terraform/command/apply_test.go

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package command
import (
"bytes"
"fmt"
"io/ioutil"
"net"
"net/http"
"net/url"
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"os"
"path/filepath"
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"strings"
"sync"
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"testing"
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"time"
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"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/mitchellh/cli"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
"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/states/statemgr"
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"github.com/hashicorp/terraform/terraform"
)
func TestApply(t *testing.T) {
statePath := testTempFile(t)
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p := applyFixtureProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
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}
args := []string{
"-state", statePath,
"-auto-approve",
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testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
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if state == nil {
t.Fatal("state should not be nil")
}
}
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// test apply with locked state
func TestApply_lockedState(t *testing.T) {
statePath := testTempFile(t)
unlock, err := testLockState(testDataDir, statePath)
if err != nil {
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t.Fatal(err)
}
defer unlock()
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p := applyFixtureProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
args := []string{
"-state", statePath,
"-auto-approve",
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testFixturePath("apply"),
}
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)
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}
}
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// test apply with locked state, waiting for unlock
func TestApply_lockedStateWait(t *testing.T) {
statePath := testTempFile(t)
unlock, err := testLockState(testDataDir, statePath)
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if err != nil {
t.Fatal(err)
}
// unlock during apply
go func() {
time.Sleep(500 * time.Millisecond)
unlock()
}()
p := applyFixtureProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
// wait 4s just in case the lock process doesn't release in under a second,
// and we want our context to be alive for a second retry at the 3s mark.
args := []string{
"-state", statePath,
"-lock-timeout", "4s",
"-auto-approve",
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testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("lock should have succeeded in less than 3s: %s", ui.ErrorWriter)
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}
}
// high water mark counter
type hwm struct {
sync.Mutex
val int
max int
}
func (t *hwm) Inc() {
t.Lock()
defer t.Unlock()
t.val++
if t.val > t.max {
t.max = t.val
}
}
func (t *hwm) Dec() {
t.Lock()
defer t.Unlock()
t.val--
}
func (t *hwm) Max() int {
t.Lock()
defer t.Unlock()
return t.max
}
func TestApply_parallelism(t *testing.T) {
statePath := testTempFile(t)
par := 4
// This blocks all the apply functions. We close it when we exit so
// they end quickly after this test finishes.
block := make(chan struct{})
// signal how many goroutines have started
started := make(chan int, 100)
runCount := &hwm{}
// Since our mock provider has its own mutex preventing concurrent calls
// to ApplyResourceChange, we need to use a number of separate providers
// here. They will all have the same mock implementation function assigned
// but crucially they will each have their own mutex.
providerFactories := map[addrs.Provider]providers.Factory{}
for i := 0; i < 10; i++ {
name := fmt.Sprintf("test%d", i)
provider := &terraform.MockProvider{}
provider.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
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name + "_instance": {},
},
}
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provider.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
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provider.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) providers.ApplyResourceChangeResponse {
// Increment so we're counting parallelism
