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

api/tests/_support/FunctionalTester.php

@@ -0,0 +1,43 @@
+<?php
+declare(strict_types=1);
+
+namespace api\tests;
+
+use api\tests\_generated\FunctionalTesterActions;
+use Codeception\Actor;
+use common\models\Account;
+use InvalidArgumentException;
+use Yii;
+
+class FunctionalTester extends Actor {
+    use FunctionalTesterActions;
+
+    public function amAuthenticated(string $asUsername = 'admin') {
+        /** @var Account $account */
+        $account = Account::findOne(['username' => $asUsername]);
+        if ($account === null) {
+            throw new InvalidArgumentException("Cannot find account for username \"$asUsername\"");
+        }
+
+        $result = Yii::$app->user->createJwtAuthenticationToken($account, false);
+        $this->amBearerAuthenticated($result->getJwt());
+
+        return $account->id;
+    }
+
+    public function notLoggedIn(): void {
+        $this->haveHttpHeader('Authorization', null);
+        Yii::$app->user->logout();
+    }
+
+    public function canSeeAuthCredentials($expectRefresh = false): void {
+        $this->canSeeResponseJsonMatchesJsonPath('$.access_token');
+        $this->canSeeResponseJsonMatchesJsonPath('$.expires_in');
+        if ($expectRefresh) {
+            $this->canSeeResponseJsonMatchesJsonPath('$.refresh_token');
+        } else {
+            $this->cantSeeResponseJsonMatchesJsonPath('$.refresh_token');
+        }
+    }
+
+}