/* NAME lex_test.go DESCRIPTION See Readme.md AUTHOR Dan Kortschak <dan@ausocean.org> LICENSE lex_test.go is Copyright (C) 2017 the Australian Ocean Lab (AusOcean) It is free software: you can redistribute it and/or modify them under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. It is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with revid in gpl.txt. If not, see http://www.gnu.org/licenses. */ package lex import ( "bytes" "fmt" "reflect" "testing" "time" ) var h264Tests = []struct { name string input []byte delay time.Duration want [][]byte err error }{ { name: "empty", }, { name: "null short", input: []byte{0x00, 0x00, 0x01, 0x0}, delay: 0, want: [][]byte{{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x0}}, }, { name: "null short delayed", input: []byte{0x00, 0x00, 0x01, 0x0}, delay: time.Millisecond, want: [][]byte{{0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x0}}, }, { name: "full short type 1", input: []byte{ 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h', 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: 0, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full short type 5", input: []byte{ 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h', 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: 0, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full short type 8", input: []byte{ 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h', 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: 0, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full short delayed", input: []byte{ 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h', 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: time.Millisecond, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full long type 1", input: []byte{ 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: 0, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full long type 5", input: []byte{ 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: 0, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x45, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full long type 8", input: []byte{ 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: 0, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x48, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, { name: "full long delayed", input: []byte{ 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd', }, delay: time.Millisecond, want: [][]byte{ {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'u', 'l', 'l', 0x00, 0x00, 0x00, 0x01, 0x00, 'f', 'r', 'a', 'm', 'e', 0x00, 0x00, 0x00, 0x01, 0x41, 'w', 'i', 't', 'h'}, {0x0, 0x0, 0x1, 0x9, 0xf0, 0x00, 0x00, 0x00, 0x01, 0x00, 'l', 'e', 'n', 'g', 't', 'h', 0x00, 0x00, 0x00, 0x01, 0x00, 's', 'p', 'r', 'e', 'a', 'd'}, }, }, } func TestH264(t *testing.T) { for _, test := range h264Tests { var buf chunkEncoder err := H264(&buf, bytes.NewReader(test.input), test.delay) if fmt.Sprint(err) != fmt.Sprint(test.err) { t.Errorf("unexpected error for %q: got:%v want:%v", test.name, err, test.err) } if err != nil { continue } got := [][]byte(buf) if !reflect.DeepEqual(got, test.want) { t.Errorf("unexpected result for %q:\ngot :%#v\nwant:%#v", test.name, got, test.want) } } } var mjpegTests = []struct { name string input []byte delay time.Duration want [][]byte err error }{ { name: "empty", }, { name: "null", input: []byte{0xff, 0xd8, 0xff, 0xd9}, delay: 0, want: [][]byte{{0xff, 0xd8, 0xff, 0xd9}}, }, { name: "null delayed", input: []byte{0xff, 0xd8, 0xff, 0xd9}, delay: time.Millisecond, want: [][]byte{{0xff, 0xd8, 0xff, 0xd9}}, }, { name: "full", input: []byte{ 0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9, 0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9, 0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9, 0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9, 0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9, }, delay: 0, want: [][]byte{ {0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9}, {0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9}, {0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9}, {0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9}, {0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9}, }, }, { name: "full delayed", input: []byte{ 0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9, 0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9, 0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9, 0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9, 0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9, }, delay: time.Millisecond, want: [][]byte{ {0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9}, {0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9}, {0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9}, {0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9}, {0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9}, }, }, } func TestMJEG(t *testing.T) { for _, test := range mjpegTests { var buf chunkEncoder err := MJPEG(&buf, bytes.NewReader(test.input), test.delay) if fmt.Sprint(err) != fmt.Sprint(test.err) { t.Errorf("unexpected error for %q: got:%v want:%v", test.name, err, test.err) } if err != nil { continue } got := [][]byte(buf) if !reflect.DeepEqual(got, test.want) { t.Errorf("unexpected result for %q:\ngot :%#v\nwant:%#v", test.name, got, test.want) } } } type chunkEncoder [][]byte func (e *chunkEncoder) Encode(b []byte) error { *e = append(*e, b) return nil } func (*chunkEncoder) Stream() <-chan []byte { panic("INVALID USE") } func TestScannerReadByte(t *testing.T) { data := []byte("Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.") for _, size := range []int{1, 2, 8, 1 << 10} { r := newScanner(bytes.NewReader(data), make([]byte, size)) var got []byte for { b, err := r.readByte() if err != nil { break } got = append(got, b) } if !bytes.Equal(got, data) { t.Errorf("unexpected result for buffer size %d:\ngot :%q\nwant:%q", size, got, data) } } } func TestScannerScanUntilZero(t *testing.T) { data := []byte("Lorem ipsum dolor sit amet, consectetur adipiscing elit,\x00 sed do eiusmod tempor incididunt ut \x00labore et dolore magna aliqua.") for _, size := range []int{1, 2, 8, 1 << 10} { r := newScanner(bytes.NewReader(data), make([]byte, size)) var got [][]byte for { buf, _, err := r.scanUntilZeroInto(nil) got = append(got, buf) if err != nil { break } } want := bytes.SplitAfter(data, []byte{0}) if !reflect.DeepEqual(got, want) { t.Errorf("unexpected result for buffer zie %d:\ngot :%q\nwant:%q", size, got, want) } } }