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package astisub_test
import (
"bytes"
"io/ioutil"
"os"
"strings"
"testing"
"time"
"github.com/asticode/go-astisub"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestSRT(t *testing.T) {
// Open
s, err := astisub.OpenFile("./testdata/example-in.srt")
assert.NoError(t, err)
assertSubtitleItems(t, s)
// No subtitles to write
w := &bytes.Buffer{}
err = astisub.Subtitles{}.WriteToSRT(w)
assert.EqualError(t, err, astisub.ErrNoSubtitlesToWrite.Error())
// Write
c, err := ioutil.ReadFile("./testdata/example-out.srt")
assert.NoError(t, err)
err = s.WriteToSRT(w)
assert.NoError(t, err)
assert.Equal(t, string(c), w.String())
}
func TestSRTMissingSequence(t *testing.T) {
// Open
s, err := astisub.OpenFile("./testdata/missing-sequence-in.srt")
assert.NoError(t, err)
assertSubtitleItems(t, s)
// No subtitles to write
w := &bytes.Buffer{}
err = astisub.Subtitles{}.WriteToSRT(w)
assert.EqualError(t, err, astisub.ErrNoSubtitlesToWrite.Error())
// Write
c, err := ioutil.ReadFile("./testdata/example-out.srt")
assert.NoError(t, err)
err = s.WriteToSRT(w)
assert.NoError(t, err)
assert.Equal(t, string(c), w.String())
}
func TestNonUTF8SRT(t *testing.T) {
_, err := astisub.OpenFile("./testdata/example-in-non-utf8.srt")
assert.Error(t, err)
}
func TestSRTStyled(t *testing.T) {
// Open
s, err := astisub.OpenFile("./testdata/example-in-styled.srt")
assert.NoError(t, err)
// assert the items are properly parsed
assert.Len(t, s.Items, 10)
assert.Equal(t, 17*time.Second+985*time.Millisecond, s.Items[0].StartAt)
assert.Equal(t, 20*time.Second+521*time.Millisecond, s.Items[0].EndAt)
assert.Equal(t, "[instrumental music]", s.Items[0].Lines[0].String())
assert.Equal(t, 47*time.Second+115*time.Millisecond, s.Items[1].StartAt)
assert.Equal(t, 48*time.Second+282*time.Millisecond, s.Items[1].EndAt)
assert.Equal(t, "[ticks]", s.Items[1].Lines[0].String())
assert.Equal(t, 58*time.Second+192*time.Millisecond, s.Items[2].StartAt)
assert.Equal(t, 59*time.Second+727*time.Millisecond, s.Items[2].EndAt)
assert.Equal(t, "[instrumental music]", s.Items[2].Lines[0].String())
assert.Equal(t, 1*time.Minute+1*time.Second+662*time.Millisecond, s.Items[3].StartAt)
assert.Equal(t, 1*time.Minute+3*time.Second+63*time.Millisecond, s.Items[3].EndAt)
assert.Equal(t, "[dog barking]", s.Items[3].Lines[0].String())
assert.Equal(t, 1*time.Minute+26*time.Second+787*time.Millisecond, s.Items[4].StartAt)
assert.Equal(t, 1*time.Minute+29*time.Second+523*time.Millisecond, s.Items[4].EndAt)
assert.Equal(t, "[beeping]", s.Items[4].Lines[0].String())
assert.Equal(t, 1*time.Minute+29*time.Second+590*time.Millisecond, s.Items[5].StartAt)
assert.Equal(t, 1*time.Minute+31*time.Second+992*time.Millisecond, s.Items[5].EndAt)
assert.Equal(t, "[automated]", s.Items[5].Lines[0].String())
assert.Equal(t, "'The time is 7:35.'", s.Items[5].Lines[1].String())
assert.Equal(t, "Test with multi line italics", s.Items[6].Lines[0].String())
assert.Equal(t, "Terminated on the next line", s.Items[6].Lines[1].String())
assert.Equal(t, "Unterminated styles", s.Items[7].Lines[0].String())
assert.Equal(t, "Do no fall to the next item", s.Items[8].Lines[0].String())
assert.Equal(t, "x", s.Items[9].Lines[0].Items[0].Text)
assert.Equal(t, "^3 * ", s.Items[9].Lines[0].Items[1].Text)
assert.Equal(t, "x", s.Items[9].Lines[0].Items[2].Text)
assert.Equal(t, " = 100", s.Items[9].Lines[0].Items[3].Text)
// assert the styles of the items
assert.Equal(t, "#00ff00", *s.Items[0].Lines[0].Items[0].InlineStyle.SRTColor)
assert.True(t, s.Items[0].Lines[0].Items[0].InlineStyle.SRTBold)
