Backend State Migration: Add remote backend test

internal/cloud/e2e/apply_auto_approve_test.go

@@ -29,7 +29,7 @@ func Test_terraform_apply_autoApprove(t *testing.T) {
 					TerraformVersion: tfe.String(terraformVersion),
 					AutoApply:        tfe.Bool(false),
 				}
-				workspace := createWorkspace(t, org, wOpts)
+				workspace := createWorkspace(t, org.Name, wOpts)
 				cleanup := func() {
 					defer orgCleanup()
 				}
@@ -73,7 +73,7 @@ func Test_terraform_apply_autoApprove(t *testing.T) {
 					TerraformVersion: tfe.String(terraformVersion),
 					AutoApply:        tfe.Bool(true),
 				}
-				workspace := createWorkspace(t, org, wOpts)
+				workspace := createWorkspace(t, org.Name, wOpts)
 				cleanup := func() {
 					defer orgCleanup()
 				}
@@ -117,7 +117,7 @@ func Test_terraform_apply_autoApprove(t *testing.T) {
 					TerraformVersion: tfe.String(terraformVersion),
 					AutoApply:        tfe.Bool(false),
 				}
-				workspace := createWorkspace(t, org, wOpts)
+				workspace := createWorkspace(t, org.Name, wOpts)
 				cleanup := func() {
 					defer orgCleanup()
 				}
@@ -162,7 +162,7 @@ func Test_terraform_apply_autoApprove(t *testing.T) {
 					TerraformVersion: tfe.String(terraformVersion),
 					AutoApply:        tfe.Bool(true),
 				}
-				workspace := createWorkspace(t, org, wOpts)
+				workspace := createWorkspace(t, org.Name, wOpts)
 				cleanup := func() {
 					defer orgCleanup()
 				}

internal/cloud/e2e/helper_test.go

@@ -56,9 +56,9 @@ func createOrganization(t *testing.T) (*tfe.Organization, func()) {
 	}
 }
 
-func createWorkspace(t *testing.T, org *tfe.Organization, wOpts tfe.WorkspaceCreateOptions) *tfe.Workspace {
+func createWorkspace(t *testing.T, orgName string, wOpts tfe.WorkspaceCreateOptions) *tfe.Workspace {
 	ctx := context.Background()
-	w, err := tfeClient.Workspaces.Create(ctx, org.Name, wOpts)
+	w, err := tfeClient.Workspaces.Create(ctx, orgName, wOpts)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -66,6 +66,15 @@ func createWorkspace(t *testing.T, org *tfe.Organization, wOpts tfe.WorkspaceCre
 	return w
 }
 
+func getWorkspace(workspaces []*tfe.Workspace, workspace string) (*tfe.Workspace, bool) {
+	for _, ws := range workspaces {
+		if ws.Name == workspace {
+			return ws, false
+		}
+	}
+	return nil, true
+}
+
 func randomString(t *testing.T) string {
 	v, err := uuid.GenerateUUID()
 	if err != nil {
@@ -87,6 +96,44 @@ output "val" {
 `)
 }
 
+func terraformConfigRemoteBackendName(org, name string) string {
+	return fmt.Sprintf(`
+terraform {
+  backend "remote" {
+    hostname = "%s"
+    organization = "%s"
+
+    workspaces {
+      name = "%s"
+    }
+  }
+}
+
+output "val" {
+  value = "${terraform.workspace}"
+}
+`, tfeHostname, org, name)
+}
+
+func terraformConfigRemoteBackendPrefix(org, prefix string) string {
+	return fmt.Sprintf(`
+terraform {
+  backend "remote" {
+    hostname = "%s"
+    organization = "%s"
+
+    workspaces {
+      prefix = "%s"
+    }
+  }
+}
+
+output "val" {
+  value = "${terraform.workspace}"
+}
+`, tfeHostname, org, prefix)
+}
+
 func terraformConfigCloudBackendTags(org, tag string) string {
 	return fmt.Sprintf(`
 terraform {

