/
forwarder_test.go
103 lines (83 loc) · 2.58 KB
/
forwarder_test.go
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package cerebrum
import (
"errors"
"testing"
"time"
log "github.com/mgutz/logxi/v1"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/mock"
)
func TestForward_NoLeader(t *testing.T) {
applier := &MockRaftApplier{leader: ""}
applier.On("Leader").Return(ErrNoLeader)
fwdr := &forwarder{
raft: applier,
logger: &log.NullLogger{},
}
var buf []byte
err := fwdr.Forward(buf)
applier.AssertCalled(t, "Leader")
assert.Equal(t, ErrNoLeader, err, "Forward should return ErrNoLeader")
}
func TestForward_DialError(t *testing.T) {
applier := &MockRaftApplier{leader: "leader"}
applier.On("Leader").Return("leader")
dialError := errors.New("dial error")
dialer := &MockDialer{err: dialError}
dialer.On("Dial", connForward, "leader", 3*time.Second).Return(nil, dialError)
fwdr := &forwarder{
raft: applier,
dialer: dialer,
logger: &log.NullLogger{},
}
var buf []byte
err := fwdr.Forward(buf)
applier.AssertCalled(t, "Leader")
dialer.AssertCalled(t, "Dial", connForward, "leader", 3*time.Second)
assert.Equal(t, dialError, err, "Forward should return dial error")
}
func TestForward_WriteError(t *testing.T) {
applier := &MockRaftApplier{leader: "leader"}
applier.On("Leader").Return("leader")
var buf []byte
writeError := errors.New("write failed")
conn := &MockConn{err: writeError}
conn.On("Write", buf).Return(0, writeError)
conn.On("Close").Return()
dialer := &MockDialer{err: nil, conn: conn}
dialer.On("Dial", connForward, "leader", 3*time.Second).Return(conn, nil)
fwdr := &forwarder{
raft: applier,
dialer: dialer,
logger: &log.NullLogger{},
}
err := fwdr.Forward(buf)
applier.AssertCalled(t, "Leader")
dialer.AssertCalled(t, "Dial", connForward, "leader", 3*time.Second)
conn.AssertCalled(t, "Write", buf)
assert.Equal(t, writeError, err, "Forward should return write error")
}
func TestForward_Write(t *testing.T) {
applier := &MockRaftApplier{leader: "leader"}
applier.On("Leader").Return("leader")
var buf []byte
conn := &MockConn{}
conn.On("Write", buf).Return(0, nil)
conn.On("Close").Return()
dialer := &MockDialer{err: nil, conn: conn}
dialer.On("Dial", connForward, "leader", 3*time.Second).Return(conn, nil)
fwdr := NewForwarder(applier, dialer, &log.NullLogger{})
err := fwdr.Forward(buf)
applier.AssertCalled(t, "Leader")
dialer.AssertCalled(t, "Dial", connForward, "leader", 3*time.Second)
conn.AssertCalled(t, "Write", buf)
assert.Equal(t, nil, err, "Forward should return nil")
}
type MockForwarder struct {
mock.Mock
err error
}
func (m *MockForwarder) Forward(buf []byte) error {
m.Called(buf)
return m.err
}