mirror of
https://github.com/edgelesssys/constellation.git
synced 2024-09-20 08:15:56 +00:00
374 lines
8.9 KiB
Go
374 lines
8.9 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package upgrade
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import (
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"bytes"
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"context"
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"io"
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"path/filepath"
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"testing"
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"github.com/edgelesssys/constellation/v2/cli/internal/terraform"
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"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
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"github.com/edgelesssys/constellation/v2/internal/constants"
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"github.com/edgelesssys/constellation/v2/internal/file"
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"github.com/spf13/afero"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestCheckTerraformMigrations(t *testing.T) {
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upgrader := func() *TerraformUpgrader {
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u, err := NewTerraformUpgrader(&stubTerraformClient{}, bytes.NewBuffer(nil))
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require.NoError(t, err)
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return u
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}
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workspace := func(existingFiles []string) file.Handler {
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fs := afero.NewMemMapFs()
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for _, f := range existingFiles {
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require.NoError(t, afero.WriteFile(fs, f, []byte{}, 0o644))
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}
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return file.NewHandler(fs)
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}
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testCases := map[string]struct {
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upgradeID string
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workspace file.Handler
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wantErr bool
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}{
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"success": {
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upgradeID: "1234",
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workspace: workspace(nil),
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},
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"migration output file already exists": {
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upgradeID: "1234",
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workspace: workspace([]string{constants.TerraformMigrationOutputFile}),
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wantErr: true,
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},
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"terraform backup dir already exists": {
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upgradeID: "1234",
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workspace: workspace([]string{filepath.Join(constants.UpgradeDir, "1234", constants.TerraformUpgradeBackupDir)}),
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wantErr: true,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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u := upgrader()
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err := u.CheckTerraformMigrations(tc.workspace, tc.upgradeID)
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if tc.wantErr {
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require.Error(t, err)
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return
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}
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require.NoError(t, err)
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})
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}
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}
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func TestPlanTerraformMigrations(t *testing.T) {
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upgrader := func(tf tfClient) *TerraformUpgrader {
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u, err := NewTerraformUpgrader(tf, bytes.NewBuffer(nil))
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require.NoError(t, err)
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return u
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}
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testCases := map[string]struct {
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upgradeID string
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tf tfClient
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want bool
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wantErr bool
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}{
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"success no diff": {
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upgradeID: "1234",
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tf: &stubTerraformClient{},
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},
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"success diff": {
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upgradeID: "1234",
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tf: &stubTerraformClient{
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hasDiff: true,
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},
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want: true,
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},
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"prepare workspace error": {
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upgradeID: "1234",
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tf: &stubTerraformClient{
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prepareWorkspaceErr: assert.AnError,
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},
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wantErr: true,
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},
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"plan error": {
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tf: &stubTerraformClient{
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planErr: assert.AnError,
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},
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wantErr: true,
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},
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"show plan error no diff": {
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upgradeID: "1234",
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tf: &stubTerraformClient{
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showErr: assert.AnError,
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},
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},
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"show plan error diff": {
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upgradeID: "1234",
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tf: &stubTerraformClient{
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showErr: assert.AnError,
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hasDiff: true,
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},
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wantErr: true,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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require := require.New(t)
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u := upgrader(tc.tf)
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opts := TerraformUpgradeOptions{
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LogLevel: terraform.LogLevelDebug,
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CSP: cloudprovider.Unknown,
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Vars: &terraform.QEMUVariables{},
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}
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diff, err := u.PlanTerraformMigrations(context.Background(), opts, tc.upgradeID)
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if tc.wantErr {
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require.Error(err)
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} else {
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require.NoError(err)
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require.Equal(tc.want, diff)
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}
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})
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}
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}
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func TestApplyTerraformMigrations(t *testing.T) {
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upgrader := func(tf tfClient) *TerraformUpgrader {
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u, err := NewTerraformUpgrader(tf, bytes.NewBuffer(nil))
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require.NoError(t, err)
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return u
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}
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fileHandler := func(upgradeID string, existingFiles ...string) file.Handler {
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fh := file.NewHandler(afero.NewMemMapFs())
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require.NoError(t,
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fh.Write(
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filepath.Join(constants.UpgradeDir, upgradeID, constants.TerraformUpgradeWorkingDir, "someFile"),
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[]byte("some content"),
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))
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for _, f := range existingFiles {
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require.NoError(t, fh.Write(f, []byte("some content")))
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}
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return fh
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}
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testCases := map[string]struct {
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upgradeID string
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tf tfClient
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policyPatcher stubPolicyPatcher
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fs file.Handler
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outputFileName string
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wantErr bool
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}{
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"success": {
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upgradeID: "1234",
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tf: &stubTerraformClient{},
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fs: fileHandler("1234"),
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policyPatcher: stubPolicyPatcher{},
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outputFileName: "test.json",
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},
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"create cluster error": {
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upgradeID: "1234",
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tf: &stubTerraformClient{
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CreateClusterErr: assert.AnError,
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},
