test: fix getPublicKeys test

composer.json

@@ -0,0 +1,35 @@
+{
+    "name": "plus54/m2-cloudflare-access",
+    "description": "Authorize CloudFlare Access requests",
+    "type": "magento2-module",
+    "license": "proprietary",
+    "authors": [
+        {
+            "name": "Mage2Gen",
+            "email": "[email protected]"
+        }
+    ],
+    "minimum-stability": "dev",
+    "require": {
+        "firebase/php-jwt": "dev-master",
+        "magento/framework": "^103.0.2"
+    },
+    "autoload": {
+        "files": [
+            "src/registration.php"
+        ],
+        "psr-4": {
+            "Plus54\\CloudFlareAccess\\": "./src",
+            "Plus54\\CloudFlareAccessTests\\": "./tests"
+        }
+    },
+    "require-dev": {
+        "magento/magento2-functional-testing-framework": "^3.3.0"
+    },
+    "repositories": [
+        {
+            "type": "composer",
+            "url": "https://repo.magento.com/"
+        }
+    ]
+}

tests/TokenValidatorTest.php

@@ -23,12 +23,14 @@ public function testGetPublicKeys(): void
     {
         $url = 'http://example.com';
         $this->curlClient->expects($this->once())->method('get')->with($url);
-        $this->curlClient->expects($this->once())->method('getBody');
-        $this->json->expects($this->once())->method('unserialize')->with($this->isType('string'));
+        $this->curlClient->expects($this->once())->method('getBody')->willReturn('{"foo": "bar"}');
+        $this->json->expects($this->once())->method('unserialize')
+            ->with('{"foo": "bar"}')
+            ->willReturn(['foo' => 'bar'])
+            ;
         $tokenValidator = new TokenValidator($this->json, $this->curlClient);
-
         $res = $tokenValidator->getPublicKeys($url);
-        $this->assertArrayHasKey('kid', $res);
-        //$this->assertSame(expected: )
+        $this->assertIsArray($res);
+        $this->assertArrayHasKey('foo', $res);
     }
 }