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[bugfix] flaky paging test (#2888)

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kim 2024-05-01 12:29:42 +01:00 committed by GitHub
parent a8254a40e7
commit eb61c783ed
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1 changed files with 32 additions and 41 deletions
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73
internal/paging/page_test.go
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@ -20,16 +20,14 @@ package paging_test
import (
"math/rand"
"slices"
"strconv"
"testing"
"time"
"github.com/oklog/ulid"
"github.com/stretchr/testify/assert"
"github.com/superseriousbusiness/gotosocial/internal/paging"
)
// random reader according to current-time source seed.
var randRd = rand.New(rand.NewSource(time.Now().Unix()))
type Case struct {
// Name is the test case name.
Name string
@ -63,13 +61,9 @@ func TestPage(t *testing.T) {
// Page the input slice.
out := c.Page.Page(c.Input)
// Log the results for case of error returns.
t.Logf("%s\npage=%+v input=%v expect=%v output=%v", c.Name, c.Page, c.Input, c.Expect, out)
// Check paged output is as expected.
if !slices.Equal(out, c.Expect) {
t.Error("unexpected paged output")
}
// Check paged output is expected.
assert.Equal(t, c.Expect, out,
"input=%#v page=%v", c.Input, c.Page)
})
}
}
@ -80,8 +74,7 @@ var cases = []Case{
slices.SortFunc(ids, ascending)
// Select random indices in slice.
minIdx := randRd.Intn(len(ids))
maxIdx := randRd.Intn(len(ids))
minIdx, maxIdx, _ := generateParams(len(ids))
// Select the boundaries.
minID := ids[minIdx]
@ -104,9 +97,7 @@ var cases = []Case{
slices.SortFunc(ids, ascending)
// Select random parameters in slice.
minIdx := randRd.Intn(len(ids))
maxIdx := randRd.Intn(len(ids))
limit := randRd.Intn(len(ids)) + 1
minIdx, maxIdx, limit := generateParams(len(ids))
// Select the boundaries.
minID := ids[minIdx]
@ -116,12 +107,10 @@ var cases = []Case{
expect := slices.Clone(ids)
expect = cutLower(expect, minID)
expect = cutUpper(expect, maxID)
slices.Reverse(expect)
// Now limit the slice.
if limit < len(expect) {
expect = expect[:limit]
}
slices.Reverse(expect)
// Return page and expected IDs.
return ids, &paging.Page{
@ -135,8 +124,7 @@ var cases = []Case{
slices.SortFunc(ids, ascending)
// Select random parameters in slice.
minIdx := randRd.Intn(len(ids))
maxIdx := randRd.Intn(len(ids))
minIdx, maxIdx, _ := generateParams(len(ids))
// Select the boundaries.
minID := ids[minIdx]
@ -160,8 +148,7 @@ var cases = []Case{
slices.SortFunc(ids, descending)
// Select random indices in slice.
sinceIdx := randRd.Intn(len(ids))
maxIdx := randRd.Intn(len(ids))
sinceIdx, maxIdx, _ := generateParams(len(ids))
// Select the boundaries.
sinceID := ids[sinceIdx]
@ -183,7 +170,7 @@ var cases = []Case{
slices.SortFunc(ids, descending)
// Select random indices in slice.
maxIdx := randRd.Intn(len(ids))
_, maxIdx, _ := generateParams(len(ids))
// Select the boundaries.
maxID := ids[maxIdx]
@ -202,7 +189,7 @@ var cases = []Case{
slices.SortFunc(ids, descending)
// Select random indices in slice.
sinceIdx := randRd.Intn(len(ids))
sinceIdx, _, _ := generateParams(len(ids))
// Select the boundaries.
sinceID := ids[sinceIdx]
@ -221,7 +208,7 @@ var cases = []Case{
slices.SortFunc(ids, ascending)
// Select random indices in slice.
minIdx := randRd.Intn(len(ids))
minIdx, _, _ := generateParams(len(ids))
// Select the boundaries.
minID := ids[minIdx]
@ -258,32 +245,34 @@ func cutUpper(in []string, bound string) []string {
return in
}
// random reader according to current-time source seed.
var randRd = rand.New(rand.NewSource(time.Now().Unix()))
// generateParams ...
func generateParams(n int) (minIdx int, maxIdx int, limit int) {
maxIdx = max(1, randRd.Intn(n))
minIdx = randRd.Intn(maxIdx)
limit = randRd.Intn(max(1, maxIdx-minIdx)) + 1
return
}
// generateSlice generates a new slice of len containing ascending sorted slice.
func generateSlice(len int) []string {
if len <= 0 {
if len <= 1 {
// minimum testable
// pageable amount
len = 2
}
now := time.Now()
in := make([]string, len)
for i := 0; i < len; i++ {
// Convert now to timestamp.
t := ulid.Timestamp(now)
// Create anew ulid for now.
u := ulid.MustNew(t, randRd)
// Add to slice.
in[i] = u.String()
// Bump now by 1 second.
now = now.Add(time.Second)
in[i] = strconv.Itoa(i)
}
return in
}
func ascending(a, b string) int {
func ascending(sa, sb string) int {
a, _ := strconv.Atoi(sa)
b, _ := strconv.Atoi(sb)
if a > b {
return 1
} else if a < b {
@ -292,7 +281,9 @@ func ascending(a, b string) int {
return 0
}
func descending(a, b string) int {
func descending(sa, sb string) int {
a, _ := strconv.Atoi(sa)
b, _ := strconv.Atoi(sb)
if a < b {
return 1
} else if a > b {