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// Copyright 2018 Google Inc. All rights reserved.
//
// 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 paths
import (
"context"
"io/ioutil"
"os"
"path/filepath"
"reflect"
"runtime"
"strings"
"testing"
)
func TestSendLog(t *testing.T) {
t.Run("Short name", func(t *testing.T) {
d, err := ioutil.TempDir("", "s")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(d)
f := filepath.Join(d, "s")
testSendLog(t, f, getSocketAddr)
})
testLongName := func(t *testing.T, lookup socketAddrFunc) {
d, err := ioutil.TempDir("", strings.Repeat("s", 150))
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(d)
f := filepath.Join(d, strings.Repeat("s", 10))
testSendLog(t, f, lookup)
}
// Using a name longer than the ~100 limit of the underlying calls to bind, etc
t.Run("Long name", func(t *testing.T) {
testLongName(t, getSocketAddr)
})
if runtime.GOOS == "linux" {
t.Run("Long name proc fallback", func(t *testing.T) {
testLongName(t, procFallback)
})
}
t.Run("Long name tmp fallback", func(t *testing.T) {
testLongName(t, tmpFallback)
})
}
func testSendLog(t *testing.T, socket string, lookup socketAddrFunc) {
recv, err := logListener(context.Background(), socket, lookup)
if err != nil {
t.Fatal(err)
}
go func() {
for i := 0; i < 10; i++ {
sendLog(socket, lookup, 0, &LogEntry{
Basename: "test",
Args: []string{"foo", "bar"},
}, make(chan interface{}))
}
}()
count := 0
for {
entry := <-recv
if entry == nil {
if count != 10 {
t.Errorf("Expected 10 logs, got %d", count)
}
return
}
ref := LogEntry{
Basename: "test",
Args: []string{"foo", "bar"},
}
if !reflect.DeepEqual(ref, *entry) {
t.Fatalf("Bad log entry: %v", entry)
}
count++
if count == 10 {
return
}
}
}
func TestSendLogError(t *testing.T) {
d, err := ioutil.TempDir("", "log_socket")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(d)
// Missing log sockets should not block waiting for the timeout to elapse
t.Run("Missing file", func(t *testing.T) {
sendLog(filepath.Join(d, "missing"), getSocketAddr, 0, &LogEntry{}, make(chan interface{}))
})
// Non-sockets should not block waiting for the timeout to elapse
t.Run("Regular file", func(t *testing.T) {
f := filepath.Join(d, "file")
if fp, err := os.Create(f); err == nil {
fp.Close()
} else {
t.Fatal(err)
}
sendLog(f, getSocketAddr, 0, &LogEntry{}, make(chan interface{}))
})
// If the reader is stuck, we should be able to make progress
t.Run("Reader not reading", func(t *testing.T) {
f := filepath.Join(d, "sock1")
ln, err := listen(f, getSocketAddr)
if err != nil {
t.Fatal(err)
}
defer ln.Close()
done := make(chan bool, 1)
go func() {
for i := 0; i < 10; i++ {
sendLog(f, getSocketAddr, timeoutDuration, &LogEntry{
// Ensure a relatively large payload
Basename: strings.Repeat(" ", 100000),
}, make(chan interface{}))
}
done <- true
}()
<-done
})
}
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