diff --git a/tests/phpunit/api/v3/TwingleProject/SyncTest.php b/tests/phpunit/api/v3/TwingleProject/SyncTest.php
new file mode 100644
index 0000000..fbedf93
--- /dev/null
+++ b/tests/phpunit/api/v3/TwingleProject/SyncTest.php
@@ -0,0 +1,53 @@
+<?php
+
+use Civi\Test\HeadlessInterface;
+use Civi\Test\HookInterface;
+use Civi\Test\TransactionalInterface;
+
+/**
+ * TwingleProject.Sync API Test Case
+ * This is a generic test class implemented with PHPUnit.
+ * @group headless
+ */
+class api_v3_TwingleProject_SyncTest extends \PHPUnit\Framework\TestCase implements HeadlessInterface, HookInterface, TransactionalInterface {
+  use \Civi\Test\Api3TestTrait;
+
+  /**
+   * Set up for headless tests.
+   *
+   * Civi\Test has many helpers, like install(), uninstall(), sql(), and sqlFile().
+   *
+   * See: https://docs.civicrm.org/dev/en/latest/testing/phpunit/#civitest
+   */
+  public function setUpHeadless() {
+    return \Civi\Test::headless()
+      ->installMe(__DIR__)
+      ->apply();
+  }
+
+  /**
+   * The setup() method is executed before the test is executed (optional).
+   */
+  public function setUp() {
+    parent::setUp();
+  }
+
+  /**
+   * The tearDown() method is executed after the test was executed (optional)
+   * This can be used for cleanup.
+   */
+  public function tearDown() {
+    parent::tearDown();
+  }
+
+  /**
+   * Simple example test case.
+   *
+   * Note how the function name begins with the word "test".
+   */
+  public function testApiExample() {
+    $result = civicrm_api3('TwingleProject', 'Sync', array('magicword' => 'sesame'));
+    $this->assertEquals('Twelve', $result['values'][12]['name']);
+  }
+
+}