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moby--moby/pkg/system/chtimes_test.go

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package system
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
"time"
)
// prepareTempFile creates a temporary file in a temporary directory.
func prepareTempFile(t *testing.T) (string, string) {
dir, err := ioutil.TempDir("", "docker-system-test")
if err != nil {
t.Fatal(err)
}
file := filepath.Join(dir, "exist")
if err := ioutil.WriteFile(file, []byte("hello"), 0644); err != nil {
t.Fatal(err)
}
return file, dir
}
// TestChtimes tests Chtimes on a tempfile. Test only mTime, because aTime is OS dependent
func TestChtimes(t *testing.T) {
file, dir := prepareTempFile(t)
defer os.RemoveAll(dir)
beforeUnixEpochTime := time.Unix(0, 0).Add(-100 * time.Second)
unixEpochTime := time.Unix(0, 0)
afterUnixEpochTime := time.Unix(100, 0)
unixMaxTime := maxTime
// Test both aTime and mTime set to Unix Epoch
Chtimes(file, unixEpochTime, unixEpochTime)
f, err := os.Stat(file)
if err != nil {
t.Fatal(err)
}
if f.ModTime() != unixEpochTime {
t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime())
}
// Test aTime before Unix Epoch and mTime set to Unix Epoch
Chtimes(file, beforeUnixEpochTime, unixEpochTime)
f, err = os.Stat(file)
if err != nil {
t.Fatal(err)
}
if f.ModTime() != unixEpochTime {
t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime())
}
// Test aTime set to Unix Epoch and mTime before Unix Epoch
Chtimes(file, unixEpochTime, beforeUnixEpochTime)
f, err = os.Stat(file)
if err != nil {
t.Fatal(err)
}
if f.ModTime() != unixEpochTime {
t.Fatalf("Expected: %s, got: %s", unixEpochTime, f.ModTime())
}
// Test both aTime and mTime set to after Unix Epoch (valid time)
Chtimes(file, afterUnixEpochTime, afterUnixEpochTime)
f, err = os.Stat(file)
if err != nil {
t.Fatal(err)
}
if f.ModTime() != afterUnixEpochTime {
t.Fatalf("Expected: %s, got: %s", afterUnixEpochTime, f.ModTime())
}
// Test both aTime and mTime set to Unix max time
Chtimes(file, unixMaxTime, unixMaxTime)
f, err = os.Stat(file)
if err != nil {
t.Fatal(err)
}
if f.ModTime().Truncate(time.Second) != unixMaxTime.Truncate(time.Second) {
t.Fatalf("Expected: %s, got: %s", unixMaxTime.Truncate(time.Second), f.ModTime().Truncate(time.Second))
}
}