assert.False(t, s.Items[0].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[0].Lines[0].Items[0].InlineStyle.SRTUnderline)
assert.Equal(t, "#ff00ff", *s.Items[1].Lines[0].Items[0].InlineStyle.SRTColor)
assert.False(t, s.Items[1].Lines[0].Items[0].InlineStyle.SRTBold)
assert.False(t, s.Items[1].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[1].Lines[0].Items[0].InlineStyle.SRTUnderline)
assert.Equal(t, "#00ff00", *s.Items[2].Lines[0].Items[0].InlineStyle.SRTColor)
assert.False(t, s.Items[2].Lines[0].Items[0].InlineStyle.SRTBold)
assert.False(t, s.Items[2].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[2].Lines[0].Items[0].InlineStyle.SRTUnderline)
assert.Nil(t, s.Items[3].Lines[0].Items[0].InlineStyle.SRTColor)
assert.True(t, s.Items[3].Lines[0].Items[0].InlineStyle.SRTBold)
assert.False(t, s.Items[3].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.True(t, s.Items[3].Lines[0].Items[0].InlineStyle.SRTUnderline)
assert.Nil(t, s.Items[4].Lines[0].Items[0].InlineStyle)
assert.Nil(t, s.Items[5].Lines[0].Items[0].InlineStyle)
assert.Nil(t, s.Items[5].Lines[1].Items[0].InlineStyle.SRTColor)
assert.False(t, s.Items[5].Lines[1].Items[0].InlineStyle.SRTBold)
assert.True(t, s.Items[5].Lines[1].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[5].Lines[1].Items[0].InlineStyle.SRTUnderline)
assert.True(t, s.Items[6].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[6].Lines[0].Items[0].InlineStyle.SRTUnderline)
assert.False(t, s.Items[6].Lines[0].Items[0].InlineStyle.SRTBold)
assert.Nil(t, s.Items[6].Lines[0].Items[0].InlineStyle.SRTColor)
assert.True(t, s.Items[6].Lines[1].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[6].Lines[1].Items[0].InlineStyle.SRTUnderline)
assert.False(t, s.Items[6].Lines[1].Items[0].InlineStyle.SRTBold)
assert.Nil(t, s.Items[6].Lines[1].Items[0].InlineStyle.SRTColor)
assert.True(t, s.Items[7].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.False(t, s.Items[7].Lines[0].Items[0].InlineStyle.SRTUnderline)
assert.False(t, s.Items[7].Lines[0].Items[0].InlineStyle.SRTBold)
assert.Nil(t, s.Items[7].Lines[0].Items[0].InlineStyle.SRTColor)
assert.Nil(t, s.Items[8].Lines[0].Items[0].InlineStyle)
assert.True(t, s.Items[9].Lines[0].Items[0].InlineStyle.SRTItalics)
assert.Nil(t, s.Items[9].Lines[0].Items[1].InlineStyle)
assert.True(t, s.Items[9].Lines[0].Items[2].InlineStyle.SRTItalics)
assert.Nil(t, s.Items[9].Lines[0].Items[3].InlineStyle)
// Write to srt
w := &bytes.Buffer{}
c, err := os.ReadFile("./testdata/example-out-styled.srt")
assert.NoError(t, err)
err = s.WriteToSRT(w)
assert.NoError(t, err)
assert.Equal(t, string(c), w.String())
// Write to WebVTT
w = &bytes.Buffer{}
c, err = os.ReadFile("./testdata/example-out-styled.vtt")
assert.NoError(t, err)
err = s.WriteToWebVTT(w)
assert.NoError(t, err)
assert.Equal(t, string(c), w.String())
}
func TestSRTParseDuration(t *testing.T) {
testData := `
1
00:00:01.876-->00:0:03.390
Duration without enclosing space
2
00:00:04:609-->00:0:05:985
Duration without colon milliseconds`
s, err := astisub.ReadFromSRT(strings.NewReader(testData))
require.NoError(t, err)
require.Len(t, s.Items, 2)
assert.Equal(t, 1*time.Second+876*time.Millisecond, s.Items[0].StartAt)
assert.Equal(t, 3*time.Second+390*time.Millisecond, s.Items[0].EndAt)
assert.Equal(t, "Duration without enclosing space", s.Items[0].Lines[0].String())
assert.Equal(t, 4*time.Second+609*time.Millisecond, s.Items[1].StartAt)
assert.Equal(t, 5*time.Second+985*time.Millisecond, s.Items[1].EndAt)
assert.Equal(t, "Duration without colon milliseconds", s.Items[1].Lines[0].String())
}