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psi_test.go
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psi_test.go
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package mpegts
import (
"testing"
"github.com/stretchr/testify/assert"
)
type TestData struct {
assert *assert.Assertions
section PSI
expectedHandler bool
expectedError bool
}
var testPayload = []byte{
0x00, 0xB0, 0x25, 0x00, 0x01, 0xC3, 0x00, 0x00,
0x00, 0x00, 0xE0, 0x10, 0x00, 0x01, 0xE4, 0x07,
0x00, 0x02, 0xE4, 0x08, 0x00, 0x03, 0xE4, 0x09,
0x00, 0x04, 0xE4, 0x0A, 0x00, 0x05, 0xE4, 0x0B,
0x00, 0x06, 0xE4, 0x0C, 0xB2, 0xD1, 0xB8, 0xDE,
}
func (t *TestData) onPSI(err error) {
if t.expectedError {
t.assert.Error(err, "expected error")
return
}
if !t.assert.NoError(err, "unexpected error") {
return
}
section := t.section
buffer := section.Payload()
t.assert.True(t.expectedHandler, "unexpected handler call")
t.assert.Greater(len(buffer), 3+4, "buffer length should be at least 7 bytes")
t.assert.Equal(uint8(0x00), section.TableID)
t.assert.Equal(uint8(1), section.Version)
t.assert.Equal(uint8(0), section.SectionNumber)
t.assert.Equal(uint8(0), section.LastSectionNumber)
t.assert.Equal(uint32(0xB2D1B8DE), section.CRC)
t.assert.Equal(testPayload, buffer)
}
func (t *TestData) clear() {
t.section.Clear()
t.expectedHandler = true
t.expectedError = false
}
func makePacket(data []byte) TS {
p := NewTS(0)
copy(p, data)
return p
}
func Test_Assemble_1(t *testing.T) {
test := TestData{
assert: assert.New(t),
}
t.Run("TS without payload", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x00, 0x00, 0x10,
})
test.clear()
test.expectedHandler = false
test.section.Assemble(packet, test.onPSI)
})
t.Run("PSI begins after the pointer field", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x10,
0,
0x00, 0xB0, 0x25, 0x00, 0x01, 0xC3, 0x00, 0x00,
0x00, 0x00, 0xE0, 0x10, 0x00, 0x01, 0xE4, 0x07,
0x00, 0x02, 0xE4, 0x08, 0x00, 0x03, 0xE4, 0x09,
0x00, 0x04, 0xE4, 0x0A, 0x00, 0x05, 0xE4, 0x0B,
0x00, 0x06, 0xE4, 0x0C, 0xB2, 0xD1, 0xB8, 0xDE,
})
test.clear()
test.section.Assemble(packet, test.onPSI)
})
t.Run("PSI with pointer field", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x10,
8,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0xB0, 0x25, 0x00, 0x01, 0xC3, 0x00, 0x00,
0x00, 0x00, 0xE0, 0x10, 0x00, 0x01, 0xE4, 0x07,
0x00, 0x02, 0xE4, 0x08, 0x00, 0x03, 0xE4, 0x09,
0x00, 0x04, 0xE4, 0x0A, 0x00, 0x05, 0xE4, 0x0B,
0x00, 0x06, 0xE4, 0x0C, 0xB2, 0xD1, 0xB8, 0xDE,
})
test.clear()
test.section.Assemble(packet, test.onPSI)
})
t.Run("PSI in two packets. Second packet without payload start", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x10,
173,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0xB0, 0x25, 0x00, 0x01, 0xC3, 0x00, 0x00,
0x00, 0x00,
})
test.clear()
test.expectedHandler = false
test.section.Assemble(packet, test.onPSI)
packet = makePacket([]byte{
0x47, 0x00, 0x00, 0x11,
0xE0, 0x10, 0x00, 0x01, 0xE4, 0x07, 0x00, 0x02,
0xE4, 0x08, 0x00, 0x03, 0xE4, 0x09, 0x00, 0x04,
0xE4, 0x0A, 0x00, 0x05, 0xE4, 0x0B, 0x00, 0x06,
0xE4, 0x0C, 0xB2, 0xD1, 0xB8, 0xDE,
})
test.expectedHandler = true
test.section.Assemble(packet, test.onPSI)
})
t.Run("PSI in two packets. Second packet has payload start", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x10,
173,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0x00, 0xb0, 0x25, 0x00, 0x01, 0xc3, 0x00, 0x00,
0x00, 0x00,
})
test.clear()
test.expectedHandler = false
test.section.Assemble(packet, test.onPSI)
packet = makePacket([]byte{
0x47, 0x40, 0x00, 0x11,
30,
0xE0, 0x10, 0x00, 0x01, 0xE4, 0x07, 0x00, 0x02,
0xE4, 0x08, 0x00, 0x03, 0xE4, 0x09, 0x00, 0x04,
0xE4, 0x0A, 0x00, 0x05, 0xE4, 0x0B, 0x00, 0x06,
0xE4, 0x0C, 0xB2, 0xD1, 0xB8, 0xDE,
// next psi (incomplete)
0x00, 0x00, 0xFF,
})
test.expectedHandler = true
test.section.Assemble(packet, test.onPSI)
})
t.Run("only 1 byte after pointer field", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x30,
181, /* AF Size */
0x00, /* AF with stuffing only */
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
0xFF, 0xFF, 0xFF, 0xFF,
// payload
0,
0x00,
})
test.clear()
test.expectedHandler = false
test.section.Assemble(packet, test.onPSI)
})
}
func Test_AssembleErrors(t *testing.T) {
test := TestData{
assert: assert.New(t),
}
t.Run("pointer field out of range", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x10, 200,
})
test.clear()
test.expectedError = true
test.section.Assemble(packet, test.onPSI)
})
t.Run("section length is too big", func(t *testing.T) {
packet := makePacket([]byte{
0x47, 0x40, 0x00, 0x10,
0,
0x00, 0x0F, 0xFF,
})
test.clear()
test.expectedError = true
test.section.Assemble(packet, test.onPSI)
})
}