gigaparsec/test/generator/gen.go

21 lines
547 B
Go

package generator
import (
"errors"
"pgregory.net/rapid"
)
// Error returns a new error created by calling [errors.New] with a random string.
func Error() *rapid.Generator[error] {
return rapid.Map(rapid.String(), errors.New)
}
// SliceOfNZero returns a generator that makes slices of the zero value of T.
// The range of slice lengths are determined as in [rapid.SliceOfN].
func SliceOfNZero[T any](minLen, maxLen int) *rapid.Generator[[]T] {
return rapid.Map(rapid.IntRange(minLen, maxLen), func(n int) []T {
return make([]T, n)
})
}