gonads/option_test.go

25 lines
437 B
Go

package gonads
import (
"testing"
)
func TestOption(t *testing.T) {
o := NewOption[string]()
val, err := o.Take()
if err == nil {
t.Fatalf("[unexpected] wanted no value out of Option[T], got: %v", val)
}
o.Set("hello friendos")
_, err = o.Take()
if err != nil {
t.Fatalf("[unexpected] wanted no value out of Option[T], got: %v", err)
}
o.Clear()
if o.IsSome() {
t.Fatal("Option should have none, but has some")
}
}