gotelem/can/can_test.go
2023-04-14 15:42:16 -05:00

59 lines
1.2 KiB
Go

package can
import (
"testing"
"golang.org/x/sys/unix"
)
func TestMakeFilter(t *testing.T) {
t.Run("non-invert", func(t *testing.T) {
filter := MakeFilter(0x123, 0x11, false)
if filter.Id != 0x123 {
t.Errorf("expected %d, got %d", 0x123, filter.Id)
}
if filter.Mask != 0x11 {
t.Errorf("expected %d, got %d", 0x11, filter.Mask)
}
})
t.Run("invert", func(t *testing.T) {
filter := MakeFilter(0x123, 0x11, true)
if filter.Id != 0x123|unix.CAN_INV_FILTER {
t.Errorf("expected %d, got %d", 0x123|unix.CAN_INV_FILTER, filter.Id)
}
if filter.Mask != 0x11 {
t.Errorf("expected %d, got %d", 0x11, filter.Mask)
}
})
}
func TestCanSocket(t *testing.T) {
t.Run("test construction and destruction", func(t *testing.T) {
sock, err := NewCanSocket("vcan0")
if err != nil {
t.Errorf("could not make socket: %v", err)
}
if sock.fd == 0 {
t.Errorf("socket was not made: expected non-zero, got %d", sock.fd)
}
if err := sock.Close(); err != nil {
t.Errorf("could not close socket")
}
})
t.Run("test name", func(t *testing.T) {
sock, _ := NewCanSocket("vcan0")
if sock.Name() != "vcan0" {
t.Errorf("incorrect interface name: got %s, expected %s", sock.Name(), "vcan0")
}
})
}