asteris-llc/converge

// Copyright © 2016 Asteris, LLC
//
// 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.

// +build linux

package unit

import (
    "fmt"
    "math/rand"

    "github.com/coreos/go-systemd/dbus"
    "github.com/stretchr/testify/mock"
)

// DbusMock mocks the actual dbus connection
type DbusMock struct {
    mock.Mock
    startResp   string
    stopResp    string
    restartResp string
    reloadResp  string
}

// ListUnits mocks ListUnits
func (m *DbusMock) ListUnits() ([]dbus.UnitStatus, error) {
    args := m.Called()
    return args.Get(0).([]dbus.UnitStatus), args.Error(1)
}

// ListUnits mocks ListUnitsByNames
func (m *DbusMock) ListUnitsByNames(names []string) ([]dbus.UnitStatus, error) {
    args := m.Called(names)
    return args.Get(0).([]dbus.UnitStatus), args.Error(1)
}

// GetUnitProperties mocks GetUnitProperties
func (m *DbusMock) GetUnitProperties(unit string) (map[string]interface{}, error) {
    args := m.Called(unit)
    return args.Get(0).(map[string]interface{}), args.Error(1)
}

// GetUnitTypeProperties mocks GetUnitTypeProperties
func (m *DbusMock) GetUnitTypeProperties(unit, unitType string) (map[string]interface{}, error) {
    args := m.Called(unit, unitType)
    return args.Get(0).(map[string]interface{}), args.Error(1)
}

// Close Closes
func (m *DbusMock) Close() {
    m.Called()
    return
}

func (m *DbusMock) StartUnit(name string, mode string, ch chan<- string) (int, error) {
    args := m.Called(name, mode, ch)
    if m.startResp != "" && ch != nil {
        go func() {
            ch <- m.startResp
        }()
    }
    return args.Int(0), args.Error(1)
}

func (m *DbusMock) StopUnit(name string, mode string, ch chan<- string) (int, error) {
    args := m.Called(name, mode, ch)
    if m.stopResp != "" && ch != nil {
        go func() {
            ch <- m.stopResp
        }()
    }
    return args.Int(0), args.Error(1)
}

func (m *DbusMock) RestartUnit(name string, mode string, ch chan<- string) (int, error) {
    args := m.Called(name, mode, ch)
    if m.restartResp != "" && ch != nil {
        go func() {
            ch <- m.restartResp
        }()
    }
    return args.Int(0), args.Error(1)
}

func (m *DbusMock) ReloadUnit(name string, mode string, ch chan<- string) (int, error) {
    args := m.Called(name, mode, ch)
    if m.reloadResp != "" && ch != nil {
        go func() {
            ch <- m.reloadResp
        }()
    }
    return args.Int(0), args.Error(1)
}

func (m *DbusMock) KillUnit(name string, signal int32) {
    m.Called(name, signal)
    return
}

type rets struct {
    Val interface{}
    Err error
}

type unitInfo struct {
    Unit      dbus.UnitStatus
    Props     map[string]interface{}
    TypeProps map[string]interface{}
}

func randomUnitStatus() dbus.UnitStatus {
    loadState := loadStates[rand.Intn(len(loadStates))]
    activeState := activeStates[rand.Intn(len(activeStates))]
    suffix := validTypes[rand.Intn(len(validTypes))]
    var nameBytes []byte
    for i := 0; i < 64; i++ {
        nameBytes = append(nameBytes, alphabet[rand.Intn(len(alphabet))])
    }
    name := fmt.Sprintf("%s.%s", string(nameBytes), suffix)
    return dbus.UnitStatus{
        Name:        name,
        Description: name,
        LoadState:   loadState,
        ActiveState: activeState,
    }
}

func randomUnit(typeVal UnitType) *Unit {
    st := randomUnitStatus()

    name := fmt.Sprintf("%s.%s", st.Name, typeVal.Suffix())

    u := &Unit{
        Properties:  Properties{},
        Name:        name,
        Description: name,
        ActiveState: st.ActiveState,
        LoadState:   st.LoadState,
        Type:        typeVal,
    }

    switch typeVal {
    case UnitTypeService:
        u.ServiceProperties = &ServiceTypeProperties{}
    case UnitTypeSocket:
        u.SocketProperties = &SocketTypeProperties{}
    case UnitTypeDevice:
        u.DeviceProperties = &DeviceTypeProperties{}
    case UnitTypeMount:
        u.MountProperties = &MountTypeProperties{}
    case UnitTypeAutoMount:
        u.AutomountProperties = &AutomountTypeProperties{}
    case UnitTypeSwap:
        u.SwapProperties = &SwapTypeProperties{}
    case UnitTypePath:
        u.PathProperties = &PathTypeProperties{}
    case UnitTypeTimer:
        u.TimerProperties = &TimerTypeProperties{}
    case UnitTypeSlice:
        u.SliceProperties = &SliceTypeProperties{}
    case UnitTypeScope:
        u.ScopeProperties = &ScopeTypeProperties{}
    }
    return u
}