internal/cloud/e2e/migrate_state_multi_to_tfc_test.go

@@ -5,7 +5,6 @@ package main
 
 import (
 	"context"
-	"fmt"
 	"io/ioutil"
 	"os"
 	"testing"
@@ -168,7 +167,7 @@ func Test_migrate_multi_to_tfc_cloud_name_strategy(t *testing.T) {
 	}
 
 	for name, tc := range cases {
-		fmt.Println("Test: ", name)
+		t.Log("Test: ", name)
 		organization, cleanup := createOrganization(t)
 		defer cleanup()
 		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
@@ -192,6 +191,7 @@ func Test_migrate_multi_to_tfc_cloud_name_strategy(t *testing.T) {
 			op.prep(t, organization.Name, tf.WorkDir())
 			for _, tfCmd := range op.commands {
 				t.Log("Running commands: ", tfCmd.command)
+				tfCmd.command = append(tfCmd.command, "-ignore-remote-version")
 				cmd := tf.Cmd(tfCmd.command...)
 				cmd.Stdin = exp.Tty()
 				cmd.Stdout = exp.Tty()
@@ -357,7 +357,7 @@ func Test_migrate_multi_to_tfc_cloud_tags_strategy(t *testing.T) {
 	}
 
 	for name, tc := range cases {
-		fmt.Println("Test: ", name)
+		t.Log("Test: ", name)
 		organization, cleanup := createOrganization(t)
 		t.Log(organization.Name)
 		defer cleanup()

internal/cloud/e2e/migrate_state_remote_backend_to_tfc_test.go

@@ -4,56 +4,912 @@
 package main
 
 import (
+	"context"
+	"io/ioutil"
+	"os"
 	"testing"
+
+	expect "github.com/Netflix/go-expect"
+	tfe "github.com/hashicorp/go-tfe"
+	"github.com/hashicorp/terraform/internal/e2e"
 )
 
