Show that planning for one workspace, switching, and then applying the plan in the wrong workspace doesn't fail

internal/command/e2etest/primary_test.go

@@ -149,6 +149,124 @@ func TestPrimarySeparatePlan(t *testing.T) {
 
 }
 
+func TestPrimarySeparatePlan_incorrectWorkspace(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(t, terraformBin, fixturePath)
+
+	//// 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)
+	}
+
+	if plan.Backend.Workspace != "default" {
+		t.Fatalf("expected plan to contain Workspace %q, got %q", "default", plan.Backend.Workspace)
+	}
+
+	// Create and select a workspace that doesn't match the plan made above
+	newWorkspace := "foobar"
+	stdout, stderr, err = tf.Run("workspace", "new", newWorkspace, "-no-color")
+	if err != nil {
+		t.Fatalf("unexpected error: %s\nstderr:\n%s", err, stderr)
+	}
+	expectedMsg := fmt.Sprintf("Created and switched to workspace %q!", newWorkspace)
+	if !strings.Contains(stdout, expectedMsg) {
+		t.Errorf("unexpected output, expected %q, but got:\n%s", expectedMsg, stdout)
+	}
+
+	//// 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()