terraform/command/state_replace_provider_test.go

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package command
import (
"bytes"
"path/filepath"
"strings"
"testing"
"github.com/mitchellh/cli"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/states"
)
func TestStateReplaceProvider(t *testing.T) {
state := states.BuildState(func(s *states.SyncState) {
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "aws_instance",
Name: "alpha",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"alpha","foo":"value","bar":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("aws"),
Module: addrs.RootModule,
},
)
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "aws_instance",
Name: "beta",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"beta","foo":"value","bar":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewDefaultProvider("aws"),
Module: addrs.RootModule,
},
)
s.SetResourceInstanceCurrent(
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "azurerm_virtual_machine",
Name: "gamma",
}.Instance(addrs.NoKey).Absolute(addrs.RootModuleInstance),
&states.ResourceInstanceObjectSrc{
AttrsJSON: []byte(`{"id":"gamma","baz":"value"}`),
Status: states.ObjectReady,
},
addrs.AbsProviderConfig{
Provider: addrs.NewLegacyProvider("azurerm"),
Module: addrs.RootModule,
},
)
})
t.Run("happy path", func(t *testing.T) {
statePath := testStateFile(t, state)
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
inputBuf := &bytes.Buffer{}
ui.InputReader = inputBuf
inputBuf.WriteString("yes\n")
args := []string{
"-state", statePath,
"hashicorp/aws",
"acmecorp/aws",
}
if code := c.Run(args); code != 0 {
t.Fatalf("return code: %d\n\n%s", code, ui.ErrorWriter.String())
}
testStateOutput(t, statePath, testStateReplaceProviderOutput)
backups := testStateBackups(t, filepath.Dir(statePath))
if len(backups) != 1 {
t.Fatalf("unexpected backups: %#v", backups)
}
testStateOutput(t, backups[0], testStateReplaceProviderOutputOriginal)
})
t.Run("auto approve", func(t *testing.T) {
statePath := testStateFile(t, state)
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
inputBuf := &bytes.Buffer{}
ui.InputReader = inputBuf
args := []string{
"-state", statePath,
"-auto-approve",
"hashicorp/aws",
"acmecorp/aws",
}
if code := c.Run(args); code != 0 {
t.Fatalf("return code: %d\n\n%s", code, ui.ErrorWriter.String())
}
testStateOutput(t, statePath, testStateReplaceProviderOutput)
backups := testStateBackups(t, filepath.Dir(statePath))
if len(backups) != 1 {
t.Fatalf("unexpected backups: %#v", backups)
}
testStateOutput(t, backups[0], testStateReplaceProviderOutputOriginal)
})
t.Run("cancel at approval step", func(t *testing.T) {
statePath := testStateFile(t, state)
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
inputBuf := &bytes.Buffer{}
ui.InputReader = inputBuf
inputBuf.WriteString("no\n")
args := []string{
"-state", statePath,
"hashicorp/aws",
"acmecorp/aws",
}
if code := c.Run(args); code != 0 {
t.Fatalf("return code: %d\n\n%s", code, ui.ErrorWriter.String())
}
testStateOutput(t, statePath, testStateReplaceProviderOutputOriginal)
backups := testStateBackups(t, filepath.Dir(statePath))
if len(backups) != 0 {
t.Fatalf("unexpected backups: %#v", backups)
}
})
t.Run("no matching provider found", func(t *testing.T) {
statePath := testStateFile(t, state)
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
args := []string{
"-state", statePath,
"hashicorp/google",
"acmecorp/google",
}
if code := c.Run(args); code != 0 {
t.Fatalf("return code: %d\n\n%s", code, ui.ErrorWriter.String())
}
testStateOutput(t, statePath, testStateReplaceProviderOutputOriginal)
backups := testStateBackups(t, filepath.Dir(statePath))
if len(backups) != 0 {
t.Fatalf("unexpected backups: %#v", backups)
}
})
t.Run("invalid flags", func(t *testing.T) {
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
args := []string{
"-invalid",
"hashicorp/google",
"acmecorp/google",
}
if code := c.Run(args); code == 0 {
t.Fatalf("successful exit; want error")
}
if got, want := ui.ErrorWriter.String(), "Error parsing command-line flags"; !strings.Contains(got, want) {
t.Fatalf("missing expected error message\nwant: %s\nfull output:\n%s", want, got)
}
})
t.Run("wrong number of arguments", func(t *testing.T) {
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
args := []string{"a", "b", "c", "d"}
if code := c.Run(args); code == 0 {
t.Fatalf("successful exit; want error")
}
if got, want := ui.ErrorWriter.String(), "Exactly two arguments expected"; !strings.Contains(got, want) {
t.Fatalf("missing expected error message\nwant: %s\nfull output:\n%s", want, got)
}
})
t.Run("invalid provider strings", func(t *testing.T) {
ui := new(cli.MockUi)
view, _ := testView(t)
c := &StateReplaceProviderCommand{
StateMeta{
Meta: Meta{
Ui: ui,
View: view,
},
},
}
args := []string{
"hashicorp/google_cloud",
"-/-/google",
}
if code := c.Run(args); code == 0 {
t.Fatalf("successful exit; want error")
}
got := ui.ErrorWriter.String()
msgs := []string{
`Invalid "from" provider "hashicorp/google_cloud"`,
"Invalid provider type",
`Invalid "to" provider "-/-/google"`,
"Invalid provider source hostname",
}
for _, msg := range msgs {
if !strings.Contains(got, msg) {
t.Errorf("missing expected error message\nwant: %s\nfull output:\n%s", msg, got)
}
}
})
}
func TestStateReplaceProvider_docs(t *testing.T) {
c := &StateReplaceProviderCommand{}
if got, want := c.Help(), "Usage: terraform state replace-provider"; !strings.Contains(got, want) {
t.Fatalf("unexpected help text\nwant: %s\nfull output:\n%s", want, got)
}
if got, want := c.Synopsis(), "Replace provider in the state"; got != want {
t.Fatalf("unexpected synopsis\nwant: %s\nfull output:\n%s", want, got)
}
}
const testStateReplaceProviderOutputOriginal = `
aws_instance.alpha:
ID = alpha
provider = provider["registry.terraform.io/hashicorp/aws"]
bar = value
foo = value
aws_instance.beta:
ID = beta
provider = provider["registry.terraform.io/hashicorp/aws"]
bar = value
foo = value
azurerm_virtual_machine.gamma:
ID = gamma
provider = provider["registry.terraform.io/-/azurerm"]
baz = value
`
const testStateReplaceProviderOutput = `
aws_instance.alpha:
ID = alpha
provider = provider["registry.terraform.io/acmecorp/aws"]
bar = value
foo = value
aws_instance.beta:
ID = beta
provider = provider["registry.terraform.io/acmecorp/aws"]
bar = value
foo = value
azurerm_virtual_machine.gamma:
ID = gamma
provider = provider["registry.terraform.io/-/azurerm"]
baz = value
`