test case for "-F" (follow by name)
-F mode reopens deleted/ renamed files.
This commit is contained in:
parent
aa3b7c3413
commit
d214cebdfd
|
@ -0,0 +1 @@
|
||||||
|
.test
|
49
tail_test.go
49
tail_test.go
|
@ -15,8 +15,7 @@ func init() {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
// Test Config.MustExist
|
func TestMustExist(t *testing.T) {
|
||||||
func TestMissingFile(t *testing.T) {
|
|
||||||
tail, err := TailFile("/no/such/file", Config{Follow: true, MustExist: true})
|
tail, err := TailFile("/no/such/file", Config{Follow: true, MustExist: true})
|
||||||
if err == nil {
|
if err == nil {
|
||||||
t.Error("MustExist:true is violated")
|
t.Error("MustExist:true is violated")
|
||||||
|
@ -42,7 +41,7 @@ func TestLocationFull(t *testing.T) {
|
||||||
|
|
||||||
// Delete after a reasonable delay, to give tail sufficient time
|
// Delete after a reasonable delay, to give tail sufficient time
|
||||||
// to read all lines.
|
// to read all lines.
|
||||||
<-time.After(250 * time.Millisecond)
|
<-time.After(100 * time.Millisecond)
|
||||||
fix.RemoveFile("test.txt")
|
fix.RemoveFile("test.txt")
|
||||||
tail.Stop()
|
tail.Stop()
|
||||||
}
|
}
|
||||||
|
@ -58,11 +57,40 @@ func TestLocationEnd(t *testing.T) {
|
||||||
|
|
||||||
// Delete after a reasonable delay, to give tail sufficient time
|
// Delete after a reasonable delay, to give tail sufficient time
|
||||||
// to read all lines.
|
// to read all lines.
|
||||||
<-time.After(250 * time.Millisecond)
|
<-time.After(100 * time.Millisecond)
|
||||||
fix.RemoveFile("test.txt")
|
fix.RemoveFile("test.txt")
|
||||||
tail.Stop()
|
tail.Stop()
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func TestReOpen(t *testing.T) {
|
||||||
|
fix := NewFixture("reopen", t)
|
||||||
|
fix.CreateFile("test.txt", "hello\nworld\n")
|
||||||
|
tail := fix.StartTail("test.txt", Config{Follow: true, ReOpen: true, Location: -1})
|
||||||
|
go fix.VerifyTail(tail, []string{"hello", "world", "more", "data", "endofworld"})
|
||||||
|
|
||||||
|
// deletion must trigger reopen
|
||||||
|
<-time.After(100 * time.Millisecond)
|
||||||
|
fix.RemoveFile("test.txt")
|
||||||
|
<-time.After(100 * time.Millisecond)
|
||||||
|
fix.CreateFile("test.txt", "more\ndata\n")
|
||||||
|
|
||||||
|
// rename must trigger reopen
|
||||||
|
<-time.After(100 * time.Millisecond)
|
||||||
|
fix.RenameFile("test.txt", "test.txt.rotated")
|
||||||
|
<-time.After(100 * time.Millisecond)
|
||||||
|
fix.CreateFile("test.txt", "endofworld")
|
||||||
|
|
||||||
|
// Delete after a reasonable delay, to give tail sufficient time
|
||||||
|
// to read all lines.
|
||||||
|
<-time.After(100 * time.Millisecond)
|
||||||
|
fix.RemoveFile("test.txt") // TODO
|
||||||
|
|
||||||
|
tail.Stop()
|
||||||
|
}
|
||||||
|
|
||||||
|
|
||||||
|
// Test library
|
||||||
|
|
||||||
type Fixture struct {
|
type Fixture struct {
|
||||||
Name string
|
Name string
|
||||||
path string
|
path string
|
||||||
|
@ -92,6 +120,15 @@ func (fix Fixture) RemoveFile(name string) {
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
func (fix Fixture) RenameFile(oldname string, newname string) {
|
||||||
|
oldname = fix.path + "/" + oldname
|
||||||
|
newname = fix.path + "/" + newname
|
||||||
|
err := os.Rename(oldname, newname)
|
||||||
|
if err != nil {
|
||||||
|
fix.t.Fatal(err)
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
func (fix Fixture) AppendFile(name string, contents string) {
|
func (fix Fixture) AppendFile(name string, contents string) {
|
||||||
f, err := os.OpenFile(fix.path+"/"+name, os.O_APPEND|os.O_WRONLY, 0600)
|
f, err := os.OpenFile(fix.path+"/"+name, os.O_APPEND|os.O_WRONLY, 0600)
|
||||||
if err != nil {
|
if err != nil {
|
||||||
|
@ -113,10 +150,10 @@ func (fix Fixture) StartTail(name string, config Config) *Tail {
|
||||||
}
|
}
|
||||||
|
|
||||||
func (fix Fixture) VerifyTail(tail *Tail, lines []string) {
|
func (fix Fixture) VerifyTail(tail *Tail, lines []string) {
|
||||||
for _, line := range lines {
|
for idx, line := range lines {
|
||||||
tailedLine, ok := <-tail.Lines
|
tailedLine, ok := <-tail.Lines
|
||||||
if !ok {
|
if !ok {
|
||||||
fix.t.Fatal("insufficient lines from tail")
|
fix.t.Fatalf("insufficient lines from tail; expecting %v", lines[idx+1:])
|
||||||
}
|
}
|
||||||
if tailedLine == nil {
|
if tailedLine == nil {
|
||||||
fix.t.Fatalf("tail.Lines returned nil; not possible")
|
fix.t.Fatalf("tail.Lines returned nil; not possible")
|
||||||
|
|
Loading…
Reference in New Issue