terraform/command/e2etest/primary_test.go

232 lines
7.1 KiB
Go

package e2etest
import (
"path/filepath"
"reflect"
"sort"
"strings"
"testing"
"github.com/davecgh/go-spew/spew"
"github.com/hashicorp/terraform/internal/e2e"
"github.com/hashicorp/terraform/plans"
"github.com/zclconf/go-cty/cty"
)
// The tests in this file are for the "primary workflow", which includes
// variants of the following sequence, with different details:
// terraform init
// terraform plan
// terraform apply
// terraform destroy
func TestPrimarySeparatePlan(t *testing.T) {
t.Parallel()
// This test reaches out to releases.hashicorp.com to download the
// template and null providers, so it can only run if network access is
// allowed.
skipIfCannotAccessNetwork(t)
fixturePath := filepath.Join("testdata", "full-workflow-null")
tf := e2e.NewBinary(terraformBin, fixturePath)
defer tf.Close()
//// INIT
stdout, stderr, err := tf.Run("init")
if err != nil {
t.Fatalf("unexpected init error: %s\nstderr:\n%s", err, stderr)
}
// Make sure we actually downloaded the plugins, rather than picking up
// copies that might be already installed globally on the system.
if !strings.Contains(stdout, "Installing hashicorp/template v") {
t.Errorf("template provider download message is missing from init output:\n%s", stdout)
t.Logf("(this can happen if you have a copy of the plugin in one of the global plugin search dirs)")
}
if !strings.Contains(stdout, "Installing hashicorp/null v") {
t.Errorf("null provider download message is missing from init output:\n%s", stdout)
t.Logf("(this can happen if you have a copy of the plugin in one of the global plugin search dirs)")
}
//// PLAN
stdout, stderr, err = tf.Run("plan", "-out=tfplan")
if err != nil {
t.Fatalf("unexpected plan error: %s\nstderr:\n%s", err, stderr)
}
if !strings.Contains(stdout, "1 to add, 0 to change, 0 to destroy") {
t.Errorf("incorrect plan tally; want 1 to add:\n%s", stdout)
}
if !strings.Contains(stdout, "Saved the plan to: tfplan") {
t.Errorf("missing \"Saved the plan to...\" message in plan output\n%s", stdout)
}
if !strings.Contains(stdout, "terraform apply \"tfplan\"") {
t.Errorf("missing next-step instruction in plan output\n%s", stdout)
}
plan, err := tf.Plan("tfplan")
if err != nil {
t.Fatalf("failed to read plan file: %s", err)
}
diffResources := plan.Changes.Resources
if len(diffResources) != 1 {
t.Errorf("incorrect number of resources in plan")
}
expected := map[string]plans.Action{
"null_resource.test": plans.Create,
}
for _, r := range diffResources {
expectedAction, ok := expected[r.Addr.String()]
if !ok {
t.Fatalf("unexpected change for %q", r.Addr)
}
if r.Action != expectedAction {
t.Fatalf("unexpected action %q for %q", r.Action, r.Addr)
}
}
//// APPLY
stdout, stderr, err = tf.Run("apply", "tfplan")
if err != nil {
t.Fatalf("unexpected apply error: %s\nstderr:\n%s", err, stderr)
}
if !strings.Contains(stdout, "Resources: 1 added, 0 changed, 0 destroyed") {
t.Errorf("incorrect apply tally; want 1 added:\n%s", stdout)
}
state, err := tf.LocalState()
if err != nil {
t.Fatalf("failed to read state file: %s", err)
}
stateResources := state.RootModule().Resources
var gotResources []string
for n := range stateResources {
gotResources = append(gotResources, n)
}
sort.Strings(gotResources)
wantResources := []string{
"data.template_file.test",
"null_resource.test",
}
if !reflect.DeepEqual(gotResources, wantResources) {
t.Errorf("wrong resources in state\ngot: %#v\nwant: %#v", gotResources, wantResources)
}
//// DESTROY
stdout, stderr, err = tf.Run("destroy", "-auto-approve")
if err != nil {
t.Fatalf("unexpected destroy error: %s\nstderr:\n%s", err, stderr)
}
if !strings.Contains(stdout, "Resources: 1 destroyed") {
t.Errorf("incorrect destroy tally; want 1 destroyed:\n%s", stdout)
}
state, err = tf.LocalState()
if err != nil {
t.Fatalf("failed to read state file after destroy: %s", err)
}
stateResources = state.RootModule().Resources
if len(stateResources) != 0 {
t.Errorf("wrong resources in state after destroy; want none, but still have:%s", spew.Sdump(stateResources))
}
}
func TestPrimaryChdirOption(t *testing.T) {
t.Parallel()
// This test case does not include any provider dependencies, so it's
// safe to run it even when network access is disallowed.
