You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
91 lines
1.8 KiB
91 lines
1.8 KiB
package common
|
|
|
|
import (
|
|
"bytes"
|
|
"io/ioutil"
|
|
"math/rand"
|
|
"os"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func TestWriteFileAtomic(t *testing.T) {
|
|
var (
|
|
seed = rand.New(rand.NewSource(time.Now().UnixNano()))
|
|
data = []byte(RandStr(seed.Intn(2048)))
|
|
old = RandBytes(seed.Intn(2048))
|
|
perm os.FileMode = 0600
|
|
)
|
|
|
|
f, err := ioutil.TempFile("/tmp", "write-atomic-test-")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
defer os.Remove(f.Name())
|
|
|
|
if err = ioutil.WriteFile(f.Name(), old, 0664); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if err = WriteFileAtomic(f.Name(), data, perm); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
rData, err := ioutil.ReadFile(f.Name())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if !bytes.Equal(data, rData) {
|
|
t.Fatalf("data mismatch: %v != %v", data, rData)
|
|
}
|
|
|
|
stat, err := os.Stat(f.Name())
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if have, want := stat.Mode().Perm(), perm; have != want {
|
|
t.Errorf("have %v, want %v", have, want)
|
|
}
|
|
}
|
|
|
|
func TestGoPath(t *testing.T) {
|
|
// restore original gopath upon exit
|
|
path := os.Getenv("GOPATH")
|
|
defer func() {
|
|
_ = os.Setenv("GOPATH", path)
|
|
}()
|
|
|
|
err := os.Setenv("GOPATH", "~/testgopath")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
path = GoPath()
|
|
if path != "~/testgopath" {
|
|
t.Fatalf("should get GOPATH env var value, got %v", path)
|
|
}
|
|
os.Unsetenv("GOPATH")
|
|
|
|
path = GoPath()
|
|
if path != "~/testgopath" {
|
|
t.Fatalf("subsequent calls should return the same value, got %v", path)
|
|
}
|
|
}
|
|
|
|
func TestGoPathWithoutEnvVar(t *testing.T) {
|
|
// restore original gopath upon exit
|
|
path := os.Getenv("GOPATH")
|
|
defer func() {
|
|
_ = os.Setenv("GOPATH", path)
|
|
}()
|
|
|
|
os.Unsetenv("GOPATH")
|
|
// reset cache
|
|
gopath = ""
|
|
|
|
path = GoPath()
|
|
if path == "" || path == "~/testgopath" {
|
|
t.Fatalf("should get nonempty result of calling go env GOPATH, got %v", path)
|
|
}
|
|
}
|