dissertation-2-code/mocks/packetconn.go
Jake Hillion 068b544b7d
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read deadline test method
2021-05-12 00:52:46 +01:00

70 lines
1.5 KiB
Go

package mocks
import (
"net"
"time"
)
type MockPerfectBiPacketConn struct {
directionA chan []byte
directionB chan []byte
}
func NewMockPerfectBiPacketConn(bufSize int) MockPerfectBiPacketConn {
return MockPerfectBiPacketConn{
directionA: make(chan []byte, bufSize),
directionB: make(chan []byte, bufSize),
}
}
func (bc MockPerfectBiPacketConn) SideA() MockPerfectPacketConn {
return MockPerfectPacketConn{inbound: bc.directionA, outbound: bc.directionB}
}
func (bc MockPerfectBiPacketConn) SideB() MockPerfectPacketConn {
return MockPerfectPacketConn{inbound: bc.directionB, outbound: bc.directionA}
}
type MockPerfectPacketConn struct {
inbound chan []byte
outbound chan []byte
}
func (c MockPerfectPacketConn) Write(b []byte) (int, error) {
c.outbound <- b
return len(b), nil
}
func (c MockPerfectPacketConn) WriteToUDP(b []byte, addr *net.UDPAddr) (int, error) {
c.outbound <- b
return len(b), nil
}
func (c MockPerfectPacketConn) LocalAddr() net.Addr {
return &net.UDPAddr{
IP: net.IPv4(127, 0, 0, 1),
Port: 1234,
}
}
func (c MockPerfectPacketConn) SetReadDeadline(time.Time) error {
return nil
}
func (c MockPerfectPacketConn) ReadFromUDP(b []byte) (int, *net.UDPAddr, error) {
p := <-c.inbound
return copy(b, p), &net.UDPAddr{
IP: net.IPv4(127, 0, 0, 1),
Port: 1234,
}, nil
}
func (c MockPerfectPacketConn) NonBlockingRead(p []byte) (n int, err error) {
select {
case b := <-c.inbound:
return copy(p, b), nil
default:
return 0, nil
}
}