MAPG-177 add test for JwtParser

tests/Util/JwtParserTest.php

@@ -0,0 +1,51 @@
+<?php namespace MapGuesser\Tests\Util;
+
+use MapGuesser\Util\JwtParser;
+use PHPUnit\Framework\TestCase;
+
+final class JwtParserTest extends TestCase
+{
+    private JwtParser $jwtParser;
+
+    protected function setUp(): void
+    {
+        $this->jwtParser = new JwtParser(
+            'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c'
+        );
+    }
+
+    public function testSettingTokenIsTheSameAsCreatingWithToken(): void
+    {
+        $jwtParser2 = new JwtParser();
+        $jwtParser2->setToken(
+            'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c'
+        );
+
+        $this->assertEquals($this->jwtParser, $jwtParser2);
+    }
+
+    public function testCanParseTokenHeader(): void
+    {
+        $this->assertEquals([
+            'alg' => 'HS256',
+            'typ' => 'JWT'
+        ], $this->jwtParser->getHeader());
+    }
+
+    public function testCanParseTokenPayload(): void
+    {
+        $this->assertEquals([
+            'sub' => '1234567890',
+            'name' => 'John Doe',
+            'iat' => 1516239022
+        ], $this->jwtParser->getPayload());
+    }
+
+    public function testCanParseTokenSignature(): void
+    {
+        $this->assertEquals(
+            '49f94ac7044948c78a285d904f87f0a4c7897f7e8f3a4eb2255fda750b2cc397',
+            bin2hex($this->jwtParser->getSignature())
+        );
+    }
+}