mirror of https://bitbucket.org/ausocean/av.git
134 lines
3.4 KiB
Go
134 lines
3.4 KiB
Go
/*
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NAME
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lex_test.go
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DESCRIPTION
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lex_test.go provides testing for the lexer in lex.go.
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AUTHOR
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Dan Kortschak <dan@ausocean.org>
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LICENSE
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lex_test.go is Copyright (C) 2017 the Australian Ocean Lab (AusOcean)
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It is free software: you can redistribute it and/or modify them
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with revid in gpl.txt. If not, see http://www.gnu.org/licenses.
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*/
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// lex_test.go provides testing for the lexer in lex.go.
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package jpeg
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import (
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"bytes"
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"fmt"
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"io"
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"reflect"
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"testing"
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"time"
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"bitbucket.org/ausocean/utils/logging"
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)
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var jpegTests = []struct {
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name string
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input []byte
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delay time.Duration
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want [][]byte
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err error
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}{
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{
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name: "empty",
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err: io.ErrUnexpectedEOF,
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},
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{
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name: "null",
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input: []byte{0xff, 0xd8, 0xff, 0xd9},
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delay: 0,
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want: [][]byte{{0xff, 0xd8, 0xff, 0xd9}},
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err: io.ErrUnexpectedEOF,
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},
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{
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name: "null delayed",
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input: []byte{0xff, 0xd8, 0xff, 0xd9},
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delay: time.Millisecond,
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want: [][]byte{{0xff, 0xd8, 0xff, 0xd9}},
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err: io.ErrUnexpectedEOF,
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},
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{
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name: "full",
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input: []byte{
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0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9,
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0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9,
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0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9,
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0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9,
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0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9,
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},
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delay: 0,
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want: [][]byte{
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{0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9},
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{0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9},
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{0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9},
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{0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9},
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{0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9},
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},
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err: io.ErrUnexpectedEOF,
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},
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{
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name: "full delayed",
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input: []byte{
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0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9,
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0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9,
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0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9,
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0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9,
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0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9,
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},
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delay: time.Millisecond,
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want: [][]byte{
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{0xff, 0xd8, 'f', 'u', 'l', 'l', 0xff, 0xd9},
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{0xff, 0xd8, 'f', 'r', 'a', 'm', 'e', 0xff, 0xd9},
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{0xff, 0xd8, 'w', 'i', 't', 'h', 0xff, 0xd9},
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{0xff, 0xd8, 'l', 'e', 'n', 'g', 't', 'h', 0xff, 0xd9},
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{0xff, 0xd8, 's', 'p', 'r', 'e', 'a', 'd', 0xff, 0xd9},
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},
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err: io.ErrUnexpectedEOF,
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},
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}
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func TestLex(t *testing.T) {
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Log = (*logging.TestLogger)(t)
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for _, test := range jpegTests {
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var buf chunkEncoder
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err := Lex(&buf, bytes.NewReader(test.input), test.delay)
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if fmt.Sprint(err) != fmt.Sprint(test.err) {
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t.Errorf("unexpected error for %q: got:%v want:%v", test.name, err, test.err)
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}
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if err != nil {
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continue
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}
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got := [][]byte(buf)
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if !reflect.DeepEqual(got, test.want) {
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t.Errorf("unexpected result for %q:\ngot :%#v\nwant:%#v", test.name, got, test.want)
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}
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}
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}
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type chunkEncoder [][]byte
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func (e *chunkEncoder) Write(b []byte) (int, error) {
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*e = append(*e, b)
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return len(b), nil
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}
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func (*chunkEncoder) Stream() <-chan []byte { panic("INVALID USE") }
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