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// SPDX-FileCopyrightText: 2023 The Pion community <https://pion.ly>
// SPDX-License-Identifier: MIT
package extension
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestExtensionUseSRTP(t *testing.T) {
t.Run("No MasterKeyIdentifier", func(t *testing.T) {
rawUseSRTP := []byte{0x00, 0x0e, 0x00, 0x05, 0x00, 0x02, 0x00, 0x01, 0x00}
parsedUseSRTP := &UseSRTP{
ProtectionProfiles: []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
MasterKeyIdentifier: []byte{},
}
marshaled, err := parsedUseSRTP.Marshal()
assert.NoError(t, err)
assert.Equal(t, rawUseSRTP, marshaled)
unmarshaled := &UseSRTP{}
assert.NoError(t, unmarshaled.Unmarshal(rawUseSRTP))
assert.Equal(t, parsedUseSRTP, unmarshaled)
})
t.Run("With MasterKeyIdentifier", func(t *testing.T) {
rawUseSRTP := []byte{0x00, 0x0e, 0x00, 0x0a, 0x00, 0x02, 0x00, 0x01, 0x05, 0xA, 0xB, 0xC, 0xD, 0xE}
parsedUseSRTP := &UseSRTP{
ProtectionProfiles: []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
MasterKeyIdentifier: []byte{0xA, 0xB, 0xC, 0xD, 0xE},
}
marshaled, err := parsedUseSRTP.Marshal()
assert.NoError(t, err)
assert.Equal(t, rawUseSRTP, marshaled)
unmarshaled := &UseSRTP{}
assert.NoError(t, unmarshaled.Unmarshal(rawUseSRTP))
assert.Equal(t, parsedUseSRTP, unmarshaled)
})
t.Run("Invalid Lengths", func(t *testing.T) {
unmarshaled := &UseSRTP{}
err := unmarshaled.Unmarshal([]byte{0x00, 0x0e, 0x00, 0x05, 0x00, 0x04, 0x00, 0x01, 0x00})
assert.ErrorIs(t, err, errLengthMismatch)
err = unmarshaled.Unmarshal([]byte{0x00, 0x0e, 0x00, 0x0a, 0x00, 0x02, 0x00, 0x01, 0x01})
assert.ErrorIs(t, err, errLengthMismatch)
_, err = (&UseSRTP{
ProtectionProfiles: []SRTPProtectionProfile{SRTP_AES128_CM_HMAC_SHA1_80},
MasterKeyIdentifier: make([]byte, 500),
}).Marshal()
assert.ErrorIs(t, err, errMasterKeyIdentifierTooLarge)
})
}
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