mirror of
https://github.com/opentofu/opentofu.git
synced 2025-01-13 09:32:24 -06:00
298 lines
8.1 KiB
Go
298 lines
8.1 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package local
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import (
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"fmt"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
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"github.com/opentofu/opentofu/internal/states"
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"github.com/opentofu/opentofu/internal/states/statemgr"
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"github.com/opentofu/opentofu/internal/tofu"
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)
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func TestStateHook_impl(t *testing.T) {
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var _ tofu.Hook = new(StateHook)
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}
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func TestStateHook(t *testing.T) {
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is := statemgr.NewTransientInMemory(nil)
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var hook tofu.Hook = &StateHook{StateMgr: is}
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s := statemgr.TestFullInitialState()
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action, err := hook.PostStateUpdate(s)
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if err != nil {
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t.Fatalf("err: %s", err)
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}
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if action != tofu.HookActionContinue {
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t.Fatalf("bad: %v", action)
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}
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if !is.State().Equal(s) {
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t.Fatalf("bad state: %#v", is.State())
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}
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}
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func TestStateHookStopping(t *testing.T) {
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is := &testPersistentState{}
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hook := &StateHook{
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StateMgr: is,
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Schemas: &tofu.Schemas{},
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PersistInterval: 4 * time.Hour,
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intermediatePersist: IntermediateStatePersistInfo{
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LastPersist: time.Now(),
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},
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}
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s := statemgr.TestFullInitialState()
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action, err := hook.PostStateUpdate(s)
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if err != nil {
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t.Fatalf("unexpected error from PostStateUpdate: %s", err)
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}
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if got, want := action, tofu.HookActionContinue; got != want {
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t.Fatalf("wrong hookaction %#v; want %#v", got, want)
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}
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if is.Written == nil || !is.Written.Equal(s) {
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t.Fatalf("mismatching state written")
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}
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if is.Persisted != nil {
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t.Fatalf("persisted too soon")
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}
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// We'll now force lastPersist to be long enough ago that persisting
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// should be due on the next call.
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hook.intermediatePersist.LastPersist = time.Now().Add(-5 * time.Hour)
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hook.PostStateUpdate(s)
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if is.Written == nil || !is.Written.Equal(s) {
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t.Fatalf("mismatching state written")
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}
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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hook.PostStateUpdate(s)
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if is.Written == nil || !is.Written.Equal(s) {
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t.Fatalf("mismatching state written")
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}
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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gotLog := is.CallLog
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wantLog := []string{
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// Initial call before we reset lastPersist
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"WriteState",
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// Write and then persist after we reset lastPersist
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"WriteState",
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"PersistState",
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// Final call when persisting wasn't due yet.
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"WriteState",
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}
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if diff := cmp.Diff(wantLog, gotLog); diff != "" {
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t.Fatalf("wrong call log so far\n%s", diff)
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}
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// We'll reset the log now before we try seeing what happens after
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// we use "Stopped".
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is.CallLog = is.CallLog[:0]
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is.Persisted = nil
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hook.Stopping()
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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is.Persisted = nil
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hook.PostStateUpdate(s)
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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is.Persisted = nil
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hook.PostStateUpdate(s)
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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gotLog = is.CallLog
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wantLog = []string{
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// "Stopping" immediately persisted
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"PersistState",
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// PostStateUpdate then writes and persists on every call,
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// on the assumption that we're now bailing out after
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// being cancelled and trying to save as much state as we can.
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"WriteState",
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"PersistState",
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"WriteState",
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"PersistState",
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}
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if diff := cmp.Diff(wantLog, gotLog); diff != "" {
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t.Fatalf("wrong call log once in stopping mode\n%s", diff)
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}
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}
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func TestStateHookCustomPersistRule(t *testing.T) {
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is := &testPersistentStateThatRefusesToPersist{}
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hook := &StateHook{
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StateMgr: is,
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Schemas: &tofu.Schemas{},
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PersistInterval: 4 * time.Hour,
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intermediatePersist: IntermediateStatePersistInfo{
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LastPersist: time.Now(),
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},
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}
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s := statemgr.TestFullInitialState()
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action, err := hook.PostStateUpdate(s)
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if err != nil {
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t.Fatalf("unexpected error from PostStateUpdate: %s", err)
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}
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if got, want := action, tofu.HookActionContinue; got != want {
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t.Fatalf("wrong hookaction %#v; want %#v", got, want)
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}
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if is.Written == nil || !is.Written.Equal(s) {
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t.Fatalf("mismatching state written")
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}
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if is.Persisted != nil {
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t.Fatalf("persisted too soon")
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}
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// We'll now force lastPersist to be long enough ago that persisting
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// should be due on the next call.
