package server

import "testing"

// TestCSVSafe checks the CSV/spreadsheet formula-injection guard used by the admin Messages
// export: a leading formula trigger is quoted, everything else is left intact.
func TestCSVSafe(t *testing.T) {
	tests := []struct{ in, want string }{
		{"", ""},
		{"hello", "hello"},
		{"=1+1", "'=1+1"},
		{"+cmd", "'+cmd"},
		{"-2", "'-2"},
		{"@SUM(A1)", "'@SUM(A1)"},
		{"\tx", "'\tx"},
		{"\rx", "'\rx"},
		{"good luck", "good luck"},
		{"a=b", "a=b"}, // a formula char that is not leading must be left untouched
	}
	for _, tc := range tests {
		if got := csvSafe(tc.in); got != tc.want {
			t.Errorf("csvSafe(%q) = %q, want %q", tc.in, got, tc.want)
		}
	}
}