opentofu/command/plan_test.go
Alisdair McDiarmid 68558ccd54 backend/local: Replace CLI with view instance
This commit extracts the remaining UI logic from the local backend,
and removes access to the direct CLI output. This is replaced with an
instance of a `views.Operation` interface, which codifies the current
requirements for the local backend to interact with the user.

The exception to this at present is interactivity: approving a plan
still depends on the `UIIn` field for the backend. This is out of scope
for this commit and can be revisited separately, at which time the
`UIOut` field can also be removed.

Changes in support of this:

- Some instances of direct error output have been replaced with
  diagnostics, most notably in the emergency state backup handler. This
  requires reformatting the error messages to allow the diagnostic
  renderer to line-wrap them;
- The "in-automation" logic has moved out of the backend and into the
  view implementation;
- The plan, apply, refresh, and import commands instantiate a view and
  set it on the `backend.Operation` struct, as these are the only code
  paths which call the `local.Operation()` method that requires it;
- The show command requires the plan rendering code which is now in the
  views package, so there is a stub implementation of a `views.Show`
  interface there.

Other refactoring work in support of migrating these commands to the
common views code structure will come in follow-up PRs, at which point
we will be able to remove the UI instances from the unit tests for those
commands.
2021-02-18 12:08:08 -05:00

1123 lines
29 KiB
Go

package command
import (
"bytes"
"io/ioutil"
"os"
"path"
"path/filepath"
"strings"
"sync"
"testing"
"time"
"github.com/davecgh/go-spew/spew"
"github.com/mitchellh/cli"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
backendinit "github.com/hashicorp/terraform/backend/init"
"github.com/hashicorp/terraform/configs/configschema"
"github.com/hashicorp/terraform/plans"
"github.com/hashicorp/terraform/providers"
"github.com/hashicorp/terraform/states"
"github.com/hashicorp/terraform/terraform"
)
func TestPlan(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestPlan_lockedState(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
unlock, err := testLockState(testDataDir, filepath.Join(td, DefaultStateFilename))
if err != nil {
t.Fatal(err)
}
defer unlock()
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code == 0 {
t.Fatal("expected error")
}
output := ui.ErrorWriter.String()
if !strings.Contains(output, "lock") {
t.Fatal("command output does not look like a lock error:", output)
}
}
func TestPlan_plan(t *testing.T) {
tmp, cwd := testCwd(t)
defer testFixCwd(t, tmp, cwd)
planPath := testPlanFileNoop(t)
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{planPath}
if code := c.Run(args); code != 1 {
t.Fatalf("wrong exit status %d; want 1\nstderr: %s", code, ui.ErrorWriter.String())
}
}
func TestPlan_destroy(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
originalState := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"bar"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
outPath := testTempFile(t)
statePath := testStateFile(t, originalState)
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-destroy",
"-out", outPath,
"-state", statePath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
plan := testReadPlan(t, outPath)
for _, rc := range plan.Changes.Resources {
if got, want := rc.Action, plans.Delete; got != want {
t.Fatalf("wrong action %s for %s; want %s\nplanned change: %s", got, rc.Addr, want, spew.Sdump(rc))
}
}
}
func TestPlan_noState(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify that refresh was called
if p.ReadResourceCalled {
t.Fatal("ReadResource should not be called")
}
// Verify that the provider was called with the existing state
actual := p.PlanResourceChangeRequest.PriorState
expected := cty.NullVal(p.GetProviderSchemaResponse.ResourceTypes["test_instance"].Block.ImpliedType())
if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state\ngot: %#v\nwant: %#v", actual, expected)
}
}
func TestPlan_outPath(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
outPath := filepath.Join(td, "test.plan")
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
p.PlanResourceChangeResponse = &providers.PlanResourceChangeResponse{
PlannedState: cty.NullVal(cty.EmptyObject),
}
args := []string{
"-out", outPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
testReadPlan(t, outPath) // will call t.Fatal itself if the file cannot be read
}
func TestPlan_outPathNoChange(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
originalState := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
// Aside from "id" (which is computed) the values here must
// exactly match the values in the "plan" test fixture in order
// to produce the empty plan we need for this test.
