Not able to generate slice of pointers
Higan opened this issue · comments
Hi,
I got an error when trying to generating a slice of pointers using the code below:
package main
import (
"github.com/leanovate/gopter"
"github.com/leanovate/gopter/gen"
"github.com/leanovate/gopter/prop"
"reflect"
)
type Empty struct {
ID uint
}
func main() {
properties := gopter.NewProperties(nil)
properties.Property("just test pointer", prop.ForAll(
func(nodes []*Empty) bool {
return true
},
gen.SliceOf(gen.Struct(reflect.TypeOf(&Empty{}), map[string]gopter.Gen{
"ID": gen.UInt(),
})),
))
properties.Run(gopter.ConsoleReporter(false))
}
The error was:
! just test pointer: Error on property evaluation after 0 passed tests:
Check paniced: reflect: Call using []main.Empty as type []*main.Empty
ARG_0: []
I think reflect.TypeOf(&Empty{})
returns *main.Empty
instead of main.Empty
, but according to the error messages, the generated type is []main.Empty
; so I just wonder whether there's something wrong with my code here.
At the moment you have to use "gen.StructPtr" instead of "gen.Struct" to generate pointers of structs rather than the struct itself.
I'm not sure if it would be a good idea to change the behavior of "gen.Struct" depending on the type you put in.