dendrite/clientapi/routing/directory_public_test.go

49 lines
973 B
Go

package routing
import (
"reflect"
"testing"
)
func TestSliceInto(t *testing.T) {
slice := []string{"a", "b", "c", "d", "e", "f", "g"}
limit := int16(3)
testCases := []struct {
since int64
wantPrev int
wantNext int
wantSubset []string
}{
{
since: 0,
wantPrev: -1,
wantNext: 3,
wantSubset: slice[0:3],
},
{
since: 3,
wantPrev: 0,
wantNext: 6,
wantSubset: slice[3:6],
},
{
since: 6,
wantPrev: 3,
wantNext: -1,
wantSubset: slice[6:7],
},
}
for _, tc := range testCases {
subset, prev, next := sliceInto(slice, tc.since, limit)
if !reflect.DeepEqual(subset, tc.wantSubset) {
t.Errorf("returned subset is wrong, got %v want %v", subset, tc.wantSubset)
}
if prev != tc.wantPrev {
t.Errorf("returned prev is wrong, got %d want %d", prev, tc.wantPrev)
}
if next != tc.wantNext {
t.Errorf("returned next is wrong, got %d want %d", next, tc.wantNext)
}
}
}