micro/selector/tests.go
ben-toogood 6337c92cd0
selector: new selector interface with random & roundrobin implementation (#1761)
* selector: implement new selector interface plus random & roundrobin implementations

* selector/roundrobin: remove unused consts

* router: add close method to interface

* selector/roundrobin: fix concurrent map iteration and map write

* selector: replace variadic argument on Select
2020-06-30 14:54:38 +01:00

46 lines
1.3 KiB
Go

package selector
import (
"testing"
"github.com/micro/go-micro/v2/router"
"github.com/stretchr/testify/assert"
)
// Tests runs all the tests against a selector to ensure the implementations are consistent
func Tests(t *testing.T, s Selector) {
r1 := &router.Route{Service: "go.micro.service.foo", Address: "127.0.0.1:8000"}
r2 := &router.Route{Service: "go.micro.service.foo", Address: "127.0.0.1:8001"}
t.Run("Select", func(t *testing.T) {
t.Run("NoRoutes", func(t *testing.T) {
srv, err := s.Select([]*router.Route{})
assert.Nil(t, srv, "Route should be nil")
assert.Equal(t, ErrNoneAvailable, err, "Expected error to be none available")
})
t.Run("OneRoute", func(t *testing.T) {
srv, err := s.Select([]*router.Route{r1})
assert.Nil(t, err, "Error should be nil")
assert.Equal(t, r1, srv, "Expected the route to be returned")
})
t.Run("MultipleRoutes", func(t *testing.T) {
srv, err := s.Select([]*router.Route{r1, r2})
assert.Nil(t, err, "Error should be nil")
if srv.Address != r1.Address && srv.Address != r2.Address {
t.Errorf("Expected the route to be one of the inputs")
}
})
})
t.Run("Record", func(t *testing.T) {
err := s.Record(r1, nil)
assert.Nil(t, err, "Expected the error to be nil")
})
t.Run("String", func(t *testing.T) {
assert.NotEmpty(t, s.String(), "String returned a blank string")
})
}