-// REMOTE BACKEND
-/*
-	- RB name -> TFC name
-	-- straight copy if only if different name, or same WS name in diff org
-	-- other
-	--  ensure that the local workspace, after migration, is the new name (in the tfc config block)
-	- RB name -> TFC tags
-	-- just add tag, if in same org
-	-- If new org, if WS exists, just add tag
-	-- If new org, if WS not exists, create and add tag
-	- RB prefix -> TFC name
-	-- create if not exists
-	-- migrate the current worksapce state to ws name
-	- RB prefix -> TFC tags
-	-- update previous workspaces (prefix + local) with cloud config tag
-	-- Rename the local workspaces to match the TFC workspaces (prefix + former local, ie app-prod). inform user
-
-*/
-func Test_migrate_remote_backend_name_to_tfc(t *testing.T) {
-	t.Skip("TODO: see comments")
-	_ = map[string]struct {
+func Test_migrate_remote_backend_name_to_tfc_name(t *testing.T) {
+	ctx := context.Background()
+	cases := map[string]struct {
 		operations  []operationSets
 		validations func(t *testing.T, orgName string)
 	}{
-		"single workspace with backend name strategy, to cloud with name strategy": {},
-		"single workspace with backend name strategy, to cloud with tags strategy": {},
+		"backend name strategy, to cloud with name strategy": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						remoteWorkspace := "remote-workspace"
+						tfBlock := terraformConfigRemoteBackendName(orgName, remoteWorkspace)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `Successfully configured the backend "remote"!`,
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "remote-workspace"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "cloud-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `Do you want to copy existing state to the new backend?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `cloud-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				expectedName := "cloud-workspace"
+				ws, err := tfeClient.Workspaces.Read(ctx, orgName, expectedName)
+				if err != nil {
+					t.Fatal(err)
+				}
+				if ws == nil {
+					t.Fatalf("Expected workspace %s to be present, but is not.", expectedName)
+				}
+			},
+		},
+		"backend name strategy, to cloud name strategy, using the same name": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						remoteWorkspace := "remote-workspace"
+						tfBlock := terraformConfigRemoteBackendName(orgName, remoteWorkspace)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `Successfully configured the backend "remote"!`,
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "remote-workspace"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "remote-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `Terraform has been successfully initialized!`,
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `remote-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				expectedName := "remote-workspace"
+				ws, err := tfeClient.Workspaces.Read(ctx, orgName, expectedName)
+				if err != nil {
+					t.Fatal(err)
+				}
+				if ws == nil {
+					t.Fatalf("Expected workspace %s to be present, but is not.", expectedName)
+				}
+			},
+		},
+	}
+
+	for name, tc := range cases {
+		t.Log("Test: ", name)
+		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer exp.Close()
+
+		tmpDir, err := ioutil.TempDir("", "terraform-test")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDir)
+
+		tf := e2e.NewBinary(terraformBin, tmpDir)
+		tf.AddEnv("TF_LOG=INFO")
+		tf.AddEnv(cliConfigFileEnv)
+		defer tf.Close()
+
+		organization, cleanup := createOrganization(t)
+		defer cleanup()
+		for _, op := range tc.operations {
+			op.prep(t, organization.Name, tf.WorkDir())
+			for _, tfCmd := range op.commands {
+				cmd := tf.Cmd(tfCmd.command...)
+				cmd.Stdin = exp.Tty()
+				cmd.Stdout = exp.Tty()
+				cmd.Stderr = exp.Tty()
+
+				err = cmd.Start()
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if tfCmd.expectedCmdOutput != "" {
+					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
+					if err != nil {
+						t.Fatal(err)
+					}
+				}
+
+				lenInput := len(tfCmd.userInput)
+				lenInputOutput := len(tfCmd.postInputOutput)
+				if lenInput > 0 {
+					for i := 0; i < lenInput; i++ {
+						input := tfCmd.userInput[i]
+						exp.SendLine(input)
+						// use the index to find the corresponding
+						// output that matches the input.
+						if lenInputOutput-1 >= i {
+							output := tfCmd.postInputOutput[i]
+							_, err := exp.ExpectString(output)
+							if err != nil {
+								t.Fatal(err)
+							}
+						}
+					}
+				}
+
+				err = cmd.Wait()
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+
+		if tc.validations != nil {
+			tc.validations(t, organization.Name)
+		}
+	}
+}
+
+func Test_migrate_remote_backend_name_to_tfc_name_different_org(t *testing.T) {
+	ctx := context.Background()
+	cases := map[string]struct {
+		operations  []operationSets
+		validations func(t *testing.T, orgName string)
+	}{
+		"backend name strategy, to cloud name strategy, using the same name, different organization": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						remoteWorkspace := "remote-workspace"
+						tfBlock := terraformConfigRemoteBackendName(orgName, remoteWorkspace)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `Successfully configured the backend "remote"!`,
