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author | Valentin Rothberg <rothberg@redhat.com> | 2019-06-24 11:29:13 +0200 |
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committer | Valentin Rothberg <rothberg@redhat.com> | 2019-06-24 13:20:59 +0200 |
commit | d697456dc90adbaf68224ed7c115b38d5855e582 (patch) | |
tree | 5fd88c48b34e7bead0028fa97e39f43f03880642 /vendor/gopkg.in/fsnotify.v1/inotify_test.go | |
parent | a3211b73c62a9fcc13f09305bf629ef507b26d34 (diff) | |
download | podman-d697456dc90adbaf68224ed7c115b38d5855e582.tar.gz podman-d697456dc90adbaf68224ed7c115b38d5855e582.tar.bz2 podman-d697456dc90adbaf68224ed7c115b38d5855e582.zip |
migrate to go-modules
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'vendor/gopkg.in/fsnotify.v1/inotify_test.go')
-rw-r--r-- | vendor/gopkg.in/fsnotify.v1/inotify_test.go | 449 |
1 files changed, 0 insertions, 449 deletions
diff --git a/vendor/gopkg.in/fsnotify.v1/inotify_test.go b/vendor/gopkg.in/fsnotify.v1/inotify_test.go deleted file mode 100644 index 54f3f00eb..000000000 --- a/vendor/gopkg.in/fsnotify.v1/inotify_test.go +++ /dev/null @@ -1,449 +0,0 @@ -// Copyright 2015 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -// +build linux - -package fsnotify - -import ( - "fmt" - "os" - "path/filepath" - "strings" - "testing" - "time" -) - -func TestInotifyCloseRightAway(t *testing.T) { - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher") - } - - // Close immediately; it won't even reach the first unix.Read. - w.Close() - - // Wait for the close to complete. - <-time.After(50 * time.Millisecond) - isWatcherReallyClosed(t, w) -} - -func TestInotifyCloseSlightlyLater(t *testing.T) { - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher") - } - - // Wait until readEvents has reached unix.Read, and Close. - <-time.After(50 * time.Millisecond) - w.Close() - - // Wait for the close to complete. - <-time.After(50 * time.Millisecond) - isWatcherReallyClosed(t, w) -} - -func TestInotifyCloseSlightlyLaterWithWatch(t *testing.T) { - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher") - } - w.Add(testDir) - - // Wait until readEvents has reached unix.Read, and Close. - <-time.After(50 * time.Millisecond) - w.Close() - - // Wait for the close to complete. - <-time.After(50 * time.Millisecond) - isWatcherReallyClosed(t, w) -} - -func TestInotifyCloseAfterRead(t *testing.T) { - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher") - } - - err = w.Add(testDir) - if err != nil { - t.Fatalf("Failed to add .") - } - - // Generate an event. - os.Create(filepath.Join(testDir, "somethingSOMETHINGsomethingSOMETHING")) - - // Wait for readEvents to read the event, then close the watcher. - <-time.After(50 * time.Millisecond) - w.Close() - - // Wait for the close to complete. - <-time.After(50 * time.Millisecond) - isWatcherReallyClosed(t, w) -} - -func isWatcherReallyClosed(t *testing.T, w *Watcher) { - select { - case err, ok := <-w.Errors: - if ok { - t.Fatalf("w.Errors is not closed; readEvents is still alive after closing (error: %v)", err) - } - default: - t.Fatalf("w.Errors would have blocked; readEvents is still alive!") - } - - select { - case _, ok := <-w.Events: - if ok { - t.Fatalf("w.Events is not closed; readEvents is still alive after closing") - } - default: - t.Fatalf("w.Events would have blocked; readEvents is still alive!") - } -} - -func TestInotifyCloseCreate(t *testing.T) { - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher: %v", err) - } - defer w.Close() - - err = w.Add(testDir) - if err != nil { - t.Fatalf("Failed to add testDir: %v", err) - } - h, err := os.Create(filepath.Join(testDir, "testfile")) - if err != nil { - t.Fatalf("Failed to create file