AC-1271: Add rate limiting for payment information endpoint and mutation

Author: arhiopterecs

dev/tests/integration/testsuite/Magento/Framework/App/Backpressure/SlidingWindow/CacheRequestLoggerTest.php

@@ -13,6 +13,9 @@
 use Magento\TestFramework\Helper\Bootstrap;
 use PHPUnit\Framework\TestCase;
 
+/**
+ *  Tests CacheRequestLogger class
+ */
 class CacheRequestLoggerTest extends TestCase
 {
     /**

lib/internal/Magento/Framework/Webapi/Test/Unit/Backpressure/CompositeRequestTypeExtractorTest.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Framework\Webapi\Test\Unit\Backpressure;
+
+use Magento\Framework\Webapi\Backpressure\BackpressureRequestTypeExtractorInterface;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use Magento\Framework\Webapi\Backpressure\CompositeRequestTypeExtractor;
+
+/**
+ * Tests the CompositeRequestTypeExtractor class
+ */
+class CompositeRequestTypeExtractorTest extends TestCase
+{
+    /**
+     * @var CompositeRequestTypeExtractor
+     */
+    private CompositeRequestTypeExtractor $compositeRequestTypeExtractor;
+
+    /**
+     * @var BackpressureRequestTypeExtractorInterface|MockObject
+     */
+    private $extractorMock;
+
+    /**
+     * @inheritDoc
+     */
+    protected function setUp(): void
+    {
+        $this->extractorMock = $this->getMockForAbstractClass(
+            BackpressureRequestTypeExtractorInterface::class
+        );
+
+        $this->compositeRequestTypeExtractor = new CompositeRequestTypeExtractor(
+            array_fill(0, 3, $this->extractorMock)
+        );
+    }
+
+    /**
+     * Tests CompositeRequestTypeExtractor
+     */
+    public function testExtract()
+    {
+        $this->extractorMock->expects($this->exactly(2))
+            ->method('extract')
+            ->with('someService', 'someMethod', 'someEndpoint')
+            ->willReturnOnConsecutiveCalls(null, 'someType');
+
+        $this->assertEquals(
+            'someType',
+            $this->compositeRequestTypeExtractor->extract(
+                'someService',
+                'someMethod',
+                'someEndpoint'
+            )
+        );
+    }
+
+    /**
+     * Tests CompositeRequestTypeExtractor when type
+     */
+    public function testExtractTypeNotFound()
+    {
+        $this->extractorMock->expects($this->exactly(3))
+            ->method('extract')
+            ->with('someService', 'someMethod', 'someEndpoint')
+            ->willReturn(null);
+        $this->assertEquals(
+            null,
+            $this->compositeRequestTypeExtractor->extract(
+                'someService',
+                'someMethod',
+                'someEndpoint'
+            )
+        );
+    }
+}