You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
55 lines
887 B
Go
55 lines
887 B
Go
package resolver
|
|
|
|
import (
|
|
"strconv"
|
|
"testing"
|
|
|
|
"zero/core/mathx"
|
|
|
|
"github.com/stretchr/testify/assert"
|
|
)
|
|
|
|
func TestSubset(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
set int
|
|
sub int
|
|
}{
|
|
{
|
|
name: "more vals to subset",
|
|
set: 100,
|
|
sub: 36,
|
|
},
|
|
{
|
|
name: "less vals to subset",
|
|
set: 100,
|
|
sub: 200,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.name, func(t *testing.T) {
|
|
var vals []string
|
|
for i := 0; i < test.set; i++ {
|
|
vals = append(vals, strconv.Itoa(i))
|
|
}
|
|
|
|
m := make(map[interface{}]int)
|
|
for i := 0; i < 1000; i++ {
|
|
set := subset(append([]string(nil), vals...), test.sub)
|
|
if test.sub < test.set {
|
|
assert.Equal(t, test.sub, len(set))
|
|
} else {
|
|
assert.Equal(t, test.set, len(set))
|
|
}
|
|
|
|
for _, val := range set {
|
|
m[val]++
|
|
}
|
|
}
|
|
|
|
assert.True(t, mathx.CalcEntropy(m) > 0.95)
|
|
})
|
|
}
|
|
}
|