in testdir: %v", err) - } - h.Close() - select { - case _ = <-w.Events: - case err := <-w.Errors: - t.Fatalf("Error from watcher: %v", err) - case <-time.After(50 * time.Millisecond): - t.Fatalf("Took too long to wait for event") - } - - // At this point, we've received one event, so the goroutine is ready. - // It's also blocking on unix.Read. - // Now we try to swap the file descriptor under its nose. - w.Close() - w, err = NewWatcher() - defer w.Close() - if err != nil { - t.Fatalf("Failed to create second watcher: %v", err) - } - - <-time.After(50 * time.Millisecond) - err = w.Add(testDir) - if err != nil { - t.Fatalf("Error adding testDir again: %v", err) - } -} - -// This test verifies the watcher can keep up with file creations/deletions -// when under load. -func TestInotifyStress(t *testing.T) { - maxNumToCreate := 1000 - - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - testFilePrefix := filepath.Join(testDir, "testfile") - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher: %v", err) - } - defer w.Close() - - err = w.Add(testDir) - if err != nil { - t.Fatalf("Failed to add testDir: %v", err) - } - - doneChan := make(chan struct{}) - // The buffer ensures that the file generation goroutine is never blocked. - errChan := make(chan error, 2*maxNumToCreate) - - go func() { - for i := 0; i < maxNumToCreate; i++ { - testFile := fmt.Sprintf("%s%d", testFilePrefix, i) - - handle, err := os.Create(testFile) - if err != nil { - errChan <- fmt.Errorf("Create failed: %v", err) - continue - } - - err = handle.Close() - if err != nil { - errChan <- fmt.Errorf("Close failed: %v", err) - continue - } - } - - // If we delete a newly created file too quickly, inotify will skip the - // create event and only send the delete event. - time.Sleep(100 * time.Millisecond) - - for i := 0; i < maxNumToCreate; i++ { - testFile := fmt.Sprintf("%s%d", testFilePrefix, i) - err = os.Remove(testFile) - if err != nil { - errChan <- fmt.Errorf("Remove failed: %v", err) - } - } - - close(doneChan) - }() - - creates := 0 - removes := 0 - - finished := false - after := time.After(10 * time.Second) - for !finished { - select { - case <-after: - t.Fatalf("Not done") - case <-doneChan: - finished = true - case err := <-errChan: - t.Fatalf("Got an error from file creator goroutine: %v", err) - case err := <-w.Errors: - t.Fatalf("Got an error from watcher: %v", err) - case evt := <-w.Events: - if !strings.HasPrefix(evt.Name, testFilePrefix) { - t.Fatalf("Got an event for an unknown file: %s", evt.Name) - } - if evt.Op == Create { - creates++ - } - if evt.Op == Remove { - removes++ - } - } - } - - // Drain remaining events from channels - count := 0 - for count < 10 { - select { - case err := <-errChan: - t.Fatalf("Got an error from file creator goroutine: %v", err) - case err := <-w.Errors: - t.Fatalf("Got an error from watcher: %v", err) - case evt := <-w.Events: - if !strings.HasPrefix(evt.Name, testFilePrefix) { - t.Fatalf("Got an event for an unknown file: %s", evt.Name) - } - if evt.Op == Create { - creates++ - } - if evt.Op == Remove { - removes++ - } - count = 0 - default: - count++ - // Give the watcher chances to fill the channels. - time.Sleep(time.Millisecond) - } - } - - if creates-removes > 1 || creates-removes < -1 { - t.Fatalf("Creates and removes should not be off by more than one: %d creates, %d removes", creates, removes) - } - if creates < 50 { - t.Fatalf("Expected at least 50 creates, got %d", creates) - } -} - -func TestInotifyRemoveTwice(t *testing.T) { - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - testFile := filepath.Join(testDir, "testfile") - - handle, err := os.Create(testFile) - if err != nil { - t.Fatalf("Create failed: %v", err) - } - handle.Close() - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher: %v", err) - } - defer w.Close() - - err = w.Add(testFile) - if err != nil { - t.Fatalf("Failed to add testFile: %v", err) - } - - err = w.Remove(testFile) - if err != nil { - t.Fatalf("wanted successful remove but got: %v", err) - } - - err = w.Remove(testFile) - if err == nil { - t.Fatalf("no error on removing invalid file") - } - - w.mu.Lock() - defer w.mu.Unlock() - if len(w.watches) != 0 { - t.Fatalf("Expected watches len is 0, but got: %d, %v", len(w.watches), w.watches) - } - if len(w.paths) != 0 { - t.Fatalf("Expected paths len is 0, but got: %d, %v", len(w.paths), w.paths) - } -} - -func TestInotifyInnerMapLength(t *testing.T) { - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - testFile := filepath.Join(testDir, "testfile") - - handle, err := os.Create(testFile) - if err != nil { - t.Fatalf("Create failed: %v", err) - } - handle.Close() - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher: %v", err) - } - defer w.Close() - - err = w.Add(testFile) - if err != nil { - t.Fatalf("Failed to add testFile: %v", err) - } - go func() { - for err := range w.Errors { - t.Fatalf("error received: %s", err) - } - }() - - err = os.Remove(testFile) - if err != nil { - t.Fatalf("Failed to remove testFile: %v", err) - } - _ = <-w.Events // consume Remove event - <-time.After(50 * time.Millisecond) // wait IN_IGNORE propagated - - w.mu.Lock() - defer w.mu.Unlock() - if len(w.watches) != 0 { - t.Fatalf("Expected watches len is 0, but got: %d, %v", len(w.watches), w.watches) - } - if len(w.paths) != 0 { - t.Fatalf("Expected paths len is 0, but got: %d, %v", len(w.paths), w.paths) - } -} - -func TestInotifyOverflow(t *testing.T) { - // We need to generate many more events than the - // fs.inotify.max_queued_events sysctl setting. - // We use multiple goroutines (one per directory) - // to speed up file creation. - numDirs := 128 - numFiles := 1024 - - testDir := tempMkdir(t) - defer os.RemoveAll(testDir) - - w, err := NewWatcher() - if err != nil { - t.Fatalf("Failed to create watcher: %v", err) - } - defer w.Close() - - for dn := 0; dn < numDirs; dn++ { - testSubdir := fmt.Sprintf("%s/%d", testDir, dn) - - err := os.Mkdir(testSubdir, 0777) - if err != nil { - t.Fatalf("Cannot create subdir: %v", err) - } - - err = w.Add(testSubdir) - if err != nil { - t.Fatalf("Failed to add subdir: %v", err) - } - } - - errChan := make(chan error, numDirs*numFiles) - - for dn := 0; dn < numDirs; dn++ { - testSubdir := fmt.Sprintf("%s/%d", testDir, dn) - - go func() { - for fn := 0; fn < numFiles; fn++ { - testFile := fmt.Sprintf("%s/%d", testSubdir, fn) - - handle, err := os.Create(testFile) - if err != nil { - errChan <- fmt.Errorf("Create failed: %v", err) - continue - } - - err = handle.Close() - if err != nil { - errChan <- fmt.Errorf("Close failed: %v", err) - continue - } - } - }() - } - - creates := 0 - overflows := 0 - - after := time.After(10 * time.Second) - for overflows == 0 && creates < numDirs*numFiles { - select { - case <-after: - t.Fatalf("Not done") - case err := <-errChan: - t.Fatalf("Got an error from file creator goroutine: %v", err) - case err := <-w.Errors: - if err == ErrEventOverflow { - overflows++ - } else { - t.Fatalf("Got an error from watcher: %v", err) - } - case evt := <-w.Events: - if !strings.HasPrefix(evt.Name, testDir) { - t.Fatalf("Got an event for an unknown file: %s", evt.Name) - } - if evt.Op == Create { - creates++ - } - } - } - - if creates == numDirs*numFiles { - t.Fatalf("Could not trigger overflow") - } - - if overflows == 0 { - t.Fatalf("No overflow and not enough creates (expected %d, got %d)", - numDirs*numFiles, creates) - } -} |