diff --git a/adapter/awslambda/src/test/java/io/gatehill/imposter/awslambda/OpenApiSimpleTest.kt b/adapter/awslambda/src/test/java/io/gatehill/imposter/awslambda/OpenApiSimpleTest.kt
new file mode 100644
index 000000000..38c3b8c61
--- /dev/null
+++ b/adapter/awslambda/src/test/java/io/gatehill/imposter/awslambda/OpenApiSimpleTest.kt
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2023-2023.
+ *
+ * This file is part of Imposter.
+ *
+ * "Commons Clause" License Condition v1.0
+ *
+ * The Software is provided to you by the Licensor under the License, as
+ * defined below, subject to the following condition.
+ *
+ * Without limiting other conditions in the License, the grant of rights
+ * under the License will not include, and the License does not grant to
+ * you, the right to Sell the Software.
+ *
+ * For purposes of the foregoing, "Sell" means practicing any or all of
+ * the rights granted to you under the License to provide to third parties,
+ * for a fee or other consideration (including without limitation fees for
+ * hosting or consulting/support services related to the Software), a
+ * product or service whose value derives, entirely or substantially, from
+ * the functionality of the Software. Any license notice or attribution
+ * required by the License must also include this Commons Clause License
+ * Condition notice.
+ *
+ * Software: Imposter
+ *
+ * License: GNU Lesser General Public License version 3
+ *
+ * Licensor: Peter Cornish
+ *
+ * Imposter is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Imposter is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with Imposter.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package io.gatehill.imposter.awslambda
+
+import com.amazonaws.services.lambda.runtime.events.APIGatewayV2HTTPEvent
+import com.amazonaws.services.lambda.runtime.tests.annotations.Event
+import org.hamcrest.CoreMatchers.containsString
+import org.hamcrest.MatcherAssert.assertThat
+import org.junit.jupiter.api.Assertions.assertEquals
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.BeforeEach
+import org.junit.jupiter.params.ParameterizedTest
+
+/**
+ * Tests OpenAPI plugin.
+ */
+class OpenApiSimpleTest : AbstractHandlerTest() {
+    private var handler: HandlerV2? = null
+
+    override val configDir = "/openapi-simple/config"
+
+    @BeforeEach
+    fun setUp() {
+        configure()
+        handler = HandlerV2()
+    }
+
+    @ParameterizedTest
+    @Event(value = "openapi-simple/requests/success.json", type = APIGatewayV2HTTPEvent::class)
+    fun `single request should be dispatched`(event: APIGatewayV2HTTPEvent) {
+        val responseEvent = handler!!.handleRequest(event, context!!)
+
+        assertNotNull(responseEvent, "Response event should be returned")
+        assertEquals(200, responseEvent.statusCode)
+        assertThat(responseEvent.body, containsString("Cat"))
+    }
+
+    @ParameterizedTest
+    @Event(value = "openapi-simple/requests/spec_ui.json", type = APIGatewayV2HTTPEvent::class)
+    fun `spec UI is returned`(event: APIGatewayV2HTTPEvent) {
+        val responseEvent = handler!!.handleRequest(event, context!!)
+
+        assertNotNull(responseEvent, "Response event should be returned")
+        assertEquals(200, responseEvent.statusCode)
+        assertThat(responseEvent.body, containsString("Imposter API Sandbox"))
+    }
+}
diff --git a/adapter/awslambda/src/test/resources/openapi-simple/config/imposter-config.yaml b/adapter/awslambda/src/test/resources/openapi-simple/config/imposter-config.yaml
new file mode 100644
index 000000000..940e60d65
--- /dev/null
+++ b/adapter/awslambda/src/test/resources/openapi-simple/config/imposter-config.yaml
@@ -0,0 +1,3 @@
+---
+plugin: openapi
+specFile: petstore.yaml
diff --git a/adapter/awslambda/src/test/resources/openapi-simple/config/petstore.yaml b/adapter/awslambda/src/test/resources/openapi-simple/config/petstore.yaml
new file mode 100644
index 000000000..a48c2b773
--- /dev/null
+++ b/adapter/awslambda/src/test/resources/openapi-simple/config/petstore.yaml
@@ -0,0 +1,33 @@
+openapi: "3.0.1"
+
+info:
+  title: Sample Petstore service
+  version: "1.0.0"
+
+paths:
+  /pets:
+    get:
+      responses:
+        '200':
+          description: Returns all pets from the system
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  type: object
+                  required:
+                    - id
+                    - name
+                  properties:
+                    id:
+                      type: integer
+                    name:
+                      type: string
+              examples:
+                itemsExample:
+                  value:
+                    [
+                      { "id": 101, "name": "Cat" },
+                      { "id": 102, "name": "Dog" }
+                    ]
diff --git a/adapter/awslambda/src/test/resources/openapi-simple/requests/spec_ui.json b/adapter/awslambda/src/test/resources/openapi-simple/requests/spec_ui.json
new file mode 100644
index 000000000..f57e832eb
--- /dev/null
+++ b/adapter/awslambda/src/test/resources/openapi-simple/requests/spec_ui.json
@@ -0,0 +1,12 @@
+{
+  "headers": {},
+  "queryStringParameters": {},
+  "pathParameters": {},
+  "isBase64Encoded": false,
+  "requestContext": {
+    "http": {
+      "path": "/_spec/",
+      "method":  "GET"
+    }
+  }
+}
diff --git a/adapter/awslambda/src/test/resources/openapi-simple/requests/success.json b/adapter/awslambda/src/test/resources/openapi-simple/requests/success.json
new file mode 100644
index 000000000..d064aab96
--- /dev/null
+++ b/adapter/awslambda/src/test/resources/openapi-simple/requests/success.json
@@ -0,0 +1,14 @@
+{
+  "headers": {
+    "Accept": "application/json"
+  },
+  "queryStringParameters": {},
+  "pathParameters": {},
+  "isBase64Encoded": false,
+  "requestContext": {
+    "http": {
+      "path": "/pets",
+      "method":  "GET"
+    }
+  }
+}