Improve AbstractProvider code coverage

Author: flavioheleno

composer.json

@@ -13,7 +13,7 @@
         "psr/http-message": "^2.0"
     },
     "require-dev": {
-        "guzzlehttp/guzzle": "^6.5.8 || ^7.4.5"
+        "guzzlehttp/guzzle": "^6.5.8 || ^7.4.5",
         "mockery/mockery": "^1.3.5",
         "php-parallel-lint/php-parallel-lint": "^1.4",
         "phpunit/phpunit": "^7 || ^8 || ^9 || ^10 || ^11",

test/src/Provider/AbstractProviderTest.php

@@ -2,6 +2,7 @@
 
 namespace League\OAuth2\Client\Test\Provider;
 
+use InvalidArgumentException;
 use League\OAuth2\Client\OptionProvider\PostAuthOptionProvider;
 use Mockery;
 use PHPUnit\Framework\Attributes\DataProvider;
@@ -62,6 +63,38 @@ public function testInvalidGrantObject()
         $this->getMockProvider()->getAccessToken($grant, ['invalid_parameter' => 'none']);
     }
 
+    public function testMissingRequestFactory()
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('No request factory set');
+        $provider = new Fake();
+    }
+
+    public function testMissingStreamFactory()
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('No stream factory set');
+        $provider = new Fake(
+            [],
+            [
+                'requestFactory' => new HttpFactory()
+            ]
+        );
+    }
+
+    public function testMissingHttpClient()
+    {
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('No http client set');
+        $provider = new Fake(
+            [],
+            [
+                'requestFactory' => new HttpFactory(),
+                'streamFactory' => new HttpFactory()
+            ]
+        );
+    }
+
     public function testAuthorizationUrlStateParam()
     {
         $authUrl = $this->getMockProvider()->getAuthorizationUrl([