Fix bug in toString function

Author: asispts

src/Data/MediaType.php

@@ -61,7 +61,11 @@ public function toString(): string
     {
         $value = $this->name;
         if (\count($this->parameters) > 0) {
-            $value .= ';' . \implode(';', $this->parameters);
+            $params = [];
+            foreach ($this->parameters as $key => $paramValue) {
+                $params[] = $key . '=' . $paramValue;
+            }
+            $value .= ';' . \implode(';', $params);
         }
         return $value;
     }

tests/Data/MediaTypeTest.php

@@ -2,6 +2,7 @@
 
 namespace HttpAccept\Tests\Data;
 
+use Generator;
 use HttpAccept\Utility\Parser;
 use PHPUnit\Framework\TestCase;
 
@@ -23,4 +24,18 @@ public function test_parameter_case_insensitive(): void
 
         $this->assertTrue($types[0]->hasParamater('Q'));
     }
+
+    /**
+     * @dataProvider toStringDataProvider
+     */
+    public function test_to_string(string $source, string $expected): void
+    {
+        $types = (new Parser())->parse($source);
+        $this->assertSame($expected, $types[0]->toString());
+    }
+
+    public function toStringDataProvider(): Generator
+    {
+        yield['*;version=1.0', '*;version=1.0'];
+    }
 }