AttrsJSON: []byte(`{"id":"bar","ami":"bar","network_interface":[{"description":"Main network interface","device_index":"0"}]}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
statePath := testStateFile(t, originalState)
outPath := filepath.Join(td, "test.plan")
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-out", outPath,
"-state", statePath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
plan := testReadPlan(t, outPath)
if !plan.Changes.Empty() {
t.Fatalf("Expected empty plan to be written to plan file, got: %s", spew.Sdump(plan))
}
}
// When using "-out" with a backend, the plan should encode the backend config
func TestPlan_outBackend(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-out-backend"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
originalState := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"bar","ami":"bar"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
// Set up our backend state
dataState, srv := testBackendState(t, originalState, 200)
defer srv.Close()
testStateFileRemote(t, dataState)
outPath := "foo"
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {
Type: cty.String,
Computed: true,
},
"ami": {
Type: cty.String,
Optional: true,
},
},
},
},
},
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
ui := cli.NewMockUi()
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-out", outPath,
}
if code := c.Run(args); code != 0 {
t.Logf("stdout: %s", ui.OutputWriter.String())
t.Fatalf("plan command failed with exit code %d\n\n%s", code, ui.ErrorWriter.String())
}
plan := testReadPlan(t, outPath)
if !plan.Changes.Empty() {
t.Fatalf("Expected empty plan to be written to plan file, got: %s", spew.Sdump(plan))
}
if got, want := plan.Backend.Type, "http"; got != want {
t.Errorf("wrong backend type %q; want %q", got, want)
}
if got, want := plan.Backend.Workspace, "default"; got != want {
t.Errorf("wrong backend workspace %q; want %q", got, want)
}
{
httpBackend := backendinit.Backend("http")()
schema := httpBackend.ConfigSchema()
got, err := plan.Backend.Config.Decode(schema.ImpliedType())
if err != nil {
t.Fatalf("failed to decode backend config in plan: %s", err)
}
want, err := dataState.Backend.Config(schema)
if err != nil {
t.Fatalf("failed to decode cached config: %s", err)
}
if !want.RawEquals(got) {
t.Errorf("wrong backend config\ngot: %#v\nwant: %#v", got, want)
}
}
}
func TestPlan_refreshFalse(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-refresh=false",
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if p.ReadResourceCalled {
t.Fatal("ReadResource should not have been called")
}
}
func TestPlan_state(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
originalState := testState()
statePath := testStateFile(t, originalState)
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-state", statePath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify that the provider was called with the existing state
actual := p.PlanResourceChangeRequest.PriorState
expected := cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("bar"),
"ami": cty.NullVal(cty.String),
"network_interface": cty.NullVal(cty.List(cty.Object(map[string]cty.Type{
"device_index": cty.String,
"description": cty.String,
}))),
})
if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state\ngot: %#v\nwant: %#v", actual, expected)
}
}
func TestPlan_stateDefault(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Generate state and move it to the default path
originalState := testState()
statePath := testStateFile(t, originalState)
os.Rename(statePath, path.Join(td, "terraform.tfstate"))
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify that the provider was called with the existing state
actual := p.PlanResourceChangeRequest.PriorState
expected := cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("bar"),
"ami": cty.NullVal(cty.String),
"network_interface": cty.NullVal(cty.List(cty.Object(map[string]cty.Type{
"device_index": cty.String,
"description": cty.String,
}))),
})
if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state\ngot: %#v\nwant: %#v", actual, expected)
}
}
func TestPlan_validate(t *testing.T) {
// This is triggered by not asking for input so we have to set this to false
test = false
defer func() { test = true }()
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-invalid"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
},
},
},
},
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
actual := ui.ErrorWriter.String()
if want := "Error: Invalid count argument"; !strings.Contains(actual, want) {
t.Fatalf("unexpected error output\ngot:\n%s\n\nshould contain: %s", actual, want)
}
}
func TestPlan_vars(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-vars"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
actual := ""
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) (resp providers.PlanResourceChangeResponse) {
actual = req.ProposedNewState.GetAttr("value").AsString()
resp.PlannedState = req.ProposedNewState
return
}
args := []string{
"-var", "foo=bar",
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestPlan_varsUnset(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-vars"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// The plan command will prompt for interactive input of var.foo.
