v2ray-core/common/io/buffered_reader_test.go

44 lines
901 B
Go

package io_test
import (
"testing"
"github.com/v2ray/v2ray-core/common/alloc"
. "github.com/v2ray/v2ray-core/common/io"
"github.com/v2ray/v2ray-core/testing/assert"
)
func TestBufferedReader(t *testing.T) {
assert := assert.On(t)
content := alloc.NewLargeBuffer()
len := content.Len()
reader := NewBufferedReader(content)
assert.Bool(reader.Cached()).IsTrue()
payload := make([]byte, 16)
nBytes, err := reader.Read(payload)
assert.Int(nBytes).Equals(16)
assert.Error(err).IsNil()
len2 := content.Len()
assert.Int(len - len2).GreaterThan(16)
nBytes, err = reader.Read(payload)
assert.Int(nBytes).Equals(16)
assert.Error(err).IsNil()
assert.Int(content.Len()).Equals(len2)
reader.SetCached(false)
payload2 := alloc.NewBuffer()
reader.Read(payload2.Value)
assert.Int(content.Len()).Equals(len2)
reader.Read(payload2.Value)
assert.Int(content.Len()).LessThan(len2)
}