Deprecate CustomField::listing()

Author: Art4

CHANGELOG.md

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Deprecated
 
+- `Redmine\Api\CustomField::listing()` is deprecated, use `\Redmine\Api\CustomField::listNames()` instead.
 - `Redmine\Api\Group::listing()` is deprecated, use `\Redmine\Api\Group::listNames()` instead.
 - `Redmine\Api\IssueCategory::listing()` is deprecated, use `\Redmine\Api\IssueCategory::listNamesByProject()` instead.
 

src/Redmine/Api/CustomField.php

@@ -99,13 +99,18 @@ public function all(array $params = [])
     /**
      * Returns an array of custom fields with name/id pairs.
      *
+     * @deprecated v2.7.0 Use listNames() instead.
+     * @see CustomField::listNames()
+     *
      * @param bool  $forceUpdate to force the update of the custom fields var
      * @param array $params      optional parameters to be passed to the api (offset, limit, ...)
      *
      * @return array list of custom fields (id => name)
      */
     public function listing($forceUpdate = false, array $params = [])
     {
+        @trigger_error('`' . __METHOD__ . '()` is deprecated since v2.7.0, use `' . __CLASS__ . '::listNames()` instead.', E_USER_DEPRECATED);
+
         if (empty($this->customFields) || $forceUpdate) {
             $this->customFields = $this->list($params);
         }

tests/Unit/Api/CustomFieldTest.php

@@ -287,6 +287,38 @@ public function testListingCallsGetEveryTimeWithForceUpdate()
         $this->assertSame($expectedReturn, $api->listing(true));
     }
 
+    /**
+     * Test listing().
+     */
+    public function testListingTriggersDeprecationWarning()
+    {
+        $client = $this->createMock(Client::class);
+        $client->method('requestGet')
+            ->willReturn(true);
+        $client->method('getLastResponseBody')
+            ->willReturn('{"custom_fields":[{"id":1,"name":"CustomField 1"},{"id":5,"name":"CustomField 5"}]}');
+        $client->method('getLastResponseContentType')
+            ->willReturn('application/json');
+
+        $api = new CustomField($client);
+
+        // PHPUnit 10 compatible way to test trigger_error().
+        set_error_handler(
+            function ($errno, $errstr): bool {
+                $this->assertSame(
+                    '`Redmine\Api\CustomField::listing()` is deprecated since v2.7.0, use `Redmine\Api\CustomField::listNames()` instead.',
+                    $errstr,
+                );
+
+                restore_error_handler();
+                return true;
+            },
+            E_USER_DEPRECATED,
+        );
+
+        $api->listing();
+    }
+
     /**
      * Test getIdByName().
      */