// We'll answer "bar" to that prompt, which should then allow this
// configuration to apply even though var.foo doesn't have a
// default value and there are no -var arguments on our command line.
// This will (helpfully) panic if more than one variable is requested during plan:
// https://github.com/hashicorp/terraform/issues/26027
close := testInteractiveInput(t, []string{"bar"})
defer close()
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
// This test adds a required argument to the test provider to validate
// processing of user input:
// https://github.com/hashicorp/terraform/issues/26035
func TestPlan_providerArgumentUnset(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// The plan command will prompt for interactive input of provider.test.region
defaultInputReader = bytes.NewBufferString("us-east-1\n")
p := planFixtureProvider()
// override the planFixtureProvider schema to include a required provider argument
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
Provider: providers.Schema{
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"region": {Type: cty.String, Required: true},
},
},
},
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"ami": {Type: cty.String, Optional: true, Computed: true},
},
BlockTypes: map[string]*configschema.NestedBlock{
"network_interface": {
Nesting: configschema.NestingList,
Block: configschema.Block{
Attributes: map[string]*configschema.Attribute{
"device_index": {Type: cty.String, Optional: true},
"description": {Type: cty.String, Optional: true},
},
},
},
},
},
},
},
}
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestPlan_varFile(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-vars"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
varFilePath := testTempFile(t)
if err := ioutil.WriteFile(varFilePath, []byte(planVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
actual := ""
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) (resp providers.PlanResourceChangeResponse) {
actual = req.ProposedNewState.GetAttr("value").AsString()
resp.PlannedState = req.ProposedNewState
return
}
args := []string{
"-var-file", varFilePath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestPlan_varFileDefault(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-vars"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
varFilePath := filepath.Join(td, "terraform.tfvars")
if err := ioutil.WriteFile(varFilePath, []byte(planVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
p := planVarsFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
actual := ""
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) (resp providers.PlanResourceChangeResponse) {
actual = req.ProposedNewState.GetAttr("value").AsString()
resp.PlannedState = req.ProposedNewState
return
}
args := []string{}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if actual != "bar" {
t.Fatal("didn't work")
}
}
func TestPlan_varFileWithDecls(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-vars"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
varFilePath := testTempFile(t)
if err := ioutil.WriteFile(varFilePath, []byte(planVarFileWithDecl), 0644); err != nil {
t.Fatalf("err: %s", err)
}
p := planVarsFixtureProvider()
ui := cli.NewMockUi()
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-var-file", varFilePath,
}
if code := c.Run(args); code == 0 {
t.Fatalf("succeeded; want failure\n\n%s", ui.OutputWriter.String())
}
msg := ui.ErrorWriter.String()
if got, want := msg, "Variable declaration in .tfvars file"; !strings.Contains(got, want) {
t.Fatalf("missing expected error message\nwant message containing %q\ngot:\n%s", want, got)
}
}
func TestPlan_detailedExitcode(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := planFixtureProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{"-detailed-exitcode"}
if code := c.Run(args); code != 2 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestPlan_detailedExitcode_emptyDiff(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan-emptydiff"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{"-detailed-exitcode"}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestPlan_shutdown(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("apply-shutdown"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
cancelled := make(chan struct{})
shutdownCh := make(chan struct{})
p := testProvider()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
ShutdownCh: shutdownCh,
},
}
p.StopFn = func() error {
close(cancelled)
return nil
}
var once sync.Once
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) (resp providers.PlanResourceChangeResponse) {
once.Do(func() {
shutdownCh <- struct{}{}
})
// Because of the internal lock in the MockProvider, we can't
// coordinate directly with the calling of Stop, and making the
// MockProvider concurrent is disruptive to a lot of existing tests.
