jochen
8280a82ef8
A user that does not exist yet was matched as Go's 'exit status 2', while the host's runner says 'getent exited 2', so it read as a user database that did not answer: the controller's account was never created and the handover to its process stopped there. The runner keeps the exit underneath its words, and a caller asks the code.
41 lines
1.5 KiB
Go
41 lines
1.5 KiB
Go
package system
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"os/exec"
|
|
"testing"
|
|
)
|
|
|
|
// A user that does not exist yet is "absent", in the words the host's own runner uses
|
|
// ("getent exited 2"), not only Go's ("exit status 2"). Matched as text, the runner's wording read as
|
|
// a user database that did not answer, and the controller's account was never created.
|
|
func TestAMissingUserIsAbsentInTheRunnersWords(t *testing.T) {
|
|
for _, words := range []string{"getent exited 2: ", "exit status 2"} {
|
|
run := func(context.Context, string, ...string) (string, error) { return "", errors.New(words) }
|
|
_, found, err := LookUpUser(context.Background(), run, "nobody-here")
|
|
if err != nil || found {
|
|
t.Errorf("%q: found %v, err %v; want absent", words, found, err)
|
|
}
|
|
}
|
|
run := func(context.Context, string, ...string) (string, error) { return "", errors.New("getent exited 1: ") }
|
|
if _, _, err := LookUpUser(context.Background(), run, "x"); err == nil {
|
|
t.Error("a database that failed read as an answer")
|
|
}
|
|
}
|
|
|
|
// The real command, through a real exit: getent's code for a key not found.
|
|
func TestAMissingUserIsAbsentFromTheRealGetent(t *testing.T) {
|
|
if _, err := exec.LookPath("getent"); err != nil {
|
|
t.Skip("no getent here")
|
|
}
|
|
run := func(ctx context.Context, name string, args ...string) (string, error) {
|
|
out, err := exec.CommandContext(ctx, name, args...).Output()
|
|
return string(out), err
|
|
}
|
|
_, found, err := LookUpUser(context.Background(), run, "mesh-no-such-user-0b1f")
|
|
if err != nil || found {
|
|
t.Errorf("found %v, err %v; want absent", found, err)
|
|
}
|
|
}
|