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// Copyright 2016 Luke Shumaker
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package sd_daemon
import (
"log/syslog"
"testing"
)
type cbWriter func(p []byte) (n int, err error)
func (cb cbWriter) Write(p []byte) (n int, err error) {
return cb(p)
}
func TestLog(t *testing.T) {
var written []byte
log := NewLogger(cbWriter(func(p []byte) (n int, err error) {
written = p
return len(p), nil
}))
type testcase struct {
level syslog.Priority
msg string
}
testcases := map[testcase]string{
testcase{6, "foo"}: "<6>foo\n",
testcase{6, "foo\n"}: "<6>foo\n",
testcase{6, "foo\nbar"}: "<6>foo\n<6>bar\n",
testcase{6, "foo\nbar\n"}: "<6>foo\n<6>bar\n",
testcase{6, "foo\nbar\nbaz"}: "<6>foo\n<6>bar\n<6>baz\n",
testcase{6, "foo\nbar\nbaz\n"}: "<6>foo\n<6>bar\n<6>baz\n",
testcase{0, "foo"}: "<0>foo\n",
testcase{1, "foo"}: "<1>foo\n",
testcase{10, "foo"}: "<10>foo\n",
}
for in, out := range testcases {
written = nil
n, err := log.WriteString(in.level, in.msg)
if n != len(out) || string(written) != out || err != nil {
t.Errorf("WriteString(%#v, %#v)\n -> expected:{%#v, %#v, %#v}\n -> got:{%#v, %#v, %#v}\n",
in.level, in.msg,
len(out), nil, out,
n, err, string(written))
}
written = nil
n, err = log.WriteBytes(in.level, []byte(in.msg))
if n != len(out) || string(written) != out || err != nil {
t.Errorf("WriteBytes(%#v, %#v)\n -> expected:{%#v, %#v, %#v}\n -> got:{%#v, %#v, %#v}\n",
in.level, in.msg,
len(out), nil, out,
n, err, string(written))
}
}
}
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