http\TransferInterface;
+use Adyen\Payment\Helper\Idempotency;
+use Adyen\Payment\Logger\AdyenLogger;
+use Adyen\Payment\Helper\Data;
+use Adyen\AdyenException;
+use PHPUnit\Framework\MockObject\MockObject;
+
+class TransactionCaptureTest extends AbstractAdyenTestCase
+{
+    private TransactionCapture $transactionCapture;
+    private TransferInterface|MockObject $transferObject;
+    private array $request;
+    private Data|MockObject $adyenHelper;
+    private Idempotency|MockObject $idempotencyHelper;
+
+    protected function setUp(): void
+    {
+        $this->adyenHelper = $this->createMock(Data::class);
+        $adyenLogger = $this->createMock(AdyenLogger::class);
+        $this->idempotencyHelper = $this->createMock(Idempotency::class);
+
+        $this->transactionCapture = new TransactionCapture(
+            $this->adyenHelper,
+            $adyenLogger,
+            $this->idempotencyHelper
+        );
+
+        $this->request = [
+            'amount' => ['value' => 100, 'currency' => 'USD'],
+            'paymentPspReference' => 'testPspReference'
+        ];
+
+        $this->transferObject = $this->createConfiguredMock(TransferInterface::class, [
+            'getBody' => $this->request,
+            'getHeaders' => ['idempotencyExtraData' => ['someData']],
+            'getClientConfig' => []
+        ]);
+    }
+
+    private function configureAdyenMocks(array $response = null, \Exception $exception = null)
+    {
+        $adyenClient = $this->createMock(\Adyen\Client::class);
+        $adyenService = $this->createMock(Checkout::class);
+        $expectedIdempotencyKey = 'generated_idempotency_key';
+
+        $this->adyenHelper->method('initializeAdyenClientWithClientConfig')->willReturn($adyenClient);
+        $this->adyenHelper->method('createAdyenCheckoutService')->willReturn($adyenService);
+        $this->adyenHelper->method('buildRequestHeaders')->willReturn([]);
+        $this->adyenHelper->expects($this->once())->method('logRequest');
+        $this->adyenHelper->expects($this->once())->method('logResponse');
+
+        $this->idempotencyHelper->expects($this->once())
+            ->method('generateIdempotencyKey')
+            ->with(
+                $this->request,
+                $this->equalTo(['someData'])
+            )
+            ->willReturn($expectedIdempotencyKey);
+
+        if ($response) {
+            $adyenService->expects($this->once())
+                ->method('captures')
+                ->with(
+                    $this->equalTo($this->request),
+                    $this->callback(function ($requestOptions) use ($expectedIdempotencyKey) {
+                        return isset($requestOptions['idempotencyKey']) &&
+                            $requestOptions['idempotencyKey'] === $expectedIdempotencyKey;
+                    })
+                )
+                ->willReturn($response);
+        }
+
+        if ($exception) {
+            $adyenService->expects($this->once())
+                ->method('captures')
+                ->with(
+                    $this->equalTo($this->request),
+                    $this->callback(function ($requestOptions) use ($expectedIdempotencyKey) {
+                        return isset($requestOptions['idempotencyKey']) &&
+                            $requestOptions['idempotencyKey'] === $expectedIdempotencyKey;
+                    })
+                )
+                ->willThrowException($exception);
+        }
+
+        return $adyenService;
+    }
+
+    public function testPlaceRequest()
+    {
+        $expectedResponse = [
+            'capture_amount' => $this->request['amount']['value'],
+            'paymentPspReference' => $this->request['paymentPspReference']
+        ];
+
+        $this->configureAdyenMocks($expectedResponse);
+
+        // Call the method under test
+        $response = $this->transactionCapture->placeRequest($this->transferObject);
+
+        // Assert that the response is as expected
+        $this->assertEquals($expectedResponse, $response);
+    }
+
+    public function testPlaceRequestWithException()
+    {
+        $expectedException = new AdyenException('Test exception');
+
+        $this->configureAdyenMocks(null, $expectedException);
+
+        // Call the method under test
+        $response = $this->transactionCapture->placeRequest($this->transferObject);
+
+        // Assert that the response contains the error message
+        $this->assertArrayHasKey('error', $response);
+        $this->assertEquals('Test exception', $response['error']);
+    }
+}