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/* Copyright (C) 2021 Nicolas Peugnet <n.peugnet@free.fr>
This file is part of dna-backup.
dna-backup is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
dna-backup is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with dna-backup. If not, see <https://www.gnu.org/licenses/>. */
package utils_test
import (
"bytes"
"io"
"testing"
"github.com/n-peugnet/dna-backup/utils"
)
func TestNopCloser(t *testing.T) {
var buff bytes.Buffer
w := utils.NopCloser(&buff)
w.Close()
n, err := buff.WriteString("test")
if err != nil {
t.Error(err)
}
if n != 4 {
t.Error("expected: 4, actual:", n)
}
}
type wrapper struct {
n string
r utils.ReadWrapper
w utils.WriteWrapper
}
func TestWrappers(t *testing.T) {
wrappers := []wrapper{
{"Zlib", utils.ZlibReader, utils.ZlibWriter},
{"Nop", utils.NopReadWrapper, utils.NopWriteWrapper},
}
for _, wrapper := range wrappers {
t.Run(wrapper.n, func(t *testing.T) {
testWrapper(t, wrapper)
})
}
}
func testWrapper(t *testing.T, wrapper wrapper) {
var buff bytes.Buffer
var err error
w := wrapper.w(&buff)
n, err := w.Write([]byte("test"))
if err != nil {
t.Error(wrapper.n, err)
}
if n != 4 {
t.Error(wrapper.n, "expected: 4, actual:", n)
}
err = w.Close()
if err != nil {
t.Error(wrapper.n, err)
}
r, err := wrapper.r(&buff)
if err != nil {
t.Error(wrapper.n, err)
}
b := make([]byte, 4)
n, err = r.Read(b)
if n != 4 {
t.Error(wrapper.n, "expected: 4, actual:", n)
}
if err != nil && err != io.EOF {
t.Error(wrapper.n, err)
}
if !bytes.Equal(b, []byte("test")) {
t.Errorf("%s, expected: %q, actual: %q", "test", wrapper.n, b)
}
n, err = r.Read(b)
if err != io.EOF {
t.Error(wrapper.n, err)
}
}
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