Add test for count method in MongoDB integration

src/Client.php

@@ -707,10 +707,34 @@ public function delete(string $collection, array $filters = [], int $limit = 1,
      */
     public function count(string $collection, array $filters, array $options): int
     {
-        $result = $this->find($collection, $filters, $options);
-        $list = $result->cursor->firstBatch;
-
-        return \count($list);
+
+        // Use MongoDB's native count command with the working format instad of running find and count the results
+        $command = [
+            self::COMMAND_COUNT => $collection,
+            'query' => $this->toObject($filters),
+        ];
+
+        // Add limit if specified
+        if (isset($options['limit'])) {
+            $command['limit'] = (int)$options['limit'];
+        }
+
+        // Add skip if specified
+        if (isset($options['skip'])) {
+            $command['skip'] = (int)$options['skip'];
+        }
+
+        // Add maxTimeMS if specified
+        if (isset($options['maxTimeMS'])) {
+            $command['maxTimeMS'] = (int)$options['maxTimeMS'];
+        }
+
+        try {
+        $result = $this->query($command);
+          return (int)$result;
+        } catch (Exception $e) {
+            return 0;
+        }
     }
 
     /**

tests/MongoTest.php

@@ -261,4 +261,75 @@ public function testUpsert()
         self::assertEquals('USA', $documents[1]->country);
         self::assertEquals('English', $documents[1]->language);
     }
+
+    public function testCountMethod()
+    {
+
+        $collectionName = 'count_test';
+        $this->getDatabase()->createCollection($collectionName);
+
+        $documents = [];
+        for ($i = 1; $i <= 30; $i++) {
+            $documents[] = [
+                'name' => "Document {$i}",
+                'number' => $i,
+                'category' => 'test',
+                'created_at' => new \DateTime()
+            ];
+        }
+
+        $this->getDatabase()->insertMany($collectionName, $documents);
+
+        $total = $this->getDatabase()->count($collectionName, [], []);
+        self::assertEquals(30, $total);
+
+        // Test count with filter (should be 1 for each specific number)
+        $total = $this->getDatabase()->count($collectionName, ['number' => 15], []);
+        self::assertEquals(1, $total);
+
+        // Test count with range filter (should be 10 for numbers 1-10)
+        $total = $this->getDatabase()->count($collectionName, ['number' => ['$lte' => 10]], []);
+        self::assertEquals(10, $total);
+
+        // Test count with limit (should be 5 for first 5 documents)
+        $total = $this->getDatabase()->count($collectionName, [], ['limit' => 5]);
+        self::assertEquals(5, $total);
+
+       // Test count with filter and limit (should be 3 for first 3 documents with number <= 10)
+        $total = $this->getDatabase()->count($collectionName, ['number' => ['$lte' => 10]], ['limit' => 3]);
+        self::assertEquals(3, $total);
+
+        // Test aggregation count - total documents
+        $aggregationResult = $this->getDatabase()->aggregate($collectionName, [
+            ['$count' => 'total']
+        ]);
+        self::assertEquals(30, $aggregationResult->cursor->firstBatch[0]->total);
+
+        // Test aggregation count with filter
+        $filteredAggregationResult = $this->getDatabase()->aggregate($collectionName, [
+            ['$match' => ['number' => ['$lte' => 10]]],
+            ['$count' => 'total']
+        ]);
+        self::assertEquals(10, $filteredAggregationResult->cursor->firstBatch[0]->total);
+
+        // Test aggregation count with limit
+        $limitedAggregationResult = $this->getDatabase()->aggregate($collectionName, [
+            ['$limit' => 7],
+            ['$count' => 'total']
+        ]);
+        self::assertEquals(7, $limitedAggregationResult->cursor->firstBatch[0]->total);
+
+        // Test aggregation count with group by
+        $groupedAggregationResult = $this->getDatabase()->aggregate($collectionName, [
+            ['$group' => [
+                '_id' => '$category', // Group by category
+                'count' => ['$sum' => 1] // Count of documents in the group
+            ]]
+        ]);
+        self::assertEquals(30, $groupedAggregationResult->cursor->firstBatch[0]->count);
+        self::assertEquals('test', $groupedAggregationResult->cursor->firstBatch[0]->_id);
+
+
+        $this->getDatabase()->dropCollection($collectionName);
+    }
 }