// Copyright (c) 2026 Storm Dragon
// SPDX-License-Identifier: GPL-3.0-or-later

package presentation

import "testing"

func TestIndentationCountsVisibleWhitespaceAndIgnoresBlankRows(t *testing.T) {
	for _, trial := range []struct {
		text  string
		level int
		valid bool
	}{
		{"value", 0, true}, {"    value  ", 4, true}, {" \tvalue", 8, true},
		{"\t \tvalue", 16, true}, {"\u00a0\u2003É", 2, true},
		{"", 0, false}, {"   ", 0, false}, {"\t  ", 0, false},
	} {
		level, valid := Indentation_level([]rune(trial.text))
		if level != trial.level || valid != trial.valid {
			t.Fatalf("%q: %d %v", trial.text, level, valid)
		}
	}
}