Add mender installmode

Signed-off-by: Luis Gustavo S. Barreto <gustavo@ossystems.com.br>

installmodes/mender/mender.go

@@ -0,0 +1,56 @@
+/*
+ * UpdateHub
+ * Copyright (C) 2018
+ * O.S. Systems Sofware LTDA: contato@ossystems.com.br
+ *
+ * SPDX-License-Identifier:     GPL-2.0
+ */
+
+package mender
+
+import (
+	"github.com/spf13/afero"
+
+	"github.com/updatehub/updatehub/installmodes"
+	"github.com/updatehub/updatehub/metadata"
+)
+
+func init() {
+	installmodes.RegisterInstallMode(installmodes.InstallMode{
+		Name:              "mender",
+		CheckRequirements: func() error { return nil },
+		GetObject: func() interface{} {
+			return &MenderObject{}
+		},
+	})
+}
+
+// MenderObject encapsulates the "mender" handler data and functions
+type MenderObject struct {
+	metadata.ObjectMetadata
+	//	FileSystemBackend afero.Fs
+}
+
+// Setup implementation for the "mender" handler
+func (m *MenderObject) Setup() error {
+	return nil
+}
+
+// Install implementation for the "mender" handler
+func (m *MenderObject) Install(downloadDir string) error {
+	return nil
+}
+
+// Cleanup implementation for the "mender" handler
+func (m *MenderObject) Cleanup() error {
+	return nil
+}
+
+// GetTarget implementation for the "mender" handler
+func (m *MenderObject) GetTarget() string {
+	return ""
+}
+
+// SetupTarget implementation for the "mender" handler
+func (m *MenderObject) SetupTarget(target afero.File) {
+}

installmodes/mender/mender_test.go

@@ -0,0 +1,65 @@
+/*
+ * UpdateHub
+ * Copyright (C) 2017
+ * O.S. Systems Sofware LTDA: contato@ossystems.com.br
+ *
+ * SPDX-License-Identifier:     GPL-2.0
+ */
+
+package mender
+
+import (
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/updatehub/updatehub/installmodes"
+	"github.com/updatehub/updatehub/testsmocks/filemock"
+	"github.com/updatehub/updatehub/testsmocks/filesystemmock"
+)
+
+func TestMenderInit(t *testing.T) {
+	val, err := installmodes.GetObject("mender")
+	assert.NoError(t, err)
+
+	r1, ok := val.(*MenderObject)
+	if !ok {
+		t.Error("Failed to cast return value of \"installmodes.GetObject()\" to MenderObject")
+	}
+
+	r2 := &MenderObject{}
+
+	assert.Equal(t, r2, r1)
+}
+
+func TestMenderSetupWithSuccess(t *testing.T) {
+	r := MenderObject{}
+	err := r.Setup()
+	assert.NoError(t, err)
+}
+
+func TestMenderInstallWithSuccess(t *testing.T) {
+	r := MenderObject{}
+
+	err := r.Install("")
+
+	assert.NoError(t, err)
+}
+
+func TestMenderSetupTarget(t *testing.T) {
+	r := MenderObject{}
+
+	targetMock := &filemock.FileMock{}
+	fsbm := &filesystemmock.FileSystemBackendMock{}
+	fsbm.On("OpenFile", "/target", os.O_RDONLY, os.FileMode(0)).Return(targetMock, nil)
+
+	target, err := fsbm.OpenFile("/target", os.O_RDONLY, 0)
+	assert.NoError(t, err)
+
+	r.SetupTarget(target)
+}
+
+func TestMenderCleanupNil(t *testing.T) {
+	r := MenderObject{}
+	assert.Nil(t, r.Cleanup())
+}