// only possibilities here are that we ran 1 command or we ran 0.
	if ct.execer.(*fakeexec.FakeExec).CommandCalls != 1 {
		return ""
	}
	return strings.Join(ct.fcmd.CombinedOutputLog[0], " ")
}

func TestExec(t *testing.T) {
	testCases := []struct {
		args      []string
		result    fakeexec.FakeAction
		expectErr bool
	}{
		{