micro/selector/roundrobin/roundrobin_test.go
Asim Aslam 50ec6c748f
cleanup client/selector/lookup (#1937)
* cleanup client/selector/lookup

* add mdns router, remove registry from client

* fix roundtripper

* remove comment

* fix compile issue

* fix mucp test

* fix api router
2020-08-17 22:44:45 +01:00

41 lines
1022 B
Go

package roundrobin
import (
"testing"
"github.com/micro/go-micro/v3/selector"
"github.com/stretchr/testify/assert"
)
func TestRoundRobin(t *testing.T) {
selector.Tests(t, NewSelector())
r1 := "127.0.0.1:8000"
r2 := "127.0.0.1:8001"
r3 := "127.0.0.1:8002"
sel := NewSelector()
// By passing r1 and r2 first, it forces a set sequence of (r1 => r2 => r3 => r1)
next, err := sel.Select([]string{r1})
r := next()
assert.Nil(t, err, "Error should be nil")
assert.Equal(t, r1, r, "Expected route to be r1")
next, err = sel.Select([]string{r2})
r = next()
assert.Nil(t, err, "Error should be nil")
assert.Equal(t, r2, r, "Expected route to be r2")
// Because r1 and r2 have been recently called, r3 should be chosen
next, err = sel.Select([]string{r1, r2, r3})
n1, n2, n3 := next(), next(), next()
assert.Nil(t, err, "Error should be nil")
assert.Equal(t, r1, n1, "Expected route to be r3")
assert.Equal(t, r2, n2, "Expected route to be r3")
assert.Equal(t, r3, n3, "Expected route to be r3")
}