started <- 1
runCount.Inc()
defer runCount.Dec()
// Block here to stage up our max number of parallel instances
<-block
return providers.ApplyResourceChangeResponse{
NewState: cty.EmptyObjectVal,
}
}
providerFactories[addrs.NewDefaultProvider(name)] = providers.FactoryFixed(provider)
}
testingOverrides := &testingOverrides{
Providers: providerFactories,
}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: testingOverrides,
Ui: ui,
},
}
args := []string{
"-state", statePath,
"-auto-approve",
fmt.Sprintf("-parallelism=%d", par),
testFixturePath("parallelism"),
}
// Run in a goroutine. We can get any errors from the ui.OutputWriter
doneCh := make(chan int, 1)
go func() {
doneCh <- c.Run(args)
}()
timeout := time.After(5 * time.Second)
// ensure things are running
for i := 0; i < par; i++ {
select {
case <-timeout:
t.Fatal("timeout waiting for all goroutines to start")
case <-started:
}
}
// a little extra sleep, since we can't ensure all goroutines from the walk have
// really started
time.Sleep(100 * time.Millisecond)
close(block)
select {
case res := <-doneCh:
if res != 0 {
t.Fatal(ui.OutputWriter.String())
}
case <-timeout:
t.Fatal("timeout waiting from Run()")
}
// The total in flight should equal the parallelism
if runCount.Max() != par {
t.Fatalf("Expected parallelism: %d, got: %d", par, runCount.Max())
}
}
func TestApply_configInvalid(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", testTempFile(t),
"-auto-approve",
testFixturePath("apply-config-invalid"),
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
}
func TestApply_defaultState(t *testing.T) {
td := testTempDir(t)
statePath := filepath.Join(td, DefaultStateFilename)
// Change to the temporary directory
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(filepath.Dir(statePath)); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
// create an existing state file
localState := statemgr.NewFilesystem(statePath)
if err := localState.WriteState(states.NewState()); err != nil {
t.Fatal(err)
}
args := []string{
"-auto-approve",
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_error(t *testing.T) {
statePath := testTempFile(t)
p := testProvider()
ui := cli.NewMockUi()
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
var lock sync.Mutex
errored := false
p.ApplyFn = func(info *terraform.InstanceInfo, s *terraform.InstanceState, d *terraform.InstanceDiff) (*terraform.InstanceState, error) {
lock.Lock()
defer lock.Unlock()
if !errored {
errored = true
return nil, fmt.Errorf("error")
}
newState := &terraform.InstanceState{
ID: "foo",
Attributes: map[string]string{},
}
newState.Attributes["id"] = newState.ID
if ad, ok := d.Attributes["ami"]; ok {
newState.Attributes["ami"] = ad.New
}
if ad, ok := d.Attributes["error"]; ok {
newState.Attributes["error"] = ad.New
}
return newState, nil
}
p.DiffFn = func(info *terraform.InstanceInfo, s *terraform.InstanceState, rc *terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
ret := &terraform.InstanceDiff{
Attributes: map[string]*terraform.ResourceAttrDiff{},
}
if new, ok := rc.Get("ami"); ok {
ret.Attributes["ami"] = &terraform.ResourceAttrDiff{
New: new.(string),
}
}
if new, ok := rc.Get("error"); ok {
ret.Attributes["error"] = &terraform.ResourceAttrDiff{
New: fmt.Sprintf("%t", new.(bool)),
}
}
return ret, nil
}
p.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Optional: true, Computed: true},
"ami": {Type: cty.String, Optional: true},
"error": {Type: cty.Bool, Optional: true},
},
},
},
}
args := []string{
"-state", statePath,
"-auto-approve",
testFixturePath("apply-error"),
}
if ui.ErrorWriter != nil {
t.Logf("stdout:\n%s", ui.OutputWriter.String())
t.Logf("stderr:\n%s", ui.ErrorWriter.String())
}
if code := c.Run(args); code != 1 {
t.Fatalf("wrong exit code %d; want 1", code)
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
if state == nil {
t.Fatal("state should not be nil")
}
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if len(state.RootModule().Resources) == 0 {
t.Fatal("no resources in state")
}
}
func TestApply_input(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// The configuration for this test includes a declaration of variable
// "foo" with no default, and we don't set it on the command line below,
// so the apply command will produce an interactive prompt for the
// value of var.foo. We'll answer "foo" here, and we expect the output
// value "result" to echo that back to us below.
