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// License: GPLv3 Copyright: 2022, Kovid Goyal, <kovid at kovidgoyal.net>
package wcswidth
import (
"testing"
)
func TestEscapeCodeParsing(t *testing.T) {
type test_parse_collection struct {
actual, expected string
}
var d test_parse_collection
add := func(prefix string, b []byte) error {
d.actual += "\n" + prefix + ": " + string(b)
return nil
}
var test_parser = EscapeCodeParser{
HandleCSI: func(b []byte) error { return add("CSI", b) },
HandleOSC: func(b []byte) error { return add("OSC", b) },
HandleDCS: func(b []byte) error { return add("DCS", b) },
HandleSOS: func(b []byte) error { return add("SOS", b) },
HandlePM: func(b []byte) error { return add("PM", b) },
HandleAPC: func(b []byte) error { return add("APC", b) },
HandleRune: func(b rune) error { return add("CH", []byte(string(b))) },
}
reset_test_parser := func() {
test_parser.Reset()
d = test_parse_collection{}
}
check_test_result := func(raw string) {
if d.actual != d.expected {
t.Fatalf("parsing: %#v actual != expected: %#v != %#v", raw, string(d.actual), string(d.expected))
}
}
test := func(raw string, expected string) {
reset_test_parser()
d.expected = "\n" + expected
test_parser.Parse([]byte(raw))
check_test_result(raw)
}
test("\x1b[31m\xc2\x9bm", "CSI: 31m\nCSI: m")
test("\x1b[-31m\xc2\x9bm", "CSI: -31m\nCSI: m")
test("ab\nc", "CH: a\nCH: b\nCH: \n\nCH: c")
test("a\x1b[200m\x1b[mb\x1b[5:3;2;4~", "CH: a\nCSI: 200m\nCSI: m\nCH: b\nCSI: 5:3;2;4~")
test("\x1b[200~a\x1b[201m\x1b[201~\x1b[x", "CH: a\nCH: \x1b\nCH: [\nCH: 2\nCH: 0\nCH: 1\nCH: m\nCSI: x")
test("a\x1bPb\x1b\x1bc\x1b\\d", "CH: a\nDCS: b\x1bc\nCH: d")
test("a\x1b_b\x1b\x1b\x1bc\x1b\\d", "CH: a\nAPC: b\x1b\x1bc\nCH: d")
test("\x1b]X\x07\x1b]X\x1b\x07\x1b\\", "OSC: X\nOSC: X\x1b\x07")
}
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