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package nmea
import (
"github.com/stretchr/testify/assert"
"testing"
)
func TestBBM(t *testing.T) {
var tests = []struct {
name string
raw string
err string
msg BBM
}{
{
name: "Good single fragment message",
raw: "!AIBBM,26,2,1,3,8,177KQJ5000G?tO`K>RA1wUbN0TKH,0*2C",
msg: BBM{
NumFragments: 26,
FragmentNumber: 2,
MessageID: 1,
Channel: "3",
VDLMessageNumber: 8,
Payload: []byte{
0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, // 10
0x1, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x1, 0x0, 0x1, // 20
0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, // 30
0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x1, // 40
0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // 50
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // 60
0x0, 0x1, 0x0, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, // 70
0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x1, // 80
0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x1, 0x0, 0x0, 0x0, // 90
0x0, 0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x1, 0x1, // 100
0x1, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, // 110
0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, // 120
0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x1, 0x0, 0x0, 0x1, // 130
0x0, 0x1, 0x1, 0x0, 0x1, 0x0, 0x1, 0x0, 0x0, 0x1, // 140
0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, // 150
0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x1, 0x0, // 160
0x1, 0x1, 0x0, 0x1, 0x1, 0x0, 0x0, 0x0, // 168
},
},
},
{
name: "Good single fragment message with padding",
raw: "!AIBBM,26,2,1,3,8,H77nSfPh4U=<E`H4U8G;:222220,2*6C",
msg: BBM{
NumFragments: 26,
FragmentNumber: 2,
MessageID: 1,
Channel: "3",
VDLMessageNumber: 8,
Payload: []byte{
0, 1, 1, 0, 0, 0, 0, 0, 0, 1,
1, 1, 0, 0, 0, 1, 1, 1, 1, 1,
0, 1, 1, 0, 1, 0, 0, 0, 1, 1,
1, 0, 1, 1, 1, 0, 1, 0, 0, 0,
0, 0, 1, 1, 0, 0, 0, 0, 0, 0,
0, 1, 0, 0, 1, 0, 0, 1, 0, 1,
0, 0, 1, 1, 0, 1, 0, 0, 1, 1,
0, 0, 0, 1, 0, 1, 0, 1, 1, 0,
1, 0, 0, 0, 0, 1, 1, 0, 0, 0,
0, 0, 0, 1, 0, 0, 1, 0, 0, 1,
0, 1, 0, 0, 1, 0, 0, 0, 0, 1,
0, 1, 1, 1, 0, 0, 1, 0, 1, 1,
0, 0, 1, 0, 1, 0, 0, 0, 0, 0,
1, 0, 0, 0, 0, 0, 1, 0, 0, 0,
0, 0, 1, 0, 0, 0, 0, 0, 1, 0,
0, 0, 0, 0, 1, 0, 0, 0, 0, 0,
},
},
},
{
name: "Empty payload",
raw: "!AIBBM,26,2,1,3,8,,0*55",
msg: BBM{
NumFragments: 26,
FragmentNumber: 2,
MessageID: 1,
Channel: "3",
VDLMessageNumber: 8,
Payload: []byte{},
},
},
{
name: "Invalid number of fragments",
raw: "!AIBBM,x,2,1,3,8,177KQJ5000G?tO`K>RA1wUbN0TKH,0*50",
err: "nmea: AIBBM invalid number of fragments: x",
},
{
name: "Invalid symbol in payload",
raw: "!AIBBM,26,2,1,3,8,1 1,0*75",
err: "nmea: AIBBM invalid payload: data byte",
},
{
name: "Negative number of fill bits",
raw: "!AIBBM,26,2,1,3,8,177KQJ5000G?tO`K>RA1wUbN0TKH,-1*00",
err: "nmea: AIBBM invalid payload: fill bits",
},
{
name: "Too high number of fill bits",
raw: "!AIBBM,26,2,1,3,8,177KQJ5000G?tO`K>RA1wUbN0TKH,20*1e",
err: "nmea: AIBBM invalid payload: fill bits",
},
{
name: "Negative number of bits",
raw: "!AIBBM,26,2,1,3,8,,2*57",
err: "nmea: AIBBM invalid payload: num bits",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
m, err := Parse(tt.raw)
if tt.err != "" {
assert.Error(t, err)
assert.EqualError(t, err, tt.err)
} else {
assert.NoError(t, err)
bbm := m.(BBM)
bbm.BaseSentence = BaseSentence{}
assert.Equal(t, tt.msg, bbm)
}
})
}
}
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