package main

import (
	"io"
	"strings"
	"testing"
)

// The seed and the daemon read ONE environment variable and have to name ONE identity with it. The
// daemon trims it (config.Load) and this side did not, so a value with a stray newline signed in as
// the trimmed identity and then looked up the padded one — after the sign-in had already created the
// account and spent its one-time signup grant, leaving a half-seeded stand (acceptance dofix ФП-6).
//
// Pinned where a unit test can reach it: a subject that is nothing but padding is the empty subject,
// and the walk ends before it touches anything. The URL names a port nothing serves, so "it went to
// the daemon anyway" fails with a different, recognisable message rather than passing.
func TestASubjectThatIsOnlyPaddingIsNoSubject(t *testing.T) {
	err := seed(t.Context(), nil, []string{"--url", "http://127.0.0.1:1", "--subject", " \n\t"}, io.Discard)
	if err == nil {
		t.Fatal("a blank subject was accepted")
	}
	if !strings.Contains(err.Error(), "--subject") {
		t.Fatalf("the walk carried a blank subject to the daemon: %v", err)
	}
}