terraform/command/apply_destroy_test.go

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package command
import (
"bytes"
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"os"
"strings"
"testing"
"github.com/davecgh/go-spew/spew"
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"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/providers"
"github.com/hashicorp/terraform/states"
"github.com/hashicorp/terraform/states/statefile"
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)
func TestApply_destroy(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(`{"id":"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 := testProvider()
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p.GetSchemaResponse = &providers.GetSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
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Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Computed: true},
"ami": {Type: cty.String, Optional: true},
},
},
},
},
}
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ui := new(cli.MockUi)
c := &ApplyCommand{
Destroy: true,
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,
testFixturePath("apply"),
}
if code := c.Run(args); code != 0 {
t.Log(ui.OutputWriter.String())
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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)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
stateFile, err := statefile.Read(f)
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if err != nil {
t.Fatalf("err: %s", err)
}
if stateFile.State == nil {
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t.Fatal("state should not be nil")
}
actualStr := strings.TrimSpace(stateFile.State.String())
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expectedStr := strings.TrimSpace(testApplyDestroyStr)
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
// Should have a backup file
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f, err = os.Open(statePath + DefaultBackupExtension)
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if err != nil {
t.Fatalf("err: %s", err)
}
backupStateFile, err := statefile.Read(f)
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f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actualStr = strings.TrimSpace(backupStateFile.State.String())
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expectedStr = strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
}
func TestApply_destroyApproveNo(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("apply"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create some existing state
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,
},
)
})
statePath := testStateFile(t, originalState)
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// Answer approval request with "no"
defaultInputReader = bytes.NewBufferString("no\n")
defaultInputWriter = new(bytes.Buffer)
p := applyFixtureProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Destroy: true,
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
if got, want := ui.OutputWriter.String(), "Destroy cancelled"; !strings.Contains(got, want) {
t.Fatalf("expected output to include %q, but was:\n%s", want, got)
}
state := testStateRead(t, statePath)
if state == nil {
t.Fatal("state should not be nil")
}
actualStr := strings.TrimSpace(state.String())
expectedStr := strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
}
}
func TestApply_destroyApproveYes(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
testCopyDir(t, testFixturePath("apply"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
statePath := testTempFile(t)
p := applyFixtureProvider()
// Disable test mode so input would be asked
test = false
defer func() { test = true }()
// Answer approval request with "yes"
defaultInputReader = bytes.NewBufferString("yes\n")
defaultInputWriter = new(bytes.Buffer)
ui := new(cli.MockUi)
c := &ApplyCommand{
Destroy: true,
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
args := []string{
"-state", statePath,
}
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")
}
actualStr := strings.TrimSpace(state.String())
expectedStr := strings.TrimSpace(testApplyDestroyStr)
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\n%s", actualStr, expectedStr)
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}
}
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func TestApply_destroyLockedState(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(`{"id":"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)
unlock, err := testLockState(testDataDir, statePath)
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if err != nil {
t.Fatal(err)
}
defer unlock()
p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Destroy: true,
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,
testFixturePath("apply"),
}
if code := c.Run(args); code == 0 {
t.Fatal("expected error")
}
output := ui.ErrorWriter.String()
if !strings.Contains(output, "lock") {
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t.Fatal("command output does not look like a lock error:", output)
}
}
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func TestApply_destroyPlan(t *testing.T) {
planPath := testPlanFileNoop(t)
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p := testProvider()
ui := new(cli.MockUi)
c := &ApplyCommand{
Destroy: true,
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
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},
}
// Run the apply command pointing to our existing state
args := []string{
planPath,
}
if code := c.Run(args); code != 1 {
t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String())
}
}
func TestApply_destroyTargeted(t *testing.T) {
originalState := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_instance",
Name: "foo",
}.Instance(addrs.IntKey(0)).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"i-ab123"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_load_balancer",
Name: "foo",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"i-abc123"}`),
Dependencies: []addrs.ConfigResource{mustResourceAddr("test_instance.foo")},
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("test"),
Module: addrs.RootModule,
},
)
})
statePath := testStateFile(t, originalState)
p := testProvider()
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p.GetSchemaResponse = &providers.GetSchemaResponse{
ResourceTypes: map[string]providers.Schema{
"test_instance": {
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Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Computed: true},
},
},
},
"test_load_balancer": {
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Block: &configschema.Block{
Attributes: map[string]*configschema.Attribute{
"id": {Type: cty.String, Computed: true},
"instances": {Type: cty.List(cty.String), Optional: true},
},
},
},
},
}
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p.PlanResourceChangeFn = func(req providers.PlanResourceChangeRequest) providers.PlanResourceChangeResponse {
return providers.PlanResourceChangeResponse{
PlannedState: req.ProposedNewState,
}
}
ui := new(cli.MockUi)
c := &ApplyCommand{
Destroy: true,
Meta: Meta{
testingOverrides: metaOverridesForProvider(p),
Ui: ui,
},
}
// Run the apply command pointing to our existing state
args := []string{
"-auto-approve",
"-target", "test_instance.foo",
"-state", statePath,
testFixturePath("apply-destroy-targeted"),
}
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)
}
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
defer f.Close()
stateFile, err := statefile.Read(f)
if err != nil {
t.Fatalf("err: %s", err)
}
if stateFile == nil || stateFile.State == nil {
t.Fatal("state should not be nil")
}
spew.Config.DisableMethods = true
if !stateFile.State.Empty() {
t.Fatalf("unexpected final state\ngot: %s\nwant: empty state", spew.Sdump(stateFile.State))
}
// Should have a backup file
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f, err = os.Open(statePath + DefaultBackupExtension)
if err != nil {
t.Fatalf("err: %s", err)
}
backupStateFile, err := statefile.Read(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
actualStr := strings.TrimSpace(backupStateFile.State.String())
expectedStr := strings.TrimSpace(originalState.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\nactual:\n%s\n\nexpected:\nb%s", actualStr, expectedStr)
}
}
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const testApplyDestroyStr = `
<no state>
`