Added support for CF.DEL command (#1080)

Co-authored-by: Vladyslav Vildanov <vladyslavvildanov@Vladyslav-Vildanov-MacBook-Pro.local>

src/ClientContextInterface.php

@@ -62,6 +62,7 @@ use Predis\Command\CommandInterface;
  * @method $this cfadd(string $key, $item)
  * @method $this cfaddnx(string $key, $item)
  * @method $this cfcount(string $key, $item)
+ * @method $this cfdel(string $key, $item)
  * @method $this cfexists(string $key, $item)
  * @method $this cfmexists(string $key, ...$item)
  * @method $this cfinfo(string $key)

src/ClientInterface.php

@@ -71,6 +71,7 @@ use Predis\Response\Status;
  * @method int               cfadd(string $key, $item)
  * @method int               cfaddnx(string $key, $item)
  * @method int               cfcount(string $key, $item)
+ * @method int               cfdel(string $key, $item)
  * @method int               cfexists(string $key, $item)
  * @method int               cfmexists(string $key, ...$item)
  * @method array             cfinfo(string $key)

src/Command/Redis/CuckooFilter/CFDEL.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) 2009-2020 Daniele Alessandri
+ * (c) 2021-2023 Till Krüss
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Command\Redis\CuckooFilter;
+
+use Predis\Command\Command as RedisCommand;
+
+/**
+ * @see https://redis.io/commands/cf.del/
+ *
+ * Deletes an item once from the filter.
+ * If the item exists only once, it will be removed from the filter.
+ * If the item was added multiple times, it will still be present.
+ */
+class CFDEL extends RedisCommand
+{
+    public function getId()
+    {
+        return 'CF.DEL';
+    }
+}

tests/Predis/Command/Redis/CuckooFilter/CFDEL_Test.php

@@ -0,0 +1,98 @@
+<?php
+
+/*
+ * This file is part of the Predis package.
+ *
+ * (c) 2009-2020 Daniele Alessandri
+ * (c) 2021-2023 Till Krüss
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Predis\Command\Redis\CuckooFilter;
+
+use Predis\Command\Redis\PredisCommandTestCase;
+use Predis\Response\ServerException;
+
+class CFDEL_Test extends PredisCommandTestCase
+{
+    /**
+     * {@inheritDoc}
+     */
+    protected function getExpectedCommand(): string
+    {
+        return CFDEL::class;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    protected function getExpectedId(): string
+    {
+        return 'CFDEL';
+    }
+
+    /**
+     * @group disconnected
+     */
+    public function testFilterArguments(): void
+    {
+        $actualArguments = ['key', 'item'];
+        $expectedArguments = ['key', 'item'];
+
+        $command = $this->getCommand();
+        $command->setArguments($actualArguments);
+
+        $this->assertSameValues($expectedArguments, $command->getArguments());
+    }
+
+    /**
+     * @group disconnected
+     */
+    public function testParseResponse(): void
+    {
+        $this->assertSame(1, $this->getCommand()->parseResponse(1));
+    }
+
+    /**
+     * @group connected
+     * @return void
+     * @requiresRedisVersion >= 7.0.0
+     */
+    public function testDeletesItemFromGivenCuckooFilter(): void
+    {
+        $redis = $this->getClient();
+
+        $redis->cfadd('key', 'item');
+        $singleItemResponse = $redis->cfdel('key', 'item');
+
+        $this->assertSame(1, $singleItemResponse);
+        $this->assertSame(0, $redis->cfexists('key', 'item'));
+
+        $redis->cfadd('key', 'item');
+        $redis->cfadd('key', 'item');
+
+        $multipleItemsResponse = $redis->cfdel('key', 'item');
+        $this->assertSame(1, $multipleItemsResponse);
+        $this->assertSame(1, $redis->cfexists('key', 'item'));
+
+        $nonExistingItemResponse = $redis->cfdel('key', 'non_existing_item');
+        $this->assertSame(0, $nonExistingItemResponse);
+    }
+
+    /**
+     * @group connected
+     * @return void
+     * @requiresRedisVersion >= 7.0.0
+     */
+    public function testDeleteThrowsExceptionOnNonExistingFilterKey(): void
+    {
+        $redis = $this->getClient();
+
+        $this->expectException(ServerException::class);
+        $this->expectExceptionMessage('Not found');
+
+        $redis->cfdel('non_existing_key', 'item');
+    }
+}