Improve the test coverage

cache/redis/redis_additional_test.go

@@ -0,0 +1,50 @@
+package libpack_cache_redis
+
+import (
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis/v2"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestRedisClear(t *testing.T) {
+	// Create a mock Redis server
+	s, err := miniredis.Run()
+	if err != nil {
+		t.Fatalf("Failed to create mock redis server: %v", err)
+	}
+	defer s.Close()
+
+	// Create a Redis client
+	redisConfig := New(&RedisClientConfig{
+		RedisServer:   s.Addr(),
+		RedisPassword: "",
+		RedisDB:       0,
+	})
+
+	// Add some test data
+	ttl := time.Duration(60) * time.Second
+	redisConfig.Set("key1", []byte("value1"), ttl)
+	redisConfig.Set("key2", []byte("value2"), ttl)
+	redisConfig.Set("key3", []byte("value3"), ttl)
+
+	// Verify keys exist
+	count := redisConfig.CountQueries()
+	assert.Equal(t, int64(3), count, "Expected 3 keys before clearing cache")
+
+	// Clear the cache
+	redisConfig.Clear()
+
+	// Verify all keys are gone
+	count = redisConfig.CountQueries()
+	assert.Equal(t, int64(0), count, "Expected 0 keys after clearing cache")
+
+	// Verify individual keys are gone
+	_, found := redisConfig.Get("key1")
+	assert.False(t, found, "Key1 should be deleted after Clear")
+	_, found = redisConfig.Get("key2")
+	assert.False(t, found, "Key2 should be deleted after Clear")
+	_, found = redisConfig.Get("key3")
+	assert.False(t, found, "Key3 should be deleted after Clear")
+}