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "remote-workspace"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "remote-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `Do you want to copy existing state to the new backend?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `remote-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				expectedName := "remote-workspace"
+				ws, err := tfeClient.Workspaces.Read(ctx, orgName, expectedName)
+				if err != nil {
+					t.Fatal(err)
+				}
+				if ws == nil {
+					t.Fatalf("Expected workspace %s to be present, but is not.", expectedName)
+				}
+			},
+		},
+	}
+
+	for name, tc := range cases {
+		t.Log("Test: ", name)
+		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer exp.Close()
+
+		tmpDir, err := ioutil.TempDir("", "terraform-test")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDir)
+
+		tf := e2e.NewBinary(terraformBin, tmpDir)
+		tf.AddEnv("TF_LOG=INFO")
+		tf.AddEnv(cliConfigFileEnv)
+		defer tf.Close()
+
+		orgOne, cleanupOne := createOrganization(t)
+		orgTwo, cleanupTwo := createOrganization(t)
+		defer cleanupOne()
+		defer cleanupTwo()
+		orgs := []string{orgOne.Name, orgTwo.Name}
+		var orgName string
+		for index, op := range tc.operations {
+			orgName = orgs[index]
+			op.prep(t, orgName, tf.WorkDir())
+			for _, tfCmd := range op.commands {
+				cmd := tf.Cmd(tfCmd.command...)
+				cmd.Stdin = exp.Tty()
+				cmd.Stdout = exp.Tty()
+				cmd.Stderr = exp.Tty()
+
+				err = cmd.Start()
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if tfCmd.expectedCmdOutput != "" {
+					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
+					if err != nil {
+						t.Fatal(err)
+					}
+				}
+
+				lenInput := len(tfCmd.userInput)
+				lenInputOutput := len(tfCmd.postInputOutput)
+				if lenInput > 0 {
+					for i := 0; i < lenInput; i++ {
+						input := tfCmd.userInput[i]
+						exp.SendLine(input)
+						// use the index to find the corresponding
+						// output that matches the input.
+						if lenInputOutput-1 >= i {
+							output := tfCmd.postInputOutput[i]
+							_, err := exp.ExpectString(output)
+							if err != nil {
+								t.Fatal(err)
+							}
+						}
+					}
+				}
+
+				err = cmd.Wait()
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+
+		if tc.validations != nil {
+			tc.validations(t, orgName)
+		}
+	}
+}
+
+func Test_migrate_remote_backend_name_to_tfc_tags(t *testing.T) {
+	ctx := context.Background()
+	cases := map[string]struct {
+		operations  []operationSets
+		validations func(t *testing.T, orgName string)
+	}{
+		"single workspace with backend name strategy, to cloud with tags strategy": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						remoteWorkspace := "remote-workspace"
+						tfBlock := terraformConfigRemoteBackendName(orgName, remoteWorkspace)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `Successfully configured the backend "remote"!`,
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "remote-workspace"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `default`,
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						tag := "app"
+						tfBlock := terraformConfigCloudBackendTags(orgName, tag)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `The "cloud" backend configuration only allows named workspaces!`,
+							userInput:         []string{"cloud-workspace", "yes"},
+							postInputOutput: []string{
+								`Do you want to copy existing state to the new backend?`,
+								`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `cloud-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				wsList, err := tfeClient.Workspaces.List(ctx, orgName, tfe.WorkspaceListOptions{
+					Tags: tfe.String("app"),
+				})
+				if err != nil {
+					t.Fatal(err)
+				}
+				if len(wsList.Items) != 1 {
+					t.Fatalf("Expected number of workspaces to be 1, but got %d", len(wsList.Items))
+				}
+				ws := wsList.Items[0]
+				if ws.Name != "cloud-workspace" {
+					t.Fatalf("Expected workspace to be `cloud-workspace`, but is %s", ws.Name)
+				}
+			},
+		},
+	}
+
+	for name, tc := range cases {
+		t.Log("Test: ", name)
+		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer exp.Close()
+
+		tmpDir, err := ioutil.TempDir("", "terraform-test")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDir)
+
+		tf := e2e.NewBinary(terraformBin, tmpDir)
+		tf.AddEnv("TF_LOG=INFO")
+		tf.AddEnv(cliConfigFileEnv)
+		defer tf.Close()
+
+		organization, cleanup := createOrganization(t)
+		defer cleanup()
+		for _, op := range tc.operations {
+			op.prep(t, organization.Name, tf.WorkDir())
+			for _, tfCmd := range op.commands {
+				cmd := tf.Cmd(tfCmd.command...)
+				cmd.Stdin = exp.Tty()
+				cmd.Stdout = exp.Tty()
+				cmd.Stderr = exp.Tty()
+
+				err = cmd.Start()
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if tfCmd.expectedCmdOutput != "" {
+					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
+					if err != nil {
+						t.Fatal(err)
+					}
+				}
+
+				lenInput := len(tfCmd.userInput)
+				lenInputOutput := len(tfCmd.postInputOutput)
+				if lenInput > 0 {
+					for i := 0; i < lenInput; i++ {
+						input := tfCmd.userInput[i]
+						exp.SendLine(input)
+						// use the index to find the corresponding
+						// output that matches the input.
+						if lenInputOutput-1 >= i {
+							output := tfCmd.postInputOutput[i]
+							_, err := exp.ExpectString(output)
+							if err != nil {
+								t.Fatal(err)
+							}
+						}
+					}
+				}
+
+				err = cmd.Wait()
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+
+		if tc.validations != nil {
+			tc.validations(t, organization.Name)
+		}
 	}
 }
 
