Replace emarref/jwt with lcobucci/jwt

Refactor all JWT-related components
Replace RS256 with ES256 as a preferred JWT algorithm

api/tests/unit/models/authentication/AuthenticationResultTest.php

@@ -0,0 +1,40 @@
+<?php
+declare(strict_types=1);
+
+namespace api\tests\unit\models\authentication;
+
+use api\models\authentication\AuthenticationResult;
+use api\tests\unit\TestCase;
+use Lcobucci\JWT\Token;
+use Yii;
+
+class AuthenticationResultTest extends TestCase {
+
+    public function testGetters() {
+        $token = new Token();
+        $model = new AuthenticationResult($token);
+        $this->assertSame($token, $model->getToken());
+        $this->assertNull($model->getRefreshToken());
+
+        $model = new AuthenticationResult($token, 'refresh_token');
+        $this->assertSame('refresh_token', $model->getRefreshToken());
+    }
+
+    public function testGetAsResponse() {
+        $token = Yii::$app->tokens->create();
+        $jwt = (string)$token;
+
+        $model = new AuthenticationResult($token);
+        $result = $model->formatAsOAuth2Response();
+        $this->assertSame($jwt, $result['access_token']);
+        $this->assertEqualsWithDelta(3600, $result['expires_in'], 1);
+        $this->assertArrayNotHasKey('refresh_token', $result);
+
+        $model = new AuthenticationResult($token, 'refresh_token');
+        $result = $model->formatAsOAuth2Response();
+        $this->assertSame($jwt, $result['access_token']);
+        $this->assertEqualsWithDelta(3600, $result['expires_in'], 1);
+        $this->assertSame('refresh_token', $result['refresh_token']);
+    }
+
+}