// Wait here a moment to help make sure the main goroutine gets to the
// Stop call before we exit, or the plan may finish before it can be
// canceled.
time.Sleep(200 * time.Millisecond)
s := req.ProposedNewState.AsValueMap()
s["ami"] = cty.StringVal("bar")
resp.PlannedState = cty.ObjectVal(s)
return
}
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"ami": {Type: cty.String, Optional: true},
},
},
},
},
}
code := c.Run([]string{})
if code != 1 {
t.Errorf("wrong exit code %d; want 1\noutput:\n%s", code, ui.OutputWriter.String())
}
select {
case <-cancelled:
default:
t.Error("command not cancelled")
}
}
func TestPlan_init_required(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("plan"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
// Running plan without setting testingOverrides is similar to plan without init
Ui: ui,
View: view,
},
}
args := []string{}
if code := c.Run(args); code != 1 {
t.Fatalf("expected error, got success")
}
output := ui.ErrorWriter.String()
if !strings.Contains(output, `Plugin reinitialization required. Please run "terraform init".`) {
t.Fatal("wrong error message in output:", output)
}
}
// Config with multiple resources, targeting plan of a subset
func TestPlan_targeted(t *testing.T) {
td := tempDir(t)
testCopyDir(t, testFixturePath("apply-targeted"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := testProvider()
p.GetProviderSchemaResponse = &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Computed: true},
},
},
},
},
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
ui := new(cli.MockUi)
view, done := testView(t)
c := &PlanCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
View: view,
},
}
args := []string{
"-target", "test_instance.foo",
"-target", "test_instance.baz",
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if got, want := done(t).Stdout(), "3 to add, 0 to change, 0 to destroy"; !strings.Contains(got, want) {
t.Fatalf("bad change summary, want %q, got:\n%s", want, got)
}
}
// Diagnostics for invalid -target flags
func TestPlan_targetFlagsDiags(t *testing.T) {
testCases := map[string]string{
"test_instance.": "Dot must be followed by attribute name.",
"test_instance": "Resource specification must include a resource type and name.",
}
for target, wantDiag := range testCases {
t.Run(target, func(t *testing.T) {
td := testTempDir(t)
defer os.RemoveAll(td)
defer testChdir(t, td)()
ui := new(cli.MockUi)
view, _ := testView(t)
c := &PlanCommand{
Meta: Meta{
Ui: ui,
View: view,
},
}
args := []string{
"-target", target,
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
got := ui.ErrorWriter.String()
if !strings.Contains(got, target) {
t.Fatalf("bad error output, want %q, got:\n%s", target, got)
}
if !strings.Contains(got, wantDiag) {
t.Fatalf("bad error output, want %q, got:\n%s", wantDiag, got)
}
})
}
}
// planFixtureSchema returns a schema suitable for processing the
// configuration in testdata/plan . This schema should be
// assigned to a mock provider named "test".
func planFixtureSchema() *providers.GetProviderSchemaResponse {
return &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"ami": {Type: cty.String, Optional: true},
},
BlockTypes: map[string]*configschema.NestedBlock{
"network_interface": {
Nesting: configschema.NestingList,
Block: configschema.Block{
Attributes: map[string]*configschema.Attribute{
"device_index": {Type: cty.String, Optional: true},
"description": {Type: cty.String, Optional: true},
},
},
},
},
},
},
},
}
}
// planFixtureProvider returns a mock provider that is configured for basic
// operation with the configuration in testdata/plan. This mock has
// GetSchemaResponse and PlanResourceChangeFn populated, with the plan
// step just passing through the new object proposed by Terraform Core.
func planFixtureProvider() *terraform.MockProvider {
p := testProvider()
p.GetProviderSchemaResponse = planFixtureSchema()
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
return p
}
// planVarsFixtureSchema returns a schema suitable for processing the
// configuration in testdata/plan-vars . This schema should be
// assigned to a mock provider named "test".
func planVarsFixtureSchema() *providers.GetProviderSchemaResponse {
return &providers.GetProviderSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"value": {Type: cty.String, Optional: true},
},
},
},
},
}
}
// planVarsFixtureProvider returns a mock provider that is configured for basic
// operation with the configuration in testdata/plan-vars. This mock has
// GetSchemaResponse and PlanResourceChangeFn populated, with the plan
// step just passing through the new object proposed by Terraform Core.
func planVarsFixtureProvider() *terraform.MockProvider {
p := testProvider()
p.GetProviderSchemaResponse = planVarsFixtureSchema()
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
return p
}
const planVarFile = `
foo = "bar"
`
const planVarFileWithDecl = `
foo = "bar"
variable "nope" {
}
`