 func Test_migrate_remote_backend_prefix_to_tfc_name(t *testing.T) {
-	t.Skip("TODO: see comments")
-	_ = map[string]struct {
+	ctx := context.Background()
+	cases := map[string]struct {
 		operations  []operationSets
 		validations func(t *testing.T, orgName string)
 	}{
-		"single workspace with backend prefix strategy, to cloud with name strategy":    {},
-		"multiple workspaces with backend prefix strategy, to cloud with name strategy": {},
+		"single workspace with backend prefix strategy, to cloud with name strategy": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{Name: tfe.String("app-one")})
+						prefix := "app-"
+						tfBlock := terraformConfigRemoteBackendPrefix(orgName, prefix)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `Terraform has been successfully initialized!`,
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "app-one"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "cloud-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `Do you want to copy existing state to the new backend?`,
+							userInput:         []string{"yes"},
+							postInputOutput: []string{
+								`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `cloud-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				expectedName := "cloud-workspace"
+				ws, err := tfeClient.Workspaces.Read(ctx, orgName, expectedName)
+				if err != nil {
+					t.Fatal(err)
+				}
+				if ws == nil {
+					t.Fatalf("Expected workspace %s to be present, but is not.", expectedName)
+				}
+			},
+		},
+		"multiple workspaces with backend prefix strategy, to cloud with name strategy": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{Name: tfe.String("app-one")})
+						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{Name: tfe.String("app-two")})
+						prefix := "app-"
+						tfBlock := terraformConfigRemoteBackendPrefix(orgName, prefix)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `The currently selected workspace (default) does not exist.`,
+							userInput:         []string{"1"},
+							postInputOutput:   []string{`Terraform has been successfully initialized!`},
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "app-one"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+						{
+							command:           []string{"workspace", "list"},
+							expectedCmdOutput: "* one", // app name retrieved via prefix
+						},
+						{
+							command:           []string{"workspace", "select", "two"},
+							expectedCmdOutput: `Switched to workspace "two".`, // app name retrieved via prefix
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						wsName := "cloud-workspace"
+						tfBlock := terraformConfigCloudBackendName(orgName, wsName)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `Do you want to copy only your current workspace?`,
+							userInput:         []string{"yes"},
+							postInputOutput: []string{
+								`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: `cloud-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				expectedName := "cloud-workspace"
+				ws, err := tfeClient.Workspaces.Read(ctx, orgName, expectedName)
+				if err != nil {
+					t.Fatal(err)
+				}
+				if ws == nil {
+					t.Fatalf("Expected workspace %s to be present, but is not.", expectedName)
+				}
+				wsList, err := tfeClient.Workspaces.List(ctx, orgName, tfe.WorkspaceListOptions{})
+				if err != nil {
+					t.Fatal(err)
+				}
+				if len(wsList.Items) != 3 {
+					t.Fatalf("expected number of workspaces in this org to be 3, but got %d", len(wsList.Items))
+				}
+				ws, empty := getWorkspace(wsList.Items, "cloud-workspace")
+				if empty {
+					t.Fatalf("expected workspaces to include 'cloud-workspace' but didn't.")
+				}
+				ws, empty = getWorkspace(wsList.Items, "app-one")
+				if empty {
+					t.Fatalf("expected workspaces to include 'app-one' but didn't.")
+				}
+				ws, empty = getWorkspace(wsList.Items, "app-two")
+				if empty {
+					t.Fatalf("expected workspaces to include 'app-two' but didn't.")
+				}
+			},
+		},
+	}
+
+	for name, tc := range cases {
+		t.Log("Test: ", name)
+		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer exp.Close()
+
+		tmpDir, err := ioutil.TempDir("", "terraform-test")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDir)
+
+		tf := e2e.NewBinary(terraformBin, tmpDir)
+		tf.AddEnv("TF_LOG=INFO")
+		tf.AddEnv(cliConfigFileEnv)
+		defer tf.Close()
+
+		organization, cleanup := createOrganization(t)
+		defer cleanup()
+		for _, op := range tc.operations {
+			op.prep(t, organization.Name, tf.WorkDir())
+			for _, tfCmd := range op.commands {
+				cmd := tf.Cmd(tfCmd.command...)
+				cmd.Stdin = exp.Tty()
+				cmd.Stdout = exp.Tty()
+				cmd.Stderr = exp.Tty()
+
+				err = cmd.Start()
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if tfCmd.expectedCmdOutput != "" {
+					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
+					if err != nil {
+						t.Fatal(err)
+					}
+				}
+
+				lenInput := len(tfCmd.userInput)
+				lenInputOutput := len(tfCmd.postInputOutput)
+				if lenInput > 0 {
+					for i := 0; i < lenInput; i++ {
+						input := tfCmd.userInput[i]
+						exp.SendLine(input)
+						// use the index to find the corresponding
+						// output that matches the input.
+						if lenInputOutput-1 >= i {
+							output := tfCmd.postInputOutput[i]
+							_, err := exp.ExpectString(output)
+							if err != nil {
+								t.Fatal(err)
+							}
+						}
+					}
+				}
+
+				err = cmd.Wait()
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+
+		if tc.validations != nil {
+			tc.validations(t, organization.Name)
+		}
 	}
 }
 