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hook.intermediatePersist.LastPersist = time.Now().Add(-5 * time.Hour)
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hook.PostStateUpdate(s)
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if is.Written == nil || !is.Written.Equal(s) {
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t.Fatalf("mismatching state written")
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}
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if is.Persisted != nil {
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t.Fatalf("has a persisted state, but shouldn't")
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}
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hook.PostStateUpdate(s)
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if is.Written == nil || !is.Written.Equal(s) {
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t.Fatalf("mismatching state written")
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}
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if is.Persisted != nil {
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t.Fatalf("has a persisted state, but shouldn't")
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}
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gotLog := is.CallLog
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wantLog := []string{
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// Initial call before we reset lastPersist
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"WriteState",
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"ShouldPersistIntermediateState",
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// Previous call should return false, preventing a "PersistState" call
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// Write and then decline to persist
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"WriteState",
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"ShouldPersistIntermediateState",
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// Previous call should return false, preventing a "PersistState" call
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// Final call before we start "stopping".
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"WriteState",
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"ShouldPersistIntermediateState",
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// Previous call should return false, preventing a "PersistState" call
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}
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if diff := cmp.Diff(wantLog, gotLog); diff != "" {
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t.Fatalf("wrong call log so far\n%s", diff)
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}
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// We'll reset the log now before we try seeing what happens after
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// we use "Stopped".
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is.CallLog = is.CallLog[:0]
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is.Persisted = nil
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hook.Stopping()
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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is.Persisted = nil
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hook.PostStateUpdate(s)
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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is.Persisted = nil
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hook.PostStateUpdate(s)
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if is.Persisted == nil || !is.Persisted.Equal(s) {
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t.Fatalf("mismatching state persisted")
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}
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gotLog = is.CallLog
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wantLog = []string{
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"ShouldPersistIntermediateState",
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// Previous call should return true, allowing the following "PersistState" call
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"PersistState",
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"WriteState",
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"ShouldPersistIntermediateState",
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// Previous call should return true, allowing the following "PersistState" call
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"PersistState",
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"WriteState",
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"ShouldPersistIntermediateState",
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// Previous call should return true, allowing the following "PersistState" call
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"PersistState",
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}
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if diff := cmp.Diff(wantLog, gotLog); diff != "" {
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t.Fatalf("wrong call log once in stopping mode\n%s", diff)
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}
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}
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type testPersistentState struct {
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CallLog []string
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Written *states.State
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Persisted *states.State
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}
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var _ statemgr.Writer = (*testPersistentState)(nil)
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var _ statemgr.Persister = (*testPersistentState)(nil)
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func (sm *testPersistentState) WriteState(state *states.State) error {
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sm.CallLog = append(sm.CallLog, "WriteState")
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sm.Written = state
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return nil
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}
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func (sm *testPersistentState) PersistState(schemas *tofu.Schemas) error {
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if schemas == nil {
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return fmt.Errorf("no schemas")
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}
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sm.CallLog = append(sm.CallLog, "PersistState")
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sm.Persisted = sm.Written
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return nil
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}
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type testPersistentStateThatRefusesToPersist struct {
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CallLog []string
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Written *states.State
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Persisted *states.State
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}
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var _ statemgr.Writer = (*testPersistentStateThatRefusesToPersist)(nil)
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var _ statemgr.Persister = (*testPersistentStateThatRefusesToPersist)(nil)
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var _ IntermediateStateConditionalPersister = (*testPersistentStateThatRefusesToPersist)(nil)
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func (sm *testPersistentStateThatRefusesToPersist) WriteState(state *states.State) error {
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sm.CallLog = append(sm.CallLog, "WriteState")
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sm.Written = state
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return nil
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}
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func (sm *testPersistentStateThatRefusesToPersist) PersistState(schemas *tofu.Schemas) error {
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if schemas == nil {
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return fmt.Errorf("no schemas")
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}
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sm.CallLog = append(sm.CallLog, "PersistState")
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sm.Persisted = sm.Written
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return nil
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}
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// ShouldPersistIntermediateState implements IntermediateStateConditionalPersister
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func (sm *testPersistentStateThatRefusesToPersist) ShouldPersistIntermediateState(info *IntermediateStatePersistInfo) bool {
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sm.CallLog = append(sm.CallLog, "ShouldPersistIntermediateState")
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return info.ForcePersist
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}
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