fix: cominbation of small fixes

- possible null return
- parameter name mismatch in implementation
- incomplete unit test

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>

3 files changed, 25 insertions, 8 deletions

diff --git a/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php b/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
index 4fabe9fdd1c..450fe134772 100644
--- a/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
@@ -284,9 +284,9 @@ class FilesReportPlugin extends ServerPlugin {
 	 * @param array $filterRules
 	 * @return array array of unique file id results
 	 */
-	protected function processFilterRulesForFileIDs($filterRules) {
+	protected function processFilterRulesForFileIDs(array $filterRules): array {
 		$ns = '{' . $this::NS_OWNCLOUD . '}';
-		$resultFileIds = null;
+		$resultFileIds = [];
 		$circlesIds = [];
 		$favoriteFilter = null;
 		foreach ($filterRules as $filterRule) {
@@ -407,7 +407,7 @@ class FilesReportPlugin extends ServerPlugin {
 	 * @param array $fileIds file ids
 	 * @return Node[] array of Sabre nodes
 	 */
-	public function findNodesByFileIds($rootNode, $fileIds): array {
+	public function findNodesByFileIds(Node $rootNode, array $fileIds): array {
 		if (empty($fileIds)) {
 			return [];
 		}
diff --git a/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
index 7cb2d85fe1f..f1f1cc8b27f 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
@@ -890,12 +890,25 @@ class FilesReportPluginTest extends \Test\TestCase {
 
 		$filesNode1 = $this->createMock(File::class);
 		$filesNode1->expects($this->any())
+			->method('getId')
+			->willReturn(111);
+		$filesNode1->expects($this->any())
 			->method('getSize')
 			->willReturn(12);
 		$filesNode2 = $this->createMock(Folder::class);
 		$filesNode2->expects($this->any())
+			->method('getId')
+			->willReturn(222);
+		$filesNode2->expects($this->any())
 			->method('getSize')
 			->willReturn(10);
+		$filesNode3 = $this->createMock(Folder::class);
+		$filesNode3->expects($this->any())
+			->method('getId')
+			->willReturn(333);
+		$filesNode3->expects($this->any())
+			->method('getSize')
+			->willReturn(33);
 
 		$this->tagManager->expects($this->once())
 			->method('getTagsByIds')
@@ -903,16 +916,20 @@ class FilesReportPluginTest extends \Test\TestCase {
 			->willReturn([$tag1, $tag2]);
 
 		// main assertion: only user visible tags are being passed through.
-		$this->userFolder->expects($this->exactly(1))
+		$this->userFolder->expects($this->exactly(2))
 			->method('searchBySystemTag')
-			->with('FourFiveSix', $this->anything(), $this->anything(), $this->anything());
+			->withConsecutive(['OneTwoThree'], ['FourFiveSix'])
+			->willReturnOnConsecutiveCalls(
+				[$filesNode1, $filesNode2],
+				[$filesNode2, $filesNode3],
+			);
 
 		$rules = [
 			['name' => '{http://owncloud.org/ns}systemtag', 'value' => '123'],
 			['name' => '{http://owncloud.org/ns}systemtag', 'value' => '456'],
 		];
 
-		$this->invokePrivate($this->plugin, 'processFilterRulesForFileNodes', [$rules, null, null]);
+		$this->assertEquals([$filesNode2], array_values($this->invokePrivate($this->plugin, 'processFilterRulesForFileNodes', [$rules, null, null])));
 	}
 
 	public function testProcessFavoriteFilter(): void {
diff --git a/lib/private/Files/Node/Folder.php b/lib/private/Files/Node/Folder.php
index f409f5e63f4..9f84993000f 100644
--- a/lib/private/Files/Node/Folder.php
+++ b/lib/private/Files/Node/Folder.php
@@ -301,8 +301,8 @@ class Folder extends Node implements \OCP\Files\Folder {
 		return $this->search($query);
 	}
 
-	public function searchBySystemTag(string $tag, string $userId, int $limit = 0, int $offset = 0): array {
-		$query = $this->queryFromOperator(new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'systemtag', $tag), $userId, $limit, $offset);
+	public function searchBySystemTag(string $tagName, string $userId, int $limit = 0, int $offset = 0): array {
+		$query = $this->queryFromOperator(new SearchComparison(ISearchComparison::COMPARE_EQUAL, 'systemtag', $tagName), $userId, $limit, $offset);
 		return $this->search($query);
 	}