diff --git a/app/code/Magento/Braintree/Test/Unit/Model/InstantPurchase/PaymentAdditionalInformationProviderTest.php b/app/code/Magento/Braintree/Test/Unit/Model/InstantPurchase/PaymentAdditionalInformationProviderTest.php
new file mode 100644
index 0000000000000..2631fcbe5f5b5
--- /dev/null
+++ b/app/code/Magento/Braintree/Test/Unit/Model/InstantPurchase/PaymentAdditionalInformationProviderTest.php
@@ -0,0 +1,83 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Braintree\Test\Unit\Model\InstantPurchase;
+
+use Magento\Braintree\Gateway\Command\GetPaymentNonceCommand;
+use Magento\Braintree\Model\InstantPurchase\PaymentAdditionalInformationProvider;
+use Magento\Payment\Gateway\Command\Result\ArrayResult;
+use Magento\Vault\Api\Data\PaymentTokenInterface;
+
+/**
+ * @covers \Magento\Braintree\Model\InstantPurchase\PaymentAdditionalInformationProvider
+ */
+class PaymentAdditionalInformationProviderTest extends \PHPUnit\Framework\TestCase
+{
+    /**
+     * Testable Object
+     *
+     * @var PaymentAdditionalInformationProvider
+     */
+    private $paymentAdditionalInformationProvider;
+
+    /**
+     * @var GetPaymentNonceCommand|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $getPaymentNonceCommandMock;
+
+    /**
+     * @var PaymentTokenInterface|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $paymentTokenMock;
+
+    /**
+     * @var ArrayResult|\PHPUnit_Framework_MockObject_MockObject
+     */
+    private $arrayResultMock;
+
+    /**
+     * Set Up
+     *
+     * @return void
+     */
+    protected function setUp()
+    {
+        $this->getPaymentNonceCommandMock = $this->createMock(GetPaymentNonceCommand::class);
+        $this->paymentTokenMock = $this->createMock(PaymentTokenInterface::class);
+        $this->arrayResultMock = $this->createMock(ArrayResult::class);
+        $this->paymentAdditionalInformationProvider = new PaymentAdditionalInformationProvider(
+            $this->getPaymentNonceCommandMock
+        );
+    }
+
+    /**
+     * Test getAdditionalInformation method
+     *
+     * @return void
+     */
+    public function testGetAdditionalInformation()
+    {
+        $customerId = 15;
+        $publicHash = '3n4b7sn48g';
+        $paymentMethodNonce = 'test';
+
+        $this->paymentTokenMock->expects($this->once())->method('getCustomerId')->willReturn($customerId);
+        $this->paymentTokenMock->expects($this->once())->method('getPublicHash')->willReturn($publicHash);
+        $this->getPaymentNonceCommandMock->expects($this->once())->method('execute')->with([
+            PaymentTokenInterface::CUSTOMER_ID => $customerId,
+            PaymentTokenInterface::PUBLIC_HASH => $publicHash,
+        ])->willReturn($this->arrayResultMock);
+        $this->arrayResultMock->expects($this->once())->method('get')
+            ->willReturn(['paymentMethodNonce' => $paymentMethodNonce]);
+
+        $expected = [
+            'payment_method_nonce' => $paymentMethodNonce,
+        ];
+        $actual = $this->paymentAdditionalInformationProvider->getAdditionalInformation($this->paymentTokenMock);
+        self::assertEquals($expected, $actual);
+    }
+}