Rework tests structure. Upgrade codeception to 2.5.3. Merge params configuration into app configuration.

api/tests/unit/models/base/ApiFormTest.php

@@ -0,0 +1,27 @@
+<?php
+namespace api\tests\_support\models\base;
+
+use api\models\base\ApiForm;
+use api\tests\unit\TestCase;
+
+class ApiFormTest extends TestCase {
+
+    public function testLoad() {
+        $model = new DummyApiForm();
+        $this->assertTrue($model->load(['field' => 'test-data']), 'model successful load data without prefix');
+        $this->assertEquals('test-data', $model->field, 'field is set as passed data');
+    }
+
+}
+
+class DummyApiForm extends ApiForm {
+
+    public $field;
+
+    public function rules() {
+        return [
+            ['field', 'safe'],
+        ];
+    }
+
+}