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batch_test.go
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batch_test.go
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package rockscache
import (
"errors"
"math/rand"
"strconv"
"testing"
"time"
"github.com/stretchr/testify/assert"
)
func genBatchDataFunc(values map[int]string, sleepMilli int) func(idxs []int) (map[int]string, error) {
return func(idxs []int) (map[int]string, error) {
debugf("batch fetching: %v", idxs)
time.Sleep(time.Duration(sleepMilli) * time.Millisecond)
return values, nil
}
}
func genIdxs(to int) (idxs []int) {
for i := 0; i < to; i++ {
idxs = append(idxs, i)
}
return
}
func genKeys(idxs []int) (keys []string) {
for _, i := range idxs {
suffix := strconv.Itoa(i)
k := "key" + suffix
keys = append(keys, k)
}
return
}
func genValues(n int, prefix string) map[int]string {
values := make(map[int]string)
for i := 0; i < n; i++ {
v := prefix + strconv.Itoa(i)
values[i] = v
}
return values
}
func TestWeakFetchBatch(t *testing.T) {
clearCache()
rc := NewClient(rdb, NewDefaultOptions())
began := time.Now()
n := int(rand.Int31n(20) + 10)
idxs := genIdxs(n)
keys, values1, values2 := genKeys(idxs), genValues(n, "value_"), genValues(n, "eulav_")
values3 := genValues(n, "vvvv_")
go func() {
dc2 := NewClient(rdb, NewDefaultOptions())
v, err := dc2.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values1, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
}()
time.Sleep(20 * time.Millisecond)
v, err := rc.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
assert.True(t, time.Since(began) > time.Duration(150)*time.Millisecond)
err = rc.TagAsDeletedBatch(keys)
assert.Nil(t, err)
began = time.Now()
v, err = rc.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values3, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
assert.True(t, time.Since(began) < time.Duration(200)*time.Millisecond)
time.Sleep(300 * time.Millisecond)
v, err = rc.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values3, 200))
assert.Nil(t, err)
assert.Equal(t, values3, v)
}
func TestWeakFetchBatchOverlap(t *testing.T) {
clearCache()
rc := NewClient(rdb, NewDefaultOptions())
began := time.Now()
n := 100
idxs := genIdxs(n)
keys := genKeys(idxs)
keys1, values1 := keys[:60], genValues(60, "value_")
keys2, values2 := keys[40:], genValues(60, "eulav_")
go func() {
dc2 := NewClient(rdb, NewDefaultOptions())
v, err := dc2.FetchBatch(keys1, 60*time.Second, genBatchDataFunc(values1, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
}()
time.Sleep(20 * time.Millisecond)
v, err := rc.FetchBatch(keys2, 60*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.True(t, time.Since(began) > time.Duration(150)*time.Millisecond)
for i := 40; i < 60; i++ {
assert.Equal(t, keys2[i-40], keys1[i])
assert.Equal(t, values1[i], v[i-40])
}
for i := 60; i < n; i++ {
assert.Equal(t, values2[i-40], v[i-40])
}
rc.TagAsDeletedBatch(keys[40:60])
began = time.Now()
_, err = rc.FetchBatch(keys2, 60*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.True(t, time.Since(began) < time.Duration(200)*time.Millisecond)
for i := 40; i < 60; i++ {
assert.Equal(t, keys2[i-40], keys1[i])
assert.Equal(t, values1[i], v[i-40])
}
for i := 60; i < n; i++ {
assert.Equal(t, values2[i-40], v[i-40])
}
time.Sleep(300 * time.Millisecond)
v, err = rc.FetchBatch(keys2, 20*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.Equal(t, values2, v)
}
func TestStrongFetchBatch(t *testing.T) {
clearCache()