defaultInputReader = bytes.NewBufferString("foo\n")
defaultInputWriter = new(bytes.Buffer)
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
"-auto-approve",
testFixturePath("apply-input"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
expected := strings.TrimSpace(`
<no state>
Outputs:
result = foo
`)
testStateOutput(t, statePath, expected)
}
// When only a partial set of the variables are set, Terraform
// should still ask for the unset ones by default (with -input=true)
func TestApply_inputPartial(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// Set some default reader/writers for the inputs
defaultInputReader = bytes.NewBufferString("one\ntwo\n")
defaultInputWriter = new(bytes.Buffer)
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
"-auto-approve",
"-var", "foo=foovalue",
testFixturePath("apply-input-partial"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
expected := strings.TrimSpace(`
<no state>
Outputs:
bar = one
foo = foovalue
`)
testStateOutput(t, statePath, expected)
}
func TestApply_noArgs(t *testing.T) {
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(testFixturePath("apply")); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
statePath := testTempFile(t)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
"-auto-approve",
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_plan(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// Set some default reader/writers for the inputs
defaultInputReader = new(bytes.Buffer)
defaultInputWriter = new(bytes.Buffer)
planPath := applyFixturePlanFile(t)
statePath := testTempFile(t)
p := applyFixtureProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
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}
args := []string{
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"-state-out", statePath,
planPath,
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}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_plan_backup(t *testing.T) {
planPath := applyFixturePlanFile(t)
statePath := testTempFile(t)
backupPath := testTempFile(t)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
// create a state file that needs to be backed up
err := statemgr.NewFilesystem(statePath).WriteState(states.NewState())
if err != nil {
t.Fatal(err)
}
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args := []string{
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"-state", statePath,
"-backup", backupPath,
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Should have a backup file
testStateRead(t, backupPath)
}
func TestApply_plan_noBackup(t *testing.T) {
planPath := applyFixturePlanFile(t)
statePath := testTempFile(t)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
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"-state-out", statePath,
"-backup", "-",
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Ensure there is no backup
_, err := os.Stat(statePath + DefaultBackupExtension)
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
// Ensure there is no literal "-"
_, err = os.Stat("-")
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
}
func TestApply_plan_remoteState(t *testing.T) {
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
tmp, cwd := testCwd(t)
defer testFixCwd(t, tmp, cwd)
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remoteStatePath := filepath.Join(tmp, DefaultDataDir, DefaultStateFilename)
if err := os.MkdirAll(filepath.Dir(remoteStatePath), 0755); err != nil {
t.Fatalf("err: %s", err)
}
// Set some default reader/writers for the inputs
defaultInputReader = new(bytes.Buffer)
defaultInputWriter = new(bytes.Buffer)
// Create a remote state
state := testState()
_, srv := testRemoteState(t, state, 200)
defer srv.Close()
_, snap := testModuleWithSnapshot(t, "apply")
backendConfig := cty.ObjectVal(map[string]cty.Value{
"address": cty.StringVal(srv.URL),
"update_method": cty.NullVal(cty.String),
"lock_address": cty.NullVal(cty.String),
"unlock_address": cty.NullVal(cty.String),
"lock_method": cty.NullVal(cty.String),
"unlock_method": cty.NullVal(cty.String),
"username": cty.NullVal(cty.String),
"password": cty.NullVal(cty.String),
"skip_cert_verification": cty.NullVal(cty.Bool),
"retry_max": cty.NullVal(cty.String),
"retry_wait_min": cty.NullVal(cty.String),
"retry_wait_max": cty.NullVal(cty.String),
})
backendConfigRaw, err := plans.NewDynamicValue(backendConfig, backendConfig.Type())
if err != nil {
t.Fatal(err)
}
planPath := testPlanFile(t, snap, state, &plans.Plan{
Backend: plans.Backend{
Type: "http",
Config: backendConfigRaw,
},
Changes: plans.NewChanges(),
})
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// State file should be not be installed
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if _, err := os.Stat(filepath.Join(tmp, DefaultStateFilename)); err == nil {
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data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatalf("State path should not exist: %s", string(data))
}
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// Check that there is no remote state config
if src, err := ioutil.ReadFile(remoteStatePath); err == nil {
t.Fatalf("has %s file; should not\n%s", remoteStatePath, src)
}
}
func TestApply_planWithVarFile(t *testing.T) {
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars")
