diff --git a/src/test/api.test.ts b/src/test/api.test.ts
new file mode 100644
index 000000000000..24eb78c11bf0
--- /dev/null
+++ b/src/test/api.test.ts
@@ -0,0 +1,24 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { expect } from 'chai';
+import { IExtensionApi } from '../client/apiTypes';
+import { ProposedExtensionAPI } from '../client/proposedApiTypes';
+import { initialize } from './initialize';
+
+suite('Python API tests', () => {
+    let api: IExtensionApi & ProposedExtensionAPI;
+    suiteSetup(async () => {
+        api = await initialize();
+    });
+    test('Active environment is defined', async () => {
+        const environmentPath = api.environments.getActiveEnvironmentPath();
+        const environment = await api.environments.resolveEnvironment(environmentPath);
+        expect(environment).to.not.equal(
+            undefined,
+            `Active environment is not defined, envPath: ${JSON.stringify(environmentPath)}, env: ${JSON.stringify(
+                environment,
+            )}`,
+        );
+    });
+});
diff --git a/src/test/common.ts b/src/test/common.ts
index e58830b7f236..0a76c495830a 100644
--- a/src/test/common.ts
+++ b/src/test/common.ts
@@ -14,6 +14,7 @@ import type { IExtensionApi } from '../client/apiTypes';
 import { IProcessService } from '../client/common/process/types';
 import { IDisposable } from '../client/common/types';
 import { IServiceContainer, IServiceManager } from '../client/ioc/types';
+import { ProposedExtensionAPI } from '../client/proposedApiTypes';
 import { EXTENSION_ROOT_DIR_FOR_TESTS, IS_MULTI_ROOT_TEST, IS_PERF_TEST, IS_SMOKE_TEST } from './constants';
 import { noop, sleep } from './core';
 
@@ -437,7 +438,7 @@ export async function isPythonVersion(...versions: string[]): Promise<boolean> {
     }
 }
 
-export interface IExtensionTestApi extends IExtensionApi {
+export interface IExtensionTestApi extends IExtensionApi, ProposedExtensionAPI {
     serviceContainer: IServiceContainer;
     serviceManager: IServiceManager;
 }