fix: The setStatusCode method can not be called.

Author: ytetsuro

system/HTTP/DownloadResponse.php

@@ -242,15 +242,7 @@ public function getStatusCode(): int
 	 */
 	public function setStatusCode(int $code, string $reason = '')
 	{
-		if ($code !== 200)
-		{
-			throw HTTPException::forInvalidStatusCode($code);
-		}
-
-		if ( ! empty($reason) && $this->reason !== $reason)
-		{
-			$this->reason = $reason;
-		}
+		throw DownloadException::forCannotSetStatusCode($code, $reason);
 	}
 
 	//--------------------------------------------------------------------

tests/system/HTTP/DownloadResponseTest.php

@@ -23,21 +23,12 @@ public function testCanGetStatusCode()
 		$this->assertSame(200, $response->getStatusCode());
 	}
 
-	public function testCanSetCustomReasonCode()
+	public function testCantSetStatusCode()
 	{
 		$response = new DownloadResponse('unit-test.txt', true);
 
-		$response->setStatusCode(200, 'Not the mama');
-
-		$this->assertSame('Not the mama', $response->getReason());
-	}
-
-	public function testCantSet200OtherThanStatusCode()
-	{
-		$response = new DownloadResponse('unit-test.txt', true);
-
-		$this->expectException(HTTPException::class);
-		$response->setStatusCode(999);
+		$this->expectException(DownloadException::class);
+		$response->setStatusCode(200);
 	}
 
 	public function testSetDateRemembersDateInUTC()