package toolkit

import (
	"os"
	"testing"
)

func TestExpand(t *testing.T) {
	t.Setenv("TOOLKIT_TEST_VAR", "value")
	got := string(Expand([]byte(`{"x":"${TOOLKIT_TEST_VAR}","y":"static"}`)))
	want := `{"x":"value","y":"static"}`
	if got != want {
		t.Errorf("Expand = %q, want %q", got, want)
	}

	// Неизвестная переменная → пустая строка (fail-closed далее по валидации).
	os.Unsetenv("TOOLKIT_TEST_MISSING")
	got = string(Expand([]byte(`"${TOOLKIT_TEST_MISSING}"`)))
	if got != `""` {
		t.Errorf("Expand(missing) = %q, want empty", got)
	}
}

func TestHealth(t *testing.T) {
	orig := os.Args
	defer func() { os.Args = orig }()

	os.Args = []string{"prog", "--health"}
	if !Health() {
		t.Error("Health() = false with --health")
	}
	os.Args = []string{"prog", "-config", "x"}
	if Health() {
		t.Error("Health() = true without --health")
	}
}