chore: add more tests (#3256)

core/stores/cache/cachenode_test.go

@@ -34,8 +34,10 @@ func init() {
 
 func TestCacheNode_DelCache(t *testing.T) {
 	t.Run("del cache", func(t *testing.T) {
-		store := redistest.CreateRedis(t)
-		store.Type = redis.ClusterType
+		r, err := miniredis.Run()
+		assert.NoError(t, err)
+		defer r.Close()
+		store := redis.New(r.Addr(), redis.Cluster())
 
 		cn := cacheNode{
 			rds:            store,
@@ -166,40 +168,99 @@ func TestCacheNode_TakeBadRedis(t *testing.T) {
 }
 
 func TestCacheNode_TakeNotFound(t *testing.T) {
-	store := redistest.CreateRedis(t)
+	t.Run("not found", func(t *testing.T) {
+		store := redistest.CreateRedis(t)
 
-	cn := cacheNode{
-		rds:            store,
-		r:              rand.New(rand.NewSource(time.Now().UnixNano())),
-		barrier:        syncx.NewSingleFlight(),
-		lock:           new(sync.Mutex),
-		unstableExpiry: mathx.NewUnstable(expiryDeviation),
-		stat:           NewStat("any"),
-		errNotFound:    errTestNotFound,
-	}
-	var str string
-	err := cn.Take(&str, "any", func(v any) error {
-		return errTestNotFound
-	})
-	assert.True(t, cn.IsNotFound(err))
-	assert.True(t, cn.IsNotFound(cn.Get("any", &str)))
-	val, err := store.Get("any")
-	assert.Nil(t, err)
-	assert.Equal(t, `*`, val)
+		cn := cacheNode{
+			rds:            store,
+			r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+			barrier:        syncx.NewSingleFlight(),
+			lock:           new(sync.Mutex),
+			unstableExpiry: mathx.NewUnstable(expiryDeviation),
+			stat:           NewStat("any"),
+			errNotFound:    errTestNotFound,
+		}
+		var str string
+		err := cn.Take(&str, "any", func(v any) error {
+			return errTestNotFound
+		})
+		assert.True(t, cn.IsNotFound(err))
+		assert.True(t, cn.IsNotFound(cn.Get("any", &str)))
+		val, err := store.Get("any")
+		assert.Nil(t, err)
+		assert.Equal(t, `*`, val)
 
-	store.Set("any", "*")
-	err = cn.Take(&str, "any", func(v any) error {
-		return nil
-	})
-	assert.True(t, cn.IsNotFound(err))
-	assert.True(t, cn.IsNotFound(cn.Get("any", &str)))
+		store.Set("any", "*")
+		err = cn.Take(&str, "any", func(v any) error {
+			return nil
+		})
+		assert.True(t, cn.IsNotFound(err))
+		assert.True(t, cn.IsNotFound(cn.Get("any", &str)))
 
-	store.Del("any")
-	errDummy := errors.New("dummy")
-	err = cn.Take(&str, "any", func(v any) error {
-		return errDummy
+		store.Del("any")
+		errDummy := errors.New("dummy")
+		err = cn.Take(&str, "any", func(v any) error {
+			return errDummy
+		})
+		assert.Equal(t, errDummy, err)
+	})
+
+	t.Run("not found with redis error", func(t *testing.T) {
+		r, err := miniredis.Run()
+		assert.NoError(t, err)
+		defer r.Close()
+		store, err := redis.NewRedis(redis.RedisConf{
+			Host: r.Addr(),
+			Type: redis.NodeType,
+		})
+		assert.NoError(t, err)
+
+		cn := cacheNode{
+			rds:            store,
+			r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+			barrier:        syncx.NewSingleFlight(),
+			lock:           new(sync.Mutex),
+			unstableExpiry: mathx.NewUnstable(expiryDeviation),
+			stat:           NewStat("any"),
+			errNotFound:    errTestNotFound,
+		}
+		var str string
+		err = cn.Take(&str, "any", func(v any) error {
+			r.SetError("mock error")
+			return errTestNotFound
+		})
+		assert.True(t, cn.IsNotFound(err))
+	})
+}
+
+func TestCacheNode_TakeCtxWithRedisError(t *testing.T) {
+	t.Run("not found with redis error", func(t *testing.T) {
+		r, err := miniredis.Run()
+		assert.NoError(t, err)
+		defer r.Close()
+		store, err := redis.NewRedis(redis.RedisConf{
+			Host: r.Addr(),
+			Type: redis.NodeType,
+		})
+		assert.NoError(t, err)
+
+		cn := cacheNode{
+			rds:            store,
+			r:              rand.New(rand.NewSource(time.Now().UnixNano())),
+			barrier:        syncx.NewSingleFlight(),
+			lock:           new(sync.Mutex),
+			unstableExpiry: mathx.NewUnstable(expiryDeviation),
+			stat:           NewStat("any"),
+			errNotFound:    errTestNotFound,
+		}
+		var str string
+		err = cn.Take(&str, "any", func(v any) error {
+			str = "foo"
+			r.SetError("mock error")
+			return nil
+		})
+		assert.NoError(t, err)
 	})
-	assert.Equal(t, errDummy, err)
 }
 
 func TestCacheNode_TakeNotFoundButChangedByOthers(t *testing.T) {