syncthing/lib/osutil/replacingwriter_test.go
2017-02-09 08:04:16 +01:00

45 lines
1.1 KiB
Go

// Copyright (C) 2014 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package osutil
import (
"bytes"
"fmt"
"testing"
)
var testcases = []struct {
from byte
to []byte
a, b string
}{
{'\n', []byte{'\r', '\n'}, "", ""},
{'\n', []byte{'\r', '\n'}, "foo", "foo"},
{'\n', []byte{'\r', '\n'}, "foo\n", "foo\r\n"},
{'\n', []byte{'\r', '\n'}, "foo\nbar", "foo\r\nbar"},
{'\n', []byte{'\r', '\n'}, "foo\nbar\nbaz", "foo\r\nbar\r\nbaz"},
{'\n', []byte{'\r', '\n'}, "\nbar", "\r\nbar"},
{'o', []byte{'x', 'l', 'r'}, "\nfoo", "\nfxlrxlr"},
{'o', nil, "\nfoo", "\nf"},
{'f', []byte{}, "\nfoo", "\noo"},
}
func TestReplacingWriter(t *testing.T) {
for _, tc := range testcases {
var buf bytes.Buffer
w := ReplacingWriter{
Writer: &buf,
From: tc.from,
To: tc.to,
}
fmt.Fprint(w, tc.a)
if buf.String() != tc.b {
t.Errorf("%q != %q", buf.String(), tc.b)
}
}
}