micro/selector/tests.go

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package selector
import (
"testing"
)
// Tests runs all the tests against a selector to ensure the implementations are consistent
func Tests(t *testing.T, s Selector) {
r1 := "127.0.0.1:8000"
r2 := "127.0.0.1:8001"
t.Run("Select", func(t *testing.T) {
t.Run("NoRoutes", func(t *testing.T) {
_, err := s.Select([]string{})
if err != ErrNoneAvailable {
t.Fatal("Expected error to be none available")
}
})
t.Run("OneRoute", func(t *testing.T) {
next, err := s.Select([]string{r1})
if err != nil {
t.Fatal("Error should be nil")
}
srv := next()
if r1 != srv {
t.Fatal("Expected the route to be returned")
}
})
t.Run("MultipleRoutes", func(t *testing.T) {
next, err := s.Select([]string{r1, r2})
if err != nil {
t.Fatal("Error should be nil")
}
srv := next()
if srv != r1 && srv != r2 {
t.Errorf("Expected the route to be one of the inputs")
}
})
})
t.Run("Record", func(t *testing.T) {
if err := s.Record(r1, nil); err != nil {
t.Fatal("Expected the error to be nil")
}
})
t.Run("String", func(t *testing.T) {
if s.String() == "" {
t.Fatal("String returned a blank string")
}
})
}