|
| 1 | +package cache |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "encoding/json" |
| 6 | + "testing" |
| 7 | + "time" |
| 8 | + |
| 9 | + "github.com/redis/go-redis/v9" |
| 10 | + "github.com/stretchr/testify/assert" |
| 11 | +) |
| 12 | + |
| 13 | +func setupRedis() *RedisCache { |
| 14 | + client := redis.NewClient(&redis.Options{ |
| 15 | + Addr: "localhost:6379", // 真实 Redis 服务器地址 |
| 16 | + Password: "", // 如果 Redis 设置了密码,在这里填入 |
| 17 | + DB: 0, // 选择 Redis DB |
| 18 | + }) |
| 19 | + return NewRedisCache(client) |
| 20 | +} |
| 21 | + |
| 22 | +func TestRedisCache_Get(t *testing.T) { |
| 23 | + cache := setupRedis() |
| 24 | + ctx := context.Background() |
| 25 | + |
| 26 | + // 先写入数据 |
| 27 | + err := cache.Set(ctx, "key1", "value1", 10*time.Second) |
| 28 | + assert.NoError(t, err) |
| 29 | + |
| 30 | + // 测试 key 存在时返回值 |
| 31 | + val, err := cache.Get(ctx, "key1") |
| 32 | + assert.NoError(t, err) |
| 33 | + assert.Equal(t, []byte("value1"), val) |
| 34 | + |
| 35 | + // 测试 key 不存在时返回 nil |
| 36 | + val, err = cache.Get(ctx, "key2") |
| 37 | + assert.NoError(t, err) |
| 38 | + assert.Nil(t, val) |
| 39 | +} |
| 40 | + |
| 41 | +func TestRedisCache_Set(t *testing.T) { |
| 42 | + cache := setupRedis() |
| 43 | + ctx := context.Background() |
| 44 | + |
| 45 | + err := cache.Set(ctx, "key1", "value1", 10*time.Second) |
| 46 | + assert.NoError(t, err) |
| 47 | + |
| 48 | + // 验证数据是否真的被写入 Redis |
| 49 | + val, err := cache.Get(ctx, "key1") |
| 50 | + assert.NoError(t, err) |
| 51 | + assert.Equal(t, []byte("value1"), val) |
| 52 | +} |
| 53 | + |
| 54 | +func TestRedisCache_SetObject(t *testing.T) { |
| 55 | + cache := setupRedis() |
| 56 | + ctx := context.Background() |
| 57 | + |
| 58 | + // 定义一个对象 |
| 59 | + type User struct { |
| 60 | + ID int `json:"id"` |
| 61 | + Name string `json:"name"` |
| 62 | + } |
| 63 | + |
| 64 | + user := User{ID: 1, Name: "Alice"} |
| 65 | + |
| 66 | + // 序列化为 JSON |
| 67 | + userJSON, err := json.Marshal(user) |
| 68 | + assert.NoError(t, err) |
| 69 | + |
| 70 | + // 存入 Redis |
| 71 | + err = cache.Set(ctx, "user:1", userJSON, 10*time.Second) |
| 72 | + assert.NoError(t, err) |
| 73 | + |
| 74 | + // 从 Redis 获取 |
| 75 | + val, err := cache.Get(ctx, "user:1") |
| 76 | + assert.NoError(t, err) |
| 77 | + |
| 78 | + // 反序列化 JSON |
| 79 | + var retrievedUser User |
| 80 | + err = json.Unmarshal(val, &retrievedUser) |
| 81 | + assert.NoError(t, err) |
| 82 | + |
| 83 | + // 验证数据 |
| 84 | + assert.Equal(t, user, retrievedUser) |
| 85 | +} |
| 86 | + |
| 87 | +func TestRedisCache_Delete(t *testing.T) { |
| 88 | + cache := setupRedis() |
| 89 | + ctx := context.Background() |
| 90 | + |
| 91 | + // 先存入数据 |
| 92 | + err := cache.Set(ctx, "key1", "value1", 10*time.Second) |
| 93 | + assert.NoError(t, err) |
| 94 | + |
| 95 | + // 删除数据 |
| 96 | + err = cache.Delete(ctx, "key1") |
| 97 | + assert.NoError(t, err) |
| 98 | + |
| 99 | + // 验证数据是否被删除 |
| 100 | + val, err := cache.Get(ctx, "key1") |
| 101 | + assert.NoError(t, err) |
| 102 | + assert.Nil(t, val) |
| 103 | +} |
| 104 | + |
| 105 | +func TestRedisCache_Exists(t *testing.T) { |
| 106 | + cache := setupRedis() |
| 107 | + ctx := context.Background() |
| 108 | + |
| 109 | + // 先存入数据 |
| 110 | + err := cache.Set(ctx, "key1", "value1", 10*time.Second) |
| 111 | + assert.NoError(t, err) |
| 112 | + |
| 113 | + // 测试 key 是否存在 |
| 114 | + exists, err := cache.Exists(ctx, "key1") |
| 115 | + assert.NoError(t, err) |
| 116 | + assert.True(t, exists) |
| 117 | + |
| 118 | + // 测试 key 不存在 |
| 119 | + exists, err = cache.Exists(ctx, "key2") |
| 120 | + assert.NoError(t, err) |
| 121 | + assert.False(t, exists) |
| 122 | +} |
| 123 | + |
| 124 | +func TestRedisCache_Increment(t *testing.T) { |
| 125 | + cache := setupRedis() |
| 126 | + ctx := context.Background() |
| 127 | + |
| 128 | + // 先删除 key 确保测试环境干净 |
| 129 | + cache.Delete(ctx, "counter") |
| 130 | + |
| 131 | + // 递增 |
| 132 | + val, err := cache.Increment(ctx, "counter", 1) |
| 133 | + assert.NoError(t, err) |
| 134 | + assert.Equal(t, int64(1), val) |
| 135 | +} |
| 136 | + |
| 137 | +func TestRedisCache_Decrement(t *testing.T) { |
| 138 | + cache := setupRedis() |
| 139 | + ctx := context.Background() |
| 140 | + |
| 141 | + // 先确保计数器存在 |
| 142 | + cache.Set(ctx, "counter", 10, 0) |
| 143 | + |
| 144 | + // 递减 |
| 145 | + val, err := cache.Decrement(ctx, "counter", 1) |
| 146 | + assert.NoError(t, err) |
| 147 | + assert.Equal(t, int64(9), val) |
| 148 | +} |
| 149 | + |
| 150 | +func TestRedisCache_Expire(t *testing.T) { |
| 151 | + cache := setupRedis() |
| 152 | + ctx := context.Background() |
| 153 | + |
| 154 | + // 先存入数据 |
| 155 | + err := cache.Set(ctx, "key1", "value1", 0) |
| 156 | + assert.NoError(t, err) |
| 157 | + |
| 158 | + // 设置过期时间 |
| 159 | + err = cache.Expire(ctx, "key1", 2*time.Second) |
| 160 | + assert.NoError(t, err) |
| 161 | + |
| 162 | + // 等待 3 秒,确保 key 过期 |
| 163 | + time.Sleep(3 * time.Second) |
| 164 | + |
| 165 | + // 验证 key 是否已经过期 |
| 166 | + val, err := cache.Get(ctx, "key1") |
| 167 | + assert.NoError(t, err) |
| 168 | + assert.Nil(t, val) |
| 169 | +} |
0 commit comments