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// Copyright 2016 the Go-FUSE Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package splice
import (
"io/ioutil"
"testing"
)
func TestPairSize(t *testing.T) {
p, _ := Get()
defer Done(p)
p.MaxGrow()
b := make([]byte, p.Cap()+100)
for i := range b {
b[i] = byte(i)
}
f, _ := ioutil.TempFile("", "splice")
err := ioutil.WriteFile(f.Name(), b, 0644)
if err != nil {
t.Fatalf("WriteFile: %v", err)
}
_, err = p.LoadFrom(f.Fd(), len(b))
if err == nil {
t.Fatalf("should give error on exceeding capacity")
}
}
func TestDiscard(t *testing.T) {
p, _ := Get()
defer Done(p)
if _, err := p.Write([]byte("hello")); err != nil {
t.Fatalf("Write: %v", err)
}
p.discard()
var b [1]byte
n, err := p.Read(b[:])
if n != -1 {
t.Fatalf("Read: got (%d, %v) want (-1, EAGAIN)", n, err)
}
}
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