prometheus/pages/page_test.go

70 lines
1.6 KiB
Go

package pages
import (
"reflect"
"sort"
"testing"
"testing/quick"
)
// Ensure that the page type can be returned in human readable format.
func TestPage_typ(t *testing.T) {
if typ := (&page{flags: pageFlagData}).typ(); typ != "data" {
t.Fatalf("exp=branch; got=%v", typ)
}
if typ := (&page{flags: pageFlagMeta}).typ(); typ != "meta" {
t.Fatalf("exp=meta; got=%v", typ)
}
if typ := (&page{flags: pageFlagFreelist}).typ(); typ != "freelist" {
t.Fatalf("exp=freelist; got=%v", typ)
}
if typ := (&page{flags: 20000}).typ(); typ != "unknown<4e20>" {
t.Fatalf("exp=unknown<4e20>; got=%v", typ)
}
}
// Ensure that the hexdump debugging function doesn't blow up.
func TestPage_dump(t *testing.T) {
(&page{id: 256}).hexdump(16)
}
func TestPgids_merge(t *testing.T) {
a := pgids{4, 5, 6, 10, 11, 12, 13, 27}
b := pgids{1, 3, 8, 9, 25, 30}
c := a.merge(b)
if !reflect.DeepEqual(c, pgids{1, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 25, 27, 30}) {
t.Errorf("mismatch: %v", c)
}
a = pgids{4, 5, 6, 10, 11, 12, 13, 27, 35, 36}
b = pgids{8, 9, 25, 30}
c = a.merge(b)
if !reflect.DeepEqual(c, pgids{4, 5, 6, 8, 9, 10, 11, 12, 13, 25, 27, 30, 35, 36}) {
t.Errorf("mismatch: %v", c)
}
}
func TestPgids_merge_quick(t *testing.T) {
if err := quick.Check(func(a, b pgids) bool {
// Sort incoming lists.
sort.Sort(a)
sort.Sort(b)
// Merge the two lists together.
got := a.merge(b)
// The expected value should be the two lists combined and sorted.
exp := append(a, b...)
sort.Sort(exp)
if !reflect.DeepEqual(exp, got) {
t.Errorf("\nexp=%+v\ngot=%+v\n", exp, got)
return false
}
return true
}, nil); err != nil {
t.Fatal(err)
}
}