package redis_test import ( "gopkg.in/redis.v5" . "github.com/onsi/ginkgo" . "github.com/onsi/gomega" ) var _ = Describe("pipelining", func() { var client *redis.Client var pipe *redis.Pipeline BeforeEach(func() { client = redis.NewClient(redisOptions()) Expect(client.FlushDb().Err()).NotTo(HaveOccurred()) }) AfterEach(func() { Expect(client.Close()).NotTo(HaveOccurred()) }) It("supports block style", func() { var get *redis.StringCmd cmds, err := client.Pipelined(func(pipe *redis.Pipeline) error { get = pipe.Get("foo") return nil }) Expect(err).To(Equal(redis.Nil)) Expect(cmds).To(HaveLen(1)) Expect(cmds[0]).To(Equal(get)) Expect(get.Err()).To(Equal(redis.Nil)) Expect(get.Val()).To(Equal("")) }) assertPipeline := func() { It("returns an error when there are no commands", func() { _, err := pipe.Exec() Expect(err).To(MatchError("redis: pipeline is empty")) }) It("discards queued commands", func() { pipe.Get("key") pipe.Discard() _, err := pipe.Exec() Expect(err).To(MatchError("redis: pipeline is empty")) }) It("handles val/err", func() { err := client.Set("key", "value", 0).Err() Expect(err).NotTo(HaveOccurred()) get := pipe.Get("key") cmds, err := pipe.Exec() Expect(err).NotTo(HaveOccurred()) Expect(cmds).To(HaveLen(1)) val, err := get.Result() Expect(err).NotTo(HaveOccurred()) Expect(val).To(Equal("value")) }) } Describe("Pipeline", func() { BeforeEach(func() { pipe = client.Pipeline() }) assertPipeline() }) Describe("TxPipeline", func() { BeforeEach(func() { pipe = client.TxPipeline() }) assertPipeline() }) })