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
planPath := applyFixturePlanFile(t)
statePath := testTempFile(t)
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
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"-state-out", statePath,
planPath,
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
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}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_planVars(t *testing.T) {
planPath := applyFixturePlanFile(t)
statePath := testTempFile(t)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
"-var", "foo=bar",
planPath,
}
if code := c.Run(args); code == 0 {
t.Fatal("should've failed")
}
}
// we should be able to apply a plan file with no other file dependencies
func TestApply_planNoModuleFiles(t *testing.T) {
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// temporary data directory which we can remove between commands
td := testTempDir(t)
defer os.RemoveAll(td)
defer testChdir(t, td)()
p := applyFixtureProvider()
planPath := applyFixturePlanFile(t)
apply := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: new(cli.MockUi),
},
}
args := []string{
planPath,
}
apply.Run(args)
if p.PrepareProviderConfigCalled {
t.Fatal("Prepare provider config should not be called with a plan")
}
}
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func TestApply_refresh(t *testing.T) {
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(`{"ami":"bar"}`),
Status: states.ObjectReady,
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},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
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statePath := testStateFile(t, originalState)
p := applyFixtureProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
args := []string{
"-state", statePath,
"-auto-approve",
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testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if !p.ReadResourceCalled {
t.Fatal("should call ReadResource")
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}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
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if state == nil {
t.Fatal("state should not be nil")
}
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// Should have a backup file
backupState := testStateRead(t, statePath+DefaultBackupExtension)
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actualStr := strings.TrimSpace(backupState.String())
expectedStr := strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
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}
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}
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func TestApply_shutdown(t *testing.T) {
cancelled := make(chan struct{})
shutdownCh := make(chan struct{})
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statePath := testTempFile(t)
p := testProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
ShutdownCh: shutdownCh,
},
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}
p.StopFn = func() error {
close(cancelled)
return nil
}
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p.DiffFn = func(
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*terraform.InstanceInfo,
*terraform.InstanceState,
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*terraform.ResourceConfig) (*terraform.InstanceDiff, error) {
return &terraform.InstanceDiff{
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Attributes: map[string]*terraform.ResourceAttrDiff{
"ami": &terraform.ResourceAttrDiff{
New: "bar",
},
},
}, nil
}
var once sync.Once
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p.ApplyFn = func(
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*terraform.InstanceInfo,
*terraform.InstanceState,
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*terraform.InstanceDiff) (*terraform.InstanceState, error) {
// only cancel once
once.Do(func() {
shutdownCh <- struct{}{}
})
// Because of the internal lock in the MockProvider, we can't
// coordiante 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)
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return &terraform.InstanceState{
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ID: "foo",
Attributes: map[string]string{
"ami": "2",
},
}, nil
}
p.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
"ami": {Type: cty.String, Optional: true},
},
},
},
}
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args := []string{
"-state", statePath,
"-auto-approve",
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testFixturePath("apply-shutdown"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
select {
case <-cancelled:
default:
t.Fatal("command not cancelled")
}
state := testStateRead(t, statePath)
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if state == nil {
t.Fatal("state should not be nil")
}
}
func TestApply_state(t *testing.T) {
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{
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AttrsJSON: []byte(`{"ami":"foo"}`),
Status: states.ObjectReady,
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},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
statePath := testStateFile(t, originalState)
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p := applyFixtureProvider()
p.PlanResourceChangeResponse = providers.PlanResourceChangeResponse{
