redis/cluster_client_test.go

84 lines
2.4 KiB
Go

package redis
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
// GetSlot returns the cached slot addresses
func (c *ClusterClient) GetSlot(pos int) []string {
c.slotsMx.RLock()
defer c.slotsMx.RUnlock()
return c.slots[pos]
}
// SwapSlot swaps a slot's master/slave address
// for testing MOVED redirects
func (c *ClusterClient) SwapSlot(pos int) []string {
c.slotsMx.Lock()
defer c.slotsMx.Unlock()
c.slots[pos][0], c.slots[pos][1] = c.slots[pos][1], c.slots[pos][0]
return c.slots[pos]
}
var _ = Describe("ClusterClient", func() {
var subject *ClusterClient
var populate = func() {
subject.setSlots([]ClusterSlotInfo{
{0, 4095, []string{"127.0.0.1:7000", "127.0.0.1:7004"}},
{12288, 16383, []string{"127.0.0.1:7003", "127.0.0.1:7007"}},
{4096, 8191, []string{"127.0.0.1:7001", "127.0.0.1:7005"}},
{8192, 12287, []string{"127.0.0.1:7002", "127.0.0.1:7006"}},
})
}
BeforeEach(func() {
var err error
subject = NewClusterClient(&ClusterOptions{
Addrs: []string{"127.0.0.1:6379", "127.0.0.1:7003", "127.0.0.1:7006"},
})
Expect(err).NotTo(HaveOccurred())
})
AfterEach(func() {
subject.Close()
})
It("should initialize", func() {
Expect(subject.addrs).To(HaveLen(3))
Expect(subject._reload).To(Equal(uint32(1)))
})
It("should update slots cache", func() {
populate()
Expect(subject.slots[0]).To(Equal([]string{"127.0.0.1:7000", "127.0.0.1:7004"}))
Expect(subject.slots[4095]).To(Equal([]string{"127.0.0.1:7000", "127.0.0.1:7004"}))
Expect(subject.slots[4096]).To(Equal([]string{"127.0.0.1:7001", "127.0.0.1:7005"}))
Expect(subject.slots[8191]).To(Equal([]string{"127.0.0.1:7001", "127.0.0.1:7005"}))
Expect(subject.slots[8192]).To(Equal([]string{"127.0.0.1:7002", "127.0.0.1:7006"}))
Expect(subject.slots[12287]).To(Equal([]string{"127.0.0.1:7002", "127.0.0.1:7006"}))
Expect(subject.slots[12288]).To(Equal([]string{"127.0.0.1:7003", "127.0.0.1:7007"}))
Expect(subject.slots[16383]).To(Equal([]string{"127.0.0.1:7003", "127.0.0.1:7007"}))
Expect(subject.addrs).To(Equal([]string{
"127.0.0.1:6379",
"127.0.0.1:7003",
"127.0.0.1:7006",
"127.0.0.1:7000",
"127.0.0.1:7004",
"127.0.0.1:7007",
"127.0.0.1:7001",
"127.0.0.1:7005",
"127.0.0.1:7002",
}))
})
It("should check if reload is due", func() {
subject._reload = 0
Expect(subject._reload).To(Equal(uint32(0)))
subject.scheduleReload()
Expect(subject._reload).To(Equal(uint32(1)))
})
})