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Merge pull request #156 from go-redis/fix/SRandMemberN 

Add SRandMemberN. Fixes #155.
This commit is contained in:
Vladimir Mihailenco 2015-08-26 09:55:17 +03:00
parent fd51850c85 9ead45f9e9
commit 5dfdaafe04
2 changed files with 25 additions and 13 deletions
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8
commands.go
View File

@ -944,12 +944,20 @@ func (c *commandable) SPop(key string) *StringCmd {
return cmd
}
// Redis `SRANDMEMBER key` command.
func (c *commandable) SRandMember(key string) *StringCmd {
cmd := NewStringCmd("SRANDMEMBER", key)
c.Process(cmd)
return cmd
}
// Redis `SRANDMEMBER key count` command.
func (c *commandable) SRandMemberN(key string, count int64) *StringSliceCmd {
cmd := NewStringSliceCmd("SRANDMEMBER", key, formatInt(count))
c.Process(cmd)
return cmd
}
func (c *commandable) SRem(key string, members ...string) *IntCmd {
args := make([]interface{}, 2+len(members))
args[0] = "SREM"

30
commands_test.go
View File

@ -1733,21 +1733,25 @@ var _ = Describe("Commands", func() {
Expect(sMembers.Val()).To(HaveLen(2))
})
It("should SRandMember", func() {
sAdd := client.SAdd("set", "one")
Expect(sAdd.Err()).NotTo(HaveOccurred())
sAdd = client.SAdd("set", "two")
Expect(sAdd.Err()).NotTo(HaveOccurred())
sAdd = client.SAdd("set", "three")
Expect(sAdd.Err()).NotTo(HaveOccurred())
It("should SRandMember and SRandMemberN", func() {
err := client.SAdd("set", "one").Err()
Expect(err).NotTo(HaveOccurred())
err = client.SAdd("set", "two").Err()
Expect(err).NotTo(HaveOccurred())
err = client.SAdd("set", "three").Err()
Expect(err).NotTo(HaveOccurred())
sRandMember := client.SRandMember("set")
Expect(sRandMember.Err()).NotTo(HaveOccurred())
Expect(sRandMember.Val()).NotTo(Equal(""))
members, err := client.SMembers("set").Result()
Expect(err).NotTo(HaveOccurred())
Expect(members).To(HaveLen(3))
sMembers := client.SMembers("set")
Expect(sMembers.Err()).NotTo(HaveOccurred())
Expect(sMembers.Val()).To(HaveLen(3))
member, err := client.SRandMember("set").Result()
Expect(err).NotTo(HaveOccurred())
Expect(member).NotTo(Equal(""))
members, err = client.SRandMemberN("set", 2).Result()
Expect(err).NotTo(HaveOccurred())
Expect(members).To(HaveLen(2))
})
It("should SRem", func() {