test(phpunit): fix failing tests

Signed-off-by: Jonas <jonas@freesources.org>

Author: mejo-

tests/unit/Service/Importer/BoardImportServiceTest.php

@@ -29,6 +29,7 @@
 use OCA\Deck\Db\Assignment;
 use OCA\Deck\Db\AssignmentMapper;
 use OCA\Deck\Db\AttachmentMapper;
+use OCA\Deck\Db\Board;
 use OCA\Deck\Db\BoardMapper;
 use OCA\Deck\Db\Card;
 use OCA\Deck\Db\CardMapper;
@@ -156,6 +157,12 @@ public function testImportSuccess() {
 		$this->userManager->method('userExists')
 			->willReturn(true);
 
+		$board = new Board();
+		$board->setOwner('admin');
+		$this->trelloJsonService
+			->method('getBoard')
+			->willReturn($board);
+
 		$this->boardMapper
 			->expects($this->once())
 			->method('insert');

tests/unit/Service/PermissionServiceTest.php

@@ -363,7 +363,7 @@ public function testFindUsers() {
 		$this->userManager->expects($this->any())
 			->method('userExists')
 			->withConsecutive(['user1'], ['user2'])
-			->willReturnOnConsecutiveCalls($user1, $user2);
+			->willReturnOnConsecutiveCalls(true, true);
 
 		$group = $this->createMock(IGroup::class);
 		$group->expects($this->once())