navidrome/model/lyrics_srt_test.go
ranokay cd67647cd9
fix(lyrics): canonicalize structured timing
- preserve source order, exact ends, pauses, and overlapping voices
- validate cue timing and UTF-8 geometry without mutating source data

Signed-off-by: ranokay <github@ranokay.com>
2026-07-25 10:33:51 +03:00

54 lines
1.7 KiB
Go

package model
import (
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
)
var _ = Describe("parseSRT", func() {
It("parses SRT blocks with the default language", func() {
content := []byte("1\n00:00:01,000 --> 00:00:02,000\nFirst subtitle\n\n2\n00:00:03,000 --> 00:00:04,000\nSecond subtitle")
list, err := parseSRT("xxx", content)
Expect(err).ToNot(HaveOccurred())
Expect(list).To(HaveLen(1))
Expect(list[0].Lang).To(Equal("xxx"))
Expect(list[0].Synced).To(BeTrue())
Expect(list[0].Line).To(Equal([]Line{
{Start: new(int64(1000)), End: new(int64(2000)), Value: "First subtitle"},
{Start: new(int64(3000)), End: new(int64(4000)), Value: "Second subtitle"},
}))
})
It("returns nil for input with no valid blocks", func() {
list, err := parseSRT("xxx", []byte("not actually an srt file"))
Expect(err).ToNot(HaveOccurred())
Expect(list).To(BeNil())
})
It("preserves zero durations, overlaps, and document order", func() {
content := []byte("1\n00:00:05,000 --> 00:00:05,000\nMarker\n\n2\n00:00:03,000 --> 00:00:06,000\nEarlier overlapping line")
list, err := parseSRT("eng", content)
Expect(err).ToNot(HaveOccurred())
Expect(list[0].Line).To(Equal([]Line{
{Start: new(int64(5000)), End: new(int64(5000)), Value: "Marker"},
{Start: new(int64(3000)), End: new(int64(6000)), Value: "Earlier overlapping line"},
}))
})
DescribeTable("rejects invalid SRT timing",
func(timing string) {
list, err := parseSRT("eng", []byte("1\n"+timing+"\nInvalid"))
Expect(err).To(HaveOccurred())
Expect(list).To(BeNil())
},
Entry("negative duration", "00:00:02,000 --> 00:00:01,999"),
Entry("minute out of range", "00:60:00,000 --> 01:00:01,000"),
Entry("second out of range", "00:00:60,000 --> 00:01:01,000"),
)
})