try

Signed-off-by: nabim777 <[email protected]>

Author: nabim777

tests/lib/Service/OpenProjectAPIServiceTest.php

@@ -760,6 +760,14 @@ private function getOpenProjectAPIService(
 
 		$guestAvatarMock = $this->getMockBuilder(GuestAvatar::class)->disableOriginalConstructor()->getMock();
 
+		$avatarFileMock = $this->createMock('\OCP\Files\SimpleFS\ISimpleFile');
+		$avatarFileMock->method('getContent')
+			->willReturn(\file_get_contents(__DIR__ . "/../fixtures/openproject-icon.jpg"));
+
+		$guestAvatarMock->method('getFile')
+			->with(64)
+			->willReturn($avatarFileMock);
+
 		$avatarManagerMock = $this->getMockBuilder('\OCP\IAvatarManager')
 			->getMock();
 		$avatarManagerMock