}
	}(Environ())

	if err := Setenv(testKey, testValue); err != nil {
		t.Fatalf("Setenv(%q, %q) failed: %v", testKey, testValue, err)
	}
	if _, ok := LookupEnv(testKey); !ok {
		t.Errorf("Setenv(%q, %q) didn't set $%s", testKey, testValue, testKey)
	}
	Clearenv()
	if val, ok := LookupEnv(testKey); ok {
		t.Errorf("Clearenv() didn't clear $%s, remained with value %q", testKey, val)
	}
}

	if err != nil {
		c.Fatalf("could not read test key file: %s", err)
	}

	testKey, _, _, _, err := ssh.ParseAuthorizedKey(keyBytes)
	if err != nil {
		c.Fatalf("could not parse test key file: %s", err)
	}

	newSSHCon := newSSHConnMock("dillon=ldap")
	_, err = sshPubKeyAuth(newSSHCon, testKey)
	if err == nil || !errors.Is(err, errAuthentication) {

# should invalidate cached test results.
env TESTKEY=x
go test testcache -run=TestLookupEnv
go test testcache -run=TestLookupEnv
stdout '\(cached\)'

# GODEBUG is always read
env GODEBUG=asdf=1
go test testcache -run=TestLookupEnv
! stdout '\(cached\)'
go test testcache -run=TestLookupEnv
stdout '\(cached\)'
env GODEBUG=

env TESTKEY=y
go test testcache -run=TestLookupEnv
! stdout '\(cached\)'

			if !ok || v != v1 {
				t.Errorf("at iteration %d got %d, %d want %d, %d", cnt, i, v, i, v1)
			}
			cnt++
		}
		if cnt != size {
			t.Errorf("read %d values expected %d", cnt, size)
		}
	}
}

func TestKeys(t *testing.T) {
	for size := 0; size < 10; size++ {
		var want []int
		m := make(map[int]int)
		for i := range size {
			m[i] = i
			want = append(want, i)
		}

		var got []int
		for k := range Keys(m) {

	// detail ever changes.
	// [1] https://etcd.io/docs/v3.5/learning/api_guarantees/#isolation-level-and-consistency-of-replicas
	ctx, store, etcdClient := testSetup(t)

	dir := "/testing"
	key := dir + "/testkey"
	out := &example.Pod{}
	obj := &example.Pod{ObjectMeta: metav1.ObjectMeta{Name: "foo", SelfLink: "testlink"}}

	if err := store.Create(ctx, key, obj, out, 0); err != nil {
		t.Fatalf("Set failed: %v", err)
	}