PlannedState: cty.ObjectVal(map[string]cty.Value{
"ami": cty.StringVal("bar"),
}),
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}
p.ApplyResourceChangeResponse = providers.ApplyResourceChangeResponse{
NewState: cty.ObjectVal(map[string]cty.Value{
"ami": cty.StringVal("bar"),
}),
}
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
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}
// Run the apply command pointing to our existing state
args := []string{
"-state", statePath,
"-auto-approve",
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testFixturePath("apply"),
}
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.NullVal(cty.String),
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"ami": cty.StringVal("foo"),
})
if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state during plan\ngot: %#v\nwant: %#v", actual, expected)
}
actual = p.ApplyResourceChangeRequest.PriorState
expected = cty.ObjectVal(map[string]cty.Value{
"id": cty.NullVal(cty.String),
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"ami": cty.StringVal("foo"),
})
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if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state during apply\ngot: %#v\nwant: %#v", actual, expected)
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}
// Verify a new state exists
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
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if state == nil {
t.Fatal("state should not be nil")
}
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backupState := testStateRead(t, statePath+DefaultBackupExtension)
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actualStr := strings.TrimSpace(backupState.String())
expectedStr := strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
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}
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}
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func TestApply_stateNoExist(t *testing.T) {
p := applyFixtureProvider()
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ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
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}
args := []string{
"idontexist.tfstate",
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testFixturePath("apply"),
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
}
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func TestApply_sensitiveOutput(t *testing.T) {
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
statePath := testTempFile(t)
args := []string{
"-state", statePath,
"-auto-approve",
testFixturePath("apply-sensitive-output"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: \n%s", ui.OutputWriter.String())
}
output := ui.OutputWriter.String()
if !strings.Contains(output, "notsensitive = \"Hello world\"") {
t.Fatalf("bad: output should contain 'notsensitive' output\n%s", output)
}
if !strings.Contains(output, "sensitive = <sensitive>") {
t.Fatalf("bad: output should contain 'sensitive' output\n%s", output)
}
}
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func TestApply_vars(t *testing.T) {
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
actual := ""
p.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
"value": {Type: cty.String, Optional: true},
},
},
},
}
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p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) providers.ApplyResourceChangeResponse {
return providers.ApplyResourceChangeResponse{
NewState: req.PlannedState,
}
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
actual = req.ProposedNewState.GetAttr("value").AsString()
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
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}
}
args := []string{
"-auto-approve",
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"-var", "foo=bar",
"-state", statePath,
testFixturePath("apply-vars"),
}
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")
}
}
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func TestApply_varFile(t *testing.T) {
varFilePath := testTempFile(t)
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
actual := ""
p.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
"value": {Type: cty.String, Optional: true},
},
},
},
}
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p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) providers.ApplyResourceChangeResponse {
return providers.ApplyResourceChangeResponse{
NewState: req.PlannedState,
}
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
actual = req.ProposedNewState.GetAttr("value").AsString()
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
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}
}
args := []string{
"-auto-approve",
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"-var-file", varFilePath,
"-state", statePath,
testFixturePath("apply-vars"),
}
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 TestApply_varFileDefault(t *testing.T) {
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars")
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFile), 0644); err != nil {
t.Fatalf("err: %s", err)
}
statePath := testTempFile(t)
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
actual := ""
p.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
