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76 lines
1.5 KiB
76 lines
1.5 KiB
package wdclient
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import (
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"fmt"
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"testing"
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)
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func TestLocationIndex(t *testing.T) {
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vm := vidMap{}
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// test must be failed
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mustFailed := func(length int) {
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_, err := vm.getLocationIndex(length)
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if err == nil {
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t.Errorf("length %d must be failed", length)
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}
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if err.Error() != fmt.Sprintf("invalid length: %d", length) {
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t.Errorf("length %d must be failed. error: %v", length, err)
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}
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}
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mustFailed(-1)
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mustFailed(0)
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mustOk := func(length, cursor, expect int) {
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if length <= 0 {
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t.Fatal("please don't do this")
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}
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vm.cursor = int32(cursor)
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got, err := vm.getLocationIndex(length)
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if err != nil {
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t.Errorf("length: %d, why? %v\n", length, err)
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return
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}
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if got != expect {
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t.Errorf("cursor: %d, length: %d, expect: %d, got: %d\n", cursor, length, expect, got)
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return
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}
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}
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for i := -1; i < 100; i++ {
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mustOk(7, i, (i+1)%7)
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}
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// when cursor reaches MaxInt64
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mustOk(7, maxCursorIndex, 0)
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// test with constructor
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vm = newVidMap("")
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length := 7
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for i := 0; i < 100; i++ {
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got, err := vm.getLocationIndex(length)
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if err != nil {
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t.Errorf("length: %d, why? %v\n", length, err)
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return
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}
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if got != i%length {
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t.Errorf("length: %d, i: %d, got: %d\n", length, i, got)
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}
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}
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}
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func BenchmarkLocationIndex(b *testing.B) {
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b.SetParallelism(8)
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vm := vidMap{
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cursor: maxCursorIndex - 4000,
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}
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b.ResetTimer()
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b.RunParallel(func(pb *testing.PB) {
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for pb.Next() {
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_, err := vm.getLocationIndex(3)
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if err != nil {
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b.Error(err)
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}
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}
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})
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}
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