diff --git a/src/__tests__/activity_custom_property_create_cert.test.js b/src/__tests__/activity_custom_property_create_cert.test.js
new file mode 100644
index 0000000..5b642be
--- /dev/null
+++ b/src/__tests__/activity_custom_property_create_cert.test.js
@@ -0,0 +1,50 @@
+import { jest, test, expect, describe } from '@jest/globals';
+
+import { createUserActivityBucketsCustomProperty } from '../lib/cmd/qseow/createuseractivitycp.js';
+
+const options = {
+    logLevel: process.env.CTRL_Q_LOG_LEVEL || 'info',
+    authType: process.env.CTRL_Q_AUTH_TYPE || 'cert',
+    authCertFile: process.env.CTRL_Q_AUTH_CERT_FILE || './cert/client.pem',
+    authCertKeyFile: process.env.CTRL_Q_AUTH_CERT_KEY_FILE || './cert/client_key.pem',
+    authRootCertFile: process.env.CTRL_Q_AUTH_ROOT_CERT_FILE || './cert/root.pem',
+    host: process.env.CTRL_Q_HOST || '',
+    port: process.env.CTRL_Q_PORT || '4242',
+    schemaVersion: process.env.CTRL_Q_SCHEMA_VERSION || '12.612.0',
+    virtualProxy: process.env.CTRL_Q_VIRTUAL_PROXY || '',
+    secure: process.env.CTRL_Q_SECURE || true,
+    authUserDir: process.env.CTRL_Q_AUTH_USER_DIR || '',
+    authUserId: process.env.CTRL_Q_AUTH_USER_ID || '',
+
+    updateUserSleep: process.env.CTRL_Q_UPDATE_USER_SLEEP || 500,
+    updateBatchSleep: process.env.CTRL_Q_UPDATE_BATCH_SLEEP || 3,
+    updateBatchSize: process.env.CTRL_Q_UPDATE_BATCH_SIZE || 10,
+    updateBatchSize: process.env.CTRL_Q_UPDATE_BATCH_SIZE || 10,
+    activityBuckets: process.env.CTRL_Q_ACTIVITY_BUCKETS || ['1', '7', '14', '30', '90', '180', '365'],
+    licenseType: process.env.CTRL_Q_LICENSE_TYPE || ['analyzer', 'analyzer-time', 'login', 'professional', 'user'],
+};
+
+const defaultTestTimeout = process.env.CTRL_Q_TEST_TIMEOUT || 600000; // 10 minute default timeout
+console.log(`Jest timeout: ${defaultTestTimeout}`);
+jest.setTimeout(defaultTestTimeout);
+
+test('get tasks (verify parameters) ', async () => {
+    expect(options.authCertFile).not.toHaveLength(0);
+    expect(options.authCertKeyFile).not.toHaveLength(0);
+    expect(options.authRootCertFile).not.toHaveLength(0);
+    expect(options.host).not.toHaveLength(0);
+    expect(options.authUserDir).not.toHaveLength(0);
+    expect(options.authUserId).not.toHaveLength(0);
+});
+
+// Test suite for creating user activity buckets custom property
+describe('create user activity custom property (cert auth)', () => {
+    test('do not overwrite existing custom property, default buckets, user directory [LAB]', async () => {
+        options.userDirectory = ['LAB'];
+        options.customPropertyName = 'Ctrl_Q_User_Activity_Bucket';
+        options.force = true;
+
+        const result = await createUserActivityBucketsCustomProperty(options);
+        expect(result).toBe(true);
+    });
+});