"value": {Type: cty.String, Optional: true},
},
},
},
}
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p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) providers.ApplyResourceChangeResponse {
return providers.ApplyResourceChangeResponse{
NewState: req.PlannedState,
}
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
actual = req.ProposedNewState.GetAttr("value").AsString()
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
args := []string{
"-auto-approve",
"-state", statePath,
testFixturePath("apply-vars"),
}
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 TestApply_varFileDefaultJSON(t *testing.T) {
varFileDir := testTempDir(t)
varFilePath := filepath.Join(varFileDir, "terraform.tfvars.json")
if err := ioutil.WriteFile(varFilePath, []byte(applyVarFileJSON), 0644); err != nil {
t.Fatalf("err: %s", err)
}
statePath := testTempFile(t)
cwd, err := os.Getwd()
if err != nil {
t.Fatalf("err: %s", err)
}
if err := os.Chdir(varFileDir); err != nil {
t.Fatalf("err: %s", err)
}
defer os.Chdir(cwd)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
actual := ""
p.GetSchemaReturn = &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
"value": {Type: cty.String, Optional: true},
},
},
},
}
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p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) providers.ApplyResourceChangeResponse {
return providers.ApplyResourceChangeResponse{
NewState: req.PlannedState,
}
}
p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
actual = req.ProposedNewState.GetAttr("value").AsString()
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
args := []string{
"-auto-approve",
"-state", statePath,
testFixturePath("apply-vars"),
}
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")
}
}
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func TestApply_backup(t *testing.T) {
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("{\n \"id\": \"bar\"\n }"),
Status: states.ObjectReady,
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},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
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statePath := testStateFile(t, originalState)
backupPath := testTempFile(t)
p := applyFixtureProvider()
p.PlanResourceChangeResponse = providers.PlanResourceChangeResponse{
PlannedState: cty.ObjectVal(map[string]cty.Value{
"ami": cty.StringVal("bar"),
}),
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}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
// Run the apply command pointing to our existing state
args := []string{
"-auto-approve",
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"-state", statePath,
"-backup", backupPath,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
// Verify a new state exists
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
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if state == nil {
t.Fatal("state should not be nil")
}
backupState := testStateRead(t, backupPath)
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actual := backupState.RootModule().Resources["test_instance.foo"]
expected := originalState.RootModule().Resources["test_instance.foo"]
if !cmp.Equal(actual, expected, cmpopts.EquateEmpty()) {
t.Fatalf(
"wrong aws_instance.foo state\n%s",
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cmp.Diff(expected, actual, cmp.Transformer("bytesAsString", func(b []byte) string {
return string(b)
})),
)
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}
}
func TestApply_disableBackup(t *testing.T) {
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originalState := testState()
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statePath := testStateFile(t, originalState)
p := applyFixtureProvider()
p.PlanResourceChangeResponse = providers.PlanResourceChangeResponse{
PlannedState: cty.ObjectVal(map[string]cty.Value{
"ami": cty.StringVal("bar"),
}),
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}
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
// Run the apply command pointing to our existing state
args := []string{
"-auto-approve",
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"-state", statePath,
"-backup", "-",
testFixturePath("apply"),
}
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),
})
if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state during plan\ngot: %#v\nwant: %#v", actual, expected)
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}
actual = p.ApplyResourceChangeRequest.PriorState
expected = cty.ObjectVal(map[string]cty.Value{
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"id": cty.StringVal("bar"),
"ami": cty.NullVal(cty.String),
})
if !expected.RawEquals(actual) {
t.Fatalf("wrong prior state during apply\ngot: %#v\nwant: %#v", actual, expected)
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}
// Verify a new state exists
if _, err := os.Stat(statePath); err != nil {
t.Fatalf("err: %s", err)
}
state := testStateRead(t, statePath)
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if state == nil {
t.Fatal("state should not be nil")
}
// Ensure there is no backup
_, err := os.Stat(statePath + DefaultBackupExtension)
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if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
// Ensure there is no literal "-"
_, err = os.Stat("-")