fixturePath := filepath.Join("testdata", "chdir-option")
tf := e2e.NewBinary(terraformBin, fixturePath)
defer tf.Close()
//// INIT
_, stderr, err := tf.Run("-chdir=subdir", "init")
if err != nil {
t.Fatalf("unexpected init error: %s\nstderr:\n%s", err, stderr)
}
//// PLAN
stdout, stderr, err := tf.Run("-chdir=subdir", "plan", "-out=tfplan")
if err != nil {
t.Fatalf("unexpected plan error: %s\nstderr:\n%s", err, stderr)
}
if want := "You can apply this plan to save these new output values"; !strings.Contains(stdout, want) {
t.Errorf("missing expected message for an outputs-only plan\ngot:\n%s\n\nwant substring: %s", stdout, want)
}
if !strings.Contains(stdout, "Saved the plan to: tfplan") {
t.Errorf("missing \"Saved the plan to...\" message in plan output\n%s", stdout)
}
if !strings.Contains(stdout, "terraform apply \"tfplan\"") {
t.Errorf("missing next-step instruction in plan output\n%s", stdout)
}
// The saved plan is in the subdirectory because -chdir switched there
plan, err := tf.Plan("subdir/tfplan")
if err != nil {
t.Fatalf("failed to read plan file: %s", err)
}
diffResources := plan.Changes.Resources
if len(diffResources) != 0 {
t.Errorf("incorrect diff in plan; want no resource changes, but have:\n%s", spew.Sdump(diffResources))
}
//// APPLY
stdout, stderr, err = tf.Run("-chdir=subdir", "apply", "tfplan")
if err != nil {
t.Fatalf("unexpected apply error: %s\nstderr:\n%s", err, stderr)
}
if !strings.Contains(stdout, "Resources: 0 added, 0 changed, 0 destroyed") {
t.Errorf("incorrect apply tally; want 0 added:\n%s", stdout)
}
// The state file is in subdir because -chdir changed the current working directory.
state, err := tf.StateFromFile("subdir/terraform.tfstate")
if err != nil {
t.Fatalf("failed to read state file: %s", err)
}
gotOutput := state.RootModule().OutputValues["cwd"]
wantOutputValue := cty.StringVal(tf.Path()) // path.cwd returns the original path, because path.root is how we get the overridden path
if gotOutput == nil || !wantOutputValue.RawEquals(gotOutput.Value) {
t.Errorf("incorrect value for cwd output\ngot: %#v\nwant Value: %#v", gotOutput, wantOutputValue)
}
gotOutput = state.RootModule().OutputValues["root"]
wantOutputValue = cty.StringVal(tf.Path("subdir")) // path.root is a relative path, but the text fixture uses abspath on it.
if gotOutput == nil || !wantOutputValue.RawEquals(gotOutput.Value) {
t.Errorf("incorrect value for root output\ngot: %#v\nwant Value: %#v", gotOutput, wantOutputValue)
}
if len(state.RootModule().Resources) != 0 {
t.Errorf("unexpected resources in state")
}
//// DESTROY
stdout, stderr, err = tf.Run("-chdir=subdir", "destroy", "-auto-approve")
if err != nil {
t.Fatalf("unexpected destroy error: %s\nstderr:\n%s", err, stderr)
}
if !strings.Contains(stdout, "Resources: 0 destroyed") {
t.Errorf("incorrect destroy tally; want 0 destroyed:\n%s", stdout)
}
}