rc := NewClient(rdb, NewDefaultOptions())
rc.Options.StrongConsistency = true
began := time.Now()
n := int(rand.Int31n(20) + 10)
idxs := genIdxs(n)
keys, values1, values2 := genKeys(idxs), genValues(n, "value_"), genValues(n, "eulav_")
values3, values4 := genValues(n, "vvvv_"), genValues(n, "uuuu_")
go func() {
dc2 := NewClient(rdb, NewDefaultOptions())
v, err := dc2.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values1, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
}()
time.Sleep(20 * time.Millisecond)
v, err := rc.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
assert.True(t, time.Since(began) > time.Duration(150)*time.Millisecond)
err = rc.TagAsDeletedBatch(keys)
assert.Nil(t, err)
began = time.Now()
v, err = rc.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values3, 200))
assert.Nil(t, err)
assert.Equal(t, values3, v)
assert.True(t, time.Since(began) > time.Duration(150)*time.Millisecond)
v, err = rc.FetchBatch(keys, 60*time.Second, genBatchDataFunc(values4, 200))
assert.Nil(t, err)
assert.Equal(t, values3, v)
}
func TestStrongFetchBatchOverlap(t *testing.T) {
clearCache()
rc := NewClient(rdb, NewDefaultOptions())
rc.Options.StrongConsistency = true
began := time.Now()
n := 100
idxs := genIdxs(n)
keys := genKeys(idxs)
keys1, values1 := keys[:60], genValues(60, "value_")
keys2, values2 := keys[40:], genValues(60, "eulav_")
go func() {
dc2 := NewClient(rdb, NewDefaultOptions())
v, err := dc2.FetchBatch(keys1, 20*time.Second, genBatchDataFunc(values1, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
}()
time.Sleep(20 * time.Millisecond)
v, err := rc.FetchBatch(keys2, 20*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.True(t, time.Since(began) > time.Duration(150)*time.Millisecond)
for i := 40; i < 60; i++ {
assert.Equal(t, keys2[i-40], keys1[i])
assert.Equal(t, values1[i], v[i-40])
}
for i := 60; i < n; i++ {
assert.Equal(t, values2[i-40], v[i-40])
}
}
func TestStrongFetchBatchOverlapExpire(t *testing.T) {
clearCache()
opts := NewDefaultOptions()
opts.Delay = 10 * time.Millisecond
opts.StrongConsistency = true
rc := NewClient(rdb, opts)
began := time.Now()
n := 100
idxs := genIdxs(n)
keys := genKeys(idxs)
keys1, values1 := keys[:60], genValues(60, "value_")
keys2, values2 := keys[40:], genValues(60, "eulav_")
v, err := rc.FetchBatch(keys1, 2*time.Second, genBatchDataFunc(values1, 200))
assert.Nil(t, err)
assert.Equal(t, values1, v)
v, err = rc.FetchBatch(keys2, 2*time.Second, genBatchDataFunc(values2, 200))
assert.Nil(t, err)
assert.True(t, time.Since(began) > time.Duration(150)*time.Millisecond)
for i := 40; i < 60; i++ {
assert.Equal(t, keys2[i-40], keys1[i])
assert.Equal(t, values1[i], v[i-40])
}
for i := 60; i < n; i++ {
assert.Equal(t, values2[i-40], v[i-40])
}
time.Sleep(time.Second)
v, err = rc.FetchBatch(keys2, 2*time.Second, genBatchDataFunc(values2, 100))
assert.Nil(t, err)
assert.Nil(t, err)
assert.Equal(t, values2, v)
}
func TestStrongErrorFetchBatch(t *testing.T) {
rc := NewClient(rdb, NewDefaultOptions())
rc.Options.StrongConsistency = true
clearCache()
began := time.Now()
n := 100
idxs := genIdxs(n)
keys := genKeys(idxs)
fetchError := errors.New("fetch error")
getFn := func(idxs []int) (map[int]string, error) {
return nil, fetchError
}
_, err := rc.FetchBatch(keys, 60*time.Second, getFn)
assert.Error(t, err)
fetchError = nil
_, err = rc.FetchBatch(keys, 60*time.Second, getFn)
assert.Nil(t, err)
assert.True(t, time.Since(began) < time.Duration(150)*time.Millisecond)
}