func TestNSSErrors(t *testing.T) {
Convey("Given an NSS server", t, func() {
server := nss.New(sys.DefaultExecutor)
Convey("When queried with a wrong database", func() {
var (
db nss.Database = "InvalidDatabase"
key string = "some_entry"
)
Convey("It should return an error message containing: Unknown database", func() {
_, err := server.GetEntryFrom(db, key)
So(err, ShouldNotBeNil)
So(err.Error(), ShouldContainSubstring, "Unknown database")
})
})
Convey("When queried with a non-existent user", func() {
var (
db nss.Database = nss.UserDatabase
key string = rand.String(10)
)
Convey("It should return an error message containing: Key could not be found", func() {
_, err := server.GetEntryFrom(db, key)
So(err, ShouldNotBeNil)
So(err.Error(), ShouldContainSubstring, "Key could not be found")
})
})
})
}
func UniqueName(dir, prefix string) (string, error) {
for i, retries := 0, 100; i < retries; i++ {
suffix := rand.String(8)
fname := filepath.Join(dir, prefix+suffix)
if _, err := os.Lstat(fname); err != nil {
if os.IsNotExist(err) {
return fname, nil
} else {
return "", err
}
}
}
return "", fmt.Errorf("file name collision after every retry")
}