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https://github.com/token2/snapd.git
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103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
// -*- Mode: Go; indent-tabs-mode: t -*-
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/*
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* Copyright (C) 2014-2019 Canonical Ltd
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 3 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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package boottest
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import (
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"strings"
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"github.com/snapcore/snapd/asserts"
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"github.com/snapcore/snapd/snap"
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)
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type mockDevice struct {
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bootSnap string
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mode string
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uc20 bool
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model *asserts.Model
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}
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// MockDevice implements boot.Device. It wraps a string like
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// <boot-snap-name>[@<mode>], no <boot-snap-name> means classic, empty
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// <mode> defaults to "run" for UC16/18. If mode is set HasModeenv
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// returns true for UC20 and an empty boot snap name panics.
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// It returns <boot-snap-name> for Base, Kernel and gadget, for more
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// control mock a DeviceContext.
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func MockDevice(s string) snap.Device {
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bootsnap, mode, uc20 := snapAndMode(s)
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if uc20 && bootsnap == "" {
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panic("MockDevice with no snap name and @mode is unsupported")
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}
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return &mockDevice{
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bootSnap: bootsnap,
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mode: mode,
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uc20: uc20,
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}
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}
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// MockUC20Device implements boot.Device and returns true for HasModeenv.
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// Arguments are mode (empty means "run"), and model.
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// If model is nil a default model is used (same as MakeMockUC20Model).
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func MockUC20Device(mode string, model *asserts.Model) snap.Device {
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if mode == "" {
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mode = "run"
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}
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if model == nil {
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model = MakeMockUC20Model()
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}
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return &mockDevice{
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bootSnap: model.Kernel(),
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mode: mode,
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uc20: true,
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model: model,
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}
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}
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func snapAndMode(str string) (snap, mode string, uc20 bool) {
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parts := strings.SplitN(string(str), "@", 2)
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if len(parts) == 1 || parts[1] == "" {
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return parts[0], "run", false
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}
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return parts[0], parts[1], true
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}
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func (d *mockDevice) Kernel() string { return d.bootSnap }
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func (d *mockDevice) Classic() bool { return d.bootSnap == "" }
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func (d *mockDevice) RunMode() bool { return d.mode == "run" }
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func (d *mockDevice) HasModeenv() bool { return d.uc20 }
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func (d *mockDevice) Base() string {
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if d.model != nil {
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return d.model.Base()
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}
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return d.bootSnap
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}
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func (d *mockDevice) Gadget() string {
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if d.model != nil {
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return d.model.Gadget()
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}
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return d.bootSnap
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}
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func (d *mockDevice) Model() *asserts.Model {
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if d.model == nil {
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panic("Device.Model called but MockUC20Device not used")
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}
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return d.model
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}
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