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v2ray-core/common/retry/retry_test.go

82 lines
1.5 KiB

package retry_test
import (
"errors"
"testing"
"time"
. "v2ray.com/core/common/retry"
"v2ray.com/core/testing/assert"
)
var (
errorTestOnly = errors.New("This is a fake error.")
)
func TestNoRetry(t *testing.T) {
assert := assert.On(t)
startTime := time.Now().Unix()
err := Timed(10, 100000).On(func() error {
return nil
})
endTime := time.Now().Unix()
assert.Error(err).IsNil()
assert.Int64(endTime - startTime).AtLeast(0)
}
func TestRetryOnce(t *testing.T) {
assert := assert.On(t)
startTime := time.Now()
called := 0
err := Timed(10, 1000).On(func() error {
if called == 0 {
called++
return errorTestOnly
}
return nil
})
duration := time.Since(startTime)
assert.Error(err).IsNil()
assert.Int64(int64(duration / time.Millisecond)).AtLeast(900)
}
func TestRetryMultiple(t *testing.T) {
assert := assert.On(t)
startTime := time.Now()
called := 0
err := Timed(10, 1000).On(func() error {
if called < 5 {
called++
return errorTestOnly
}
return nil
})
duration := time.Since(startTime)
assert.Error(err).IsNil()
assert.Int64(int64(duration / time.Millisecond)).AtLeast(4900)
}
func TestRetryExhausted(t *testing.T) {
assert := assert.On(t)
startTime := time.Now()
called := 0
err := Timed(2, 1000).On(func() error {
if called < 5 {
called++
return errorTestOnly
}
return nil
})
duration := time.Since(startTime)
assert.Error(err).Equals(ErrRetryFailed)
assert.Int64(int64(duration / time.Millisecond)).AtLeast(1900)
}