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fs: fileHandler("1234"),
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policyPatcher: stubPolicyPatcher{},
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outputFileName: "test.json",
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wantErr: true,
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},
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"patch error": {
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upgradeID: "1234",
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tf: &stubTerraformClient{},
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fs: fileHandler("1234"),
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policyPatcher: stubPolicyPatcher{
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patchErr: assert.AnError,
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},
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wantErr: true,
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},
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"empty file name": {
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upgradeID: "1234",
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tf: &stubTerraformClient{},
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fs: fileHandler("1234"),
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policyPatcher: stubPolicyPatcher{},
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outputFileName: "",
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wantErr: true,
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},
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"file already exists": {
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upgradeID: "1234",
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tf: &stubTerraformClient{},
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fs: fileHandler("1234", "test.json"),
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policyPatcher: stubPolicyPatcher{},
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outputFileName: "test.json",
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wantErr: true,
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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require := require.New(t)
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u := upgrader(tc.tf)
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opts := TerraformUpgradeOptions{
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LogLevel: terraform.LogLevelDebug,
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CSP: cloudprovider.Unknown,
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Vars: &terraform.QEMUVariables{},
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OutputFile: tc.outputFileName,
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}
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err := u.ApplyTerraformMigrations(context.Background(), tc.fs, opts, tc.upgradeID)
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if tc.wantErr {
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require.Error(err)
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} else {
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require.NoError(err)
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}
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})
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}
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}
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func TestCleanUpTerraformMigrations(t *testing.T) {
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upgrader := func() *TerraformUpgrader {
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u, err := NewTerraformUpgrader(&stubTerraformClient{}, bytes.NewBuffer(nil))
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require.NoError(t, err)
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return u
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}
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workspace := func(existingFiles []string) file.Handler {
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fs := afero.NewMemMapFs()
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for _, f := range existingFiles {
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require.NoError(t, afero.WriteFile(fs, f, []byte{}, 0o644))
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}
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return file.NewHandler(fs)
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}
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testCases := map[string]struct {
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upgradeID string
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workspaceFiles []string
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wantFiles []string
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wantErr bool
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}{
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"no files": {
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upgradeID: "1234",
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workspaceFiles: nil,
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wantFiles: []string{},
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},
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"clean backup dir": {
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upgradeID: "1234",
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workspaceFiles: []string{
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filepath.Join(constants.UpgradeDir, "1234", constants.TerraformUpgradeBackupDir),
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},
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wantFiles: []string{},
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},
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"clean working dir": {
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upgradeID: "1234",
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workspaceFiles: []string{
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filepath.Join(constants.UpgradeDir, "1234", constants.TerraformUpgradeWorkingDir),
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},
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wantFiles: []string{},
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},
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"clean all": {
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upgradeID: "1234",
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workspaceFiles: []string{
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filepath.Join(constants.UpgradeDir, "1234", constants.TerraformUpgradeBackupDir),
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filepath.Join(constants.UpgradeDir, "1234", constants.TerraformUpgradeWorkingDir),
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filepath.Join(constants.UpgradeDir, "1234", "abc"),
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},
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wantFiles: []string{},
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},
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"leave other files": {
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upgradeID: "1234",
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workspaceFiles: []string{
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filepath.Join(constants.UpgradeDir, "1234", constants.TerraformUpgradeBackupDir),
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filepath.Join(constants.UpgradeDir, "other"),
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},
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wantFiles: []string{
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filepath.Join(constants.UpgradeDir, "other"),
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},
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},
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}
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for name, tc := range testCases {
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t.Run(name, func(t *testing.T) {
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require := require.New(t)
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workspace := workspace(tc.workspaceFiles)
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u := upgrader()
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err := u.CleanUpTerraformMigrations(workspace, tc.upgradeID)
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if tc.wantErr {
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require.Error(err)
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return
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}
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require.NoError(err)
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for _, haveFile := range tc.workspaceFiles {
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for _, wantFile := range tc.wantFiles {
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if haveFile == wantFile {
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_, err := workspace.Stat(wantFile)
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require.NoError(err, "file %s should exist", wantFile)
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} else {
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_, err := workspace.Stat(haveFile)
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require.Error(err, "file %s should not exist", haveFile)
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}
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}
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}
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})
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}
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}
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type stubTerraformClient struct {
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hasDiff bool
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prepareWorkspaceErr error
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showErr error
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planErr error
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CreateClusterErr error
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}
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func (u *stubTerraformClient) PrepareUpgradeWorkspace(string, string, string, string, terraform.Variables) error {
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return u.prepareWorkspaceErr
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}
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func (u *stubTerraformClient) ShowPlan(context.Context, terraform.LogLevel, string, io.Writer) error {
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return u.showErr
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}
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func (u *stubTerraformClient) Plan(context.Context, terraform.LogLevel, string) (bool, error) {
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return u.hasDiff, u.planErr
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}
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func (u *stubTerraformClient) CreateCluster(context.Context, terraform.LogLevel) (terraform.CreateOutput, error) {
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return terraform.CreateOutput{}, u.CreateClusterErr
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}
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type stubPolicyPatcher struct {
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patchErr error
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}
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func (p *stubPolicyPatcher) PatchPolicy(context.Context, string) error {
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return p.patchErr
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}
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