if err == nil || !os.IsNotExist(err) {
t.Fatalf("backup should not exist")
}
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}
// Test that the Terraform env is passed through
func TestApply_terraformEnv(t *testing.T) {
statePath := testTempFile(t)
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-auto-approve",
"-state", statePath,
testFixturePath("apply-terraform-env"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
expected := strings.TrimSpace(`
<no state>
Outputs:
output = default
`)
testStateOutput(t, statePath, expected)
}
// Test that the Terraform env is passed through
func TestApply_terraformEnvNonDefault(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create new env
{
ui := new(cli.MockUi)
newCmd := &WorkspaceNewCommand{}
newCmd.Meta = Meta{Ui: ui}
if code := newCmd.Run([]string{"test"}); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
}
// Switch to it
{
args := []string{"test"}
ui := new(cli.MockUi)
selCmd := &WorkspaceSelectCommand{}
selCmd.Meta = Meta{Ui: ui}
if code := selCmd.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter)
}
}
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-auto-approve",
testFixturePath("apply-terraform-env"),
}
if code := c.Run(args); code != 0 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
statePath := filepath.Join("terraform.tfstate.d", "test", "terraform.tfstate")
expected := strings.TrimSpace(`
<no state>
Outputs:
output = test
`)
testStateOutput(t, statePath, expected)
}
func testHttpServer(t *testing.T) net.Listener {
ln, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatalf("err: %s", err)
}
mux := http.NewServeMux()
mux.HandleFunc("/header", testHttpHandlerHeader)
var server http.Server
server.Handler = mux
go server.Serve(ln)
return ln
}
func testHttpHandlerHeader(w http.ResponseWriter, r *http.Request) {
var url url.URL
url.Scheme = "file"
url.Path = filepath.ToSlash(testFixturePath("init"))
w.Header().Add("X-Terraform-Get", url.String())
w.WriteHeader(200)
}
// applyFixtureSchema returns a schema suitable for processing the
// configuration in testdata/apply . This schema should be
// assigned to a mock provider named "test".
func applyFixtureSchema() *terraform.ProviderSchema {
return &terraform.ProviderSchema{
ResourceTypes: map[string]*configschema.Block{
"test_instance": {
Attributes: map[string]*configschema.Attribute{
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"id": {Type: cty.String, Optional: true, Computed: true},
"ami": {Type: cty.String, Optional: true},
},
},
},
}
}
// applyFixtureProvider returns a mock provider that is configured for basic
// operation with the configuration in testdata/apply. This mock has
// GetSchemaReturn, PlanResourceChangeFn, and ApplyResourceChangeFn populated,
// with the plan/apply steps just passing through the data determined by
// Terraform Core.
func applyFixtureProvider() *terraform.MockProvider {
p := testProvider()
p.GetSchemaReturn = applyFixtureSchema()
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p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
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p.ApplyResourceChangeFn = func(req providers.ApplyResourceChangeRequest) providers.ApplyResourceChangeResponse {
return providers.ApplyResourceChangeResponse{
NewState: cty.UnknownAsNull(req.PlannedState),
}
}
return p
}
// applyFixturePlanFile creates a plan file at a temporary location containing
// a single change to create the test_instance.foo that is included in the
// "apply" test fixture, returning the location of that plan file.
func applyFixturePlanFile(t *testing.T) string {
_, snap := testModuleWithSnapshot(t, "apply")
plannedVal := cty.ObjectVal(map[string]cty.Value{
"id": cty.UnknownVal(cty.String),
"ami": cty.StringVal("bar"),
})
priorValRaw, err := plans.NewDynamicValue(cty.NullVal(plannedVal.Type()), plannedVal.Type())
if err != nil {
t.Fatal(err)
}
plannedValRaw, err := plans.NewDynamicValue(plannedVal, plannedVal.Type())
if err != nil {
t.Fatal(err)
}
plan := testPlan(t)
plan.Changes.SyncWrapper().AppendResourceInstanceChange(&plans.ResourceInstanceChangeSrc{
Addr: addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
ProviderAddr: addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
ChangeSrc: plans.ChangeSrc{
Action: plans.Create,
Before: priorValRaw,
After: plannedValRaw,
},
})
return testPlanFile(
t,
snap,
states.NewState(),
plan,
)
}
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const applyVarFile = `
foo = "bar"
`
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const applyVarFileJSON = `
{ "foo": "bar" }
`
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const testApplyDisableBackupStr = `
ID = bar
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Tainted = false
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`
const testApplyDisableBackupStateStr = `
ID = bar
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Tainted = false
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`
const testApplyStateStr = `
ID = bar
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Tainted = false
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`
const testApplyStateDiffStr = `
ID = bar
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Tainted = false
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`