Deprecate no return on activity get

It turns out that the area most causey of civicrm#18968
is activity get calls with no 'return' - which should be less that the contact.get
ones so trying to deprecate no-return

Civi/Test/Api3TestTrait.php

@@ -159,6 +159,7 @@ public function callAPISuccess($entity, $action, $params = [], $checkAgainst = N
     $params = array_merge([
       'version' => $this->_apiversion,
       'debug' => 1,
+      'return' => 'id',
     ],
       $params
     );

api/v3/Activity.php

@@ -298,7 +298,10 @@ function civicrm_api3_activity_get($params) {
     $options['return']['status_id'] = $options['return']['activity_date_time'] = 1;
     $params['return'] = array_keys($options['return']);
   }
-
+  if (!isset($params['return']) && !$options['is_count']) {
+    // https://github.com/civicrm/civicrm-core/pull/18968
+    CRM_Core_Error::deprecatedWarning('Not setting a return array is deprecated as it will fail on complex sites.');
+  }
   $activities = _civicrm_api3_basic_get(_civicrm_api3_get_BAO(__FUNCTION__), $params, FALSE, 'Activity', $sql);
   if ($options['is_count']) {
     return civicrm_api3_create_success($activities, $params, 'Activity', 'get');

tests/phpunit/api/v3/ACLPermissionTest.php

@@ -604,7 +604,7 @@ public function setUpEntities($entity) {
    * @dataProvider versionThreeAndFour
    * @throws \CRM_Core_Exception
    */
-  public function testGetActivityNoPermissions($version) {
+  public function testGetActivityNoPermissions(int $version): void {
     $this->_apiversion = $version;
     $this->setPermissions([]);
     $this->callAPISuccess('Activity', 'get');
@@ -620,7 +620,7 @@ public function testGetActivityNoPermissions($version) {
    * @throws \CiviCRM_API3_Exception
    * @dataProvider versionThreeAndFour
    */
-  public function testGetActivityViewAllActivitiesDoesntCutItAnymore($version) {
+  public function testGetActivityViewAllActivitiesDoesntCutItAnymore(int $version): void {
     $this->_apiversion = $version;
     $activity = $this->activityCreate();
     $this->setPermissions(['view all activities', 'access CiviCRM']);

tests/phpunit/api/v3/ActivityTest.php

@@ -1311,15 +1311,17 @@ public function testActivityUpdateKeepSource() {
 
   /**
    * Test civicrm_activities_contact_get()
+   *
+   * @throws \CRM_Core_Exception
    */
-  public function testActivitiesContactGet() {
+  public function testActivitiesContactGet(): void {
     $activity = $this->callAPISuccess('activity', 'create', $this->_params);
     $activity2 = $this->callAPISuccess('activity', 'create', $this->_params2);
     // Get activities associated with contact $this->_contactID.
-    $params = [
+    $result = $this->callAPISuccess('Activity', 'get', [
       'contact_id' => $this->_contactID,
-    ];
-    $result = $this->callAPISuccess('activity', 'get', $params);
+      'return' => ['activity_type_id', 'activity_name'],
+    ]);
 
     $this->assertEquals(2, $result['count']);
     $this->assertEquals($this->test_activity_type_value, $result['values'][$activity['id']]['activity_type_id']);
@@ -1329,11 +1331,13 @@ public function testActivitiesContactGet() {
 
   /**
    * Test chained Activity format.
+   *
+   * @throws \CRM_Core_Exception
    */
-  public function testChainedActivityGet() {
+  public function testChainedActivityGet(): void {
 
     $activity = $this->callAPISuccess('Contact', 'Create', [
-      'display_name' => "bob brown",
+      'display_name' => 'bob brown',
       'contact_type' => 'Individual',
       'api.activity_type.create' => [
         'weight' => '2',
@@ -1349,7 +1353,7 @@ public function testChainedActivityGet() {
       ],
     ]);
 
-    $result = $this->callAPISuccess('Activity', 'Get', [
+    $this->callAPISuccess('Activity', 'Get', [
       'id' => $activity['id'],
       'return.assignee_contact_id' => 1,
       'api.contact.get' => ['api.pledge.get' => 1],