[SEBA-820] Preventing the ONU from going to dhcp_started if we don't have the DHCP flow

Change-Id: Ia9c136830a6781fa69d7ead5406c3e354ad35a06
diff --git a/internal/bbsim/devices/onu_test_helpers.go b/internal/bbsim/devices/onu_test_helpers.go
new file mode 100644
index 0000000..1044913
--- /dev/null
+++ b/internal/bbsim/devices/onu_test_helpers.go
@@ -0,0 +1,118 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+
+ * http://www.apache.org/licenses/LICENSE-2.0
+
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package devices
+
+import (
+	"context"
+	"errors"
+	"github.com/opencord/voltha-protos/go/openolt"
+	"github.com/opencord/voltha-protos/go/tech_profile"
+	"google.golang.org/grpc"
+	"net"
+)
+
+type FlowAddSpy struct {
+	CallCount int
+	Calls     map[int]*openolt.Flow
+}
+
+type mockClient struct {
+	FlowAddSpy
+	fail bool
+}
+
+func (s *mockClient) DisableOlt(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) ReenableOlt(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) ActivateOnu(ctx context.Context, in *openolt.Onu, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) DeactivateOnu(ctx context.Context, in *openolt.Onu, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) DeleteOnu(ctx context.Context, in *openolt.Onu, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) OmciMsgOut(ctx context.Context, in *openolt.OmciMsg, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) OnuPacketOut(ctx context.Context, in *openolt.OnuPacket, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) UplinkPacketOut(ctx context.Context, in *openolt.UplinkPacket, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) FlowAdd(ctx context.Context, in *openolt.Flow, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	s.FlowAddSpy.CallCount++
+	if s.fail {
+		return nil, errors.New("fake-error")
+	}
+	s.FlowAddSpy.Calls[s.FlowAddSpy.CallCount] = in
+	return &openolt.Empty{}, nil
+}
+func (s *mockClient) FlowRemove(ctx context.Context, in *openolt.Flow, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) HeartbeatCheck(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (*openolt.Heartbeat, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) EnablePonIf(ctx context.Context, in *openolt.Interface, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) DisablePonIf(ctx context.Context, in *openolt.Interface, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) GetDeviceInfo(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (*openolt.DeviceInfo, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) Reboot(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) CollectStatistics(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) CreateTrafficSchedulers(ctx context.Context, in *tech_profile.TrafficSchedulers, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) RemoveTrafficSchedulers(ctx context.Context, in *tech_profile.TrafficSchedulers, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) CreateTrafficQueues(ctx context.Context, in *tech_profile.TrafficQueues, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) RemoveTrafficQueues(ctx context.Context, in *tech_profile.TrafficQueues, opts ...grpc.CallOption) (*openolt.Empty, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+func (s *mockClient) EnableIndication(ctx context.Context, in *openolt.Empty, opts ...grpc.CallOption) (openolt.Openolt_EnableIndicationClient, error) {
+	return nil, errors.New("unimplemented-in-mock-client")
+}
+
+func createMockOnu(id uint32, ponPortId uint32, sTag int, cTag int) Onu {
+	o := Onu{
+		ID:        id,
+		PonPortID: ponPortId,
+		STag:      sTag,
+		CTag:      cTag,
+		HwAddress: net.HardwareAddr{0x2e, 0x60, 0x70, 0x13, byte(ponPortId), byte(id)},
+		PortNo:    0,
+	}
+	o.SerialNumber = o.NewSN(0, ponPortId, o.ID)
+	return o
+}