forked from stathat/consistent
/
example_test.go
111 lines (106 loc) · 2.42 KB
/
example_test.go
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// Copyright (C) 2012 Numerotron Inc.
// Use of this source code is governed by an MIT-style license
// that can be found in the LICENSE file.
package consistent_test
import (
"consistent"
"fmt"
"log"
)
func ExampleNew() {
c := consistent.New()
c.Add("cacheA")
c.Add("cacheB")
c.Add("cacheC")
users := []string{"user_mcnulty", "user_bunk", "user_omar", "user_bunny", "user_stringer"}
for _, u := range users {
server, err := c.Get(u)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s => %s\n", u, server)
}
// Output:
// user_mcnulty => cacheA
// user_bunk => cacheC
// user_omar => cacheC
// user_bunny => cacheA
// user_stringer => cacheB
}
func ExampleAdd() {
c := consistent.New()
c.Add("cacheA")
c.Add("cacheB")
c.Add("cacheC")
users := []string{"user_mcnulty", "user_bunk", "user_omar", "user_bunny", "user_stringer"}
fmt.Println("initial state [A, B, C]")
for _, u := range users {
server, err := c.Get(u)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s => %s\n", u, server)
}
c.Add("cacheD")
c.Add("cacheE")
fmt.Println("\nwith cacheD, cacheE [A, B, C, D, E]")
for _, u := range users {
server, err := c.Get(u)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s => %s\n", u, server)
}
// Output:
// initial state [A, B, C]
// user_mcnulty => cacheA
// user_bunk => cacheC
// user_omar => cacheC
// user_bunny => cacheA
// user_stringer => cacheB
//
// with cacheD, cacheE [A, B, C, D, E]
// user_mcnulty => cacheE
// user_bunk => cacheD
// user_omar => cacheD
// user_bunny => cacheA
// user_stringer => cacheB
}
func ExampleRemove() {
c := consistent.New()
c.Add("cacheA")
c.Add("cacheB")
c.Add("cacheC")
users := []string{"user_mcnulty", "user_bunk", "user_omar", "user_bunny", "user_stringer"}
fmt.Println("initial state [A, B, C]")
for _, u := range users {
server, err := c.Get(u)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s => %s\n", u, server)
}
c.Remove("cacheC")
fmt.Println("\ncacheC removed [A, B]")
for _, u := range users {
server, err := c.Get(u)
if err != nil {
log.Fatal(err)
}
fmt.Printf("%s => %s\n", u, server)
}
// Output:
// initial state [A, B, C]
// user_mcnulty => cacheA
// user_bunk => cacheC
// user_omar => cacheC
// user_bunny => cacheA
// user_stringer => cacheB
//
// cacheC removed [A, B]
// user_mcnulty => cacheA
// user_bunk => cacheA
// user_omar => cacheA
// user_bunny => cacheA
// user_stringer => cacheB
}