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// -*- Mode: Go; indent-tabs-mode: t -*-
/*
* Copyright (C) 2014-2019 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package boottest
import (
"strings"
"github.com/snapcore/snapd/asserts"
"github.com/snapcore/snapd/boot"
)
type mockDevice struct {
bootSnap string
mode string
uc20 bool
model *asserts.Model
}
// MockDevice implements boot.Device. It wraps a string like
// <boot-snap-name>[@<mode>], no <boot-snap-name> means classic, empty
// <mode> defaults to "run" for UC16/18. If mode is set HasModeenv
// returns true for UC20 and an empty boot snap name panics.
// It returns <boot-snap-name> for both Base and Kernel, for more
// control mock a DeviceContext.
func MockDevice(s string) boot.Device {
bootsnap, mode, uc20 := snapAndMode(s)
if uc20 && bootsnap == "" {
panic("MockDevice with no snap name and @mode is unsupported")
}
return &mockDevice{
bootSnap: bootsnap,
mode: mode,
uc20: uc20,
}
}
// MockUC20Device implements boot.Device and returns true for HasModeenv.
// Arguments are mode (empty means "run"), and model.
// If model is nil a default model is used (same as MakeMockUC20Model).
func MockUC20Device(mode string, model *asserts.Model) boot.Device {
if mode == "" {
mode = "run"
}
if model == nil {
model = MakeMockUC20Model()
}
return &mockDevice{
bootSnap: model.Kernel(),
mode: mode,
uc20: true,
model: model,
}
}
func snapAndMode(str string) (snap, mode string, uc20 bool) {
parts := strings.SplitN(string(str), "@", 2)
if len(parts) == 1 || parts[1] == "" {
return parts[0], "run", false
}
return parts[0], parts[1], true
}
func (d *mockDevice) Kernel() string { return d.bootSnap }
func (d *mockDevice) Classic() bool { return d.bootSnap == "" }
func (d *mockDevice) RunMode() bool { return d.mode == "run" }
func (d *mockDevice) HasModeenv() bool { return d.uc20 }
func (d *mockDevice) Base() string {
if d.model != nil {
return d.model.Base()
}
return d.bootSnap
}
func (d *mockDevice) Model() *asserts.Model {
if d.model == nil {
panic("Device.Model called but MockUC20Device not used")
}
return d.model
}
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