package editor

import (
	"testing"
)

// TestByteOffsetToLineCol_Logical verifies that the current logic
// only handles logical lines (newline-delimited).
func TestByteOffsetToLineCol_Logical(t *testing.T) {
	buf := "hello\nworld"
	// 012345 67890
	
	// Logical line 0: "hello" (0-4), pos 5 is '\n', line 1 starts at 6
	line, col := byteOffsetToLineCol(buf, 5)
	if line != 0 || col != 5 {
		t.Errorf("expected (0, 5) for pos 5, got (%d, %d)", line, col)
	}

	line, col = byteOffsetToLineCol(buf, 6)
	if line != 1 || col != 0 {
		t.Errorf("expected (1, 0) for pos 6, got (%d, %d)", line, col)
	}
}