 func Test_migrate_remote_backend_prefix_to_tfc_tags(t *testing.T) {
-	t.Skip("TODO: see comments")
-	_ = map[string]struct {
+	ctx := context.Background()
+	cases := map[string]struct {
 		operations  []operationSets
 		validations func(t *testing.T, orgName string)
 	}{
-		"single workspace with backend prefix strategy, to cloud with tags strategy":    {},
-		"multiple workspaces with backend prefix strategy, to cloud with tags strategy": {},
+		"single workspace with backend prefix strategy, to cloud with tags strategy": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{Name: tfe.String("app-one")})
+						prefix := "app-"
+						tfBlock := terraformConfigRemoteBackendPrefix(orgName, prefix)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `Terraform has been successfully initialized!`,
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "app-one"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						tag := "app"
+						tfBlock := terraformConfigCloudBackendTags(orgName, tag)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `The "cloud" backend configuration only allows named workspaces!`,
+							userInput:         []string{"cloud-workspace", "yes"},
+							postInputOutput: []string{
+								`Do you want to copy existing state to the new backend?`,
+								`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "list"},
+							expectedCmdOutput: `cloud-workspace`,
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				expectedName := "cloud-workspace"
+				ws, err := tfeClient.Workspaces.Read(ctx, orgName, expectedName)
+				if err != nil {
+					t.Fatal(err)
+				}
+				if ws == nil {
+					t.Fatalf("Expected workspace %s to be present, but is not.", expectedName)
+				}
+			},
+		},
+		"multiple workspaces with backend prefix strategy, to cloud with tags strategy": {
+			operations: []operationSets{
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{Name: tfe.String("app-one")})
+						_ = createWorkspace(t, orgName, tfe.WorkspaceCreateOptions{Name: tfe.String("app-two")})
+						prefix := "app-"
+						tfBlock := terraformConfigRemoteBackendPrefix(orgName, prefix)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init"},
+							expectedCmdOutput: `The currently selected workspace (default) does not exist.`,
+							userInput:         []string{"1"},
+							postInputOutput:   []string{`Terraform has been successfully initialized!`},
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "app-one"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+						{
+							command: []string{"workspace", "select", "two"},
+						},
+						{
+							command:           []string{"apply"},
+							expectedCmdOutput: `Do you want to perform these actions in workspace "app-two"?`,
+							userInput:         []string{"yes"},
+							postInputOutput:   []string{`Apply complete!`},
+						},
+					},
+				},
+				{
+					prep: func(t *testing.T, orgName, dir string) {
+						tag := "app"
+						tfBlock := terraformConfigCloudBackendTags(orgName, tag)
+						writeMainTF(t, tfBlock, dir)
+					},
+					commands: []tfCommand{
+						{
+							command:           []string{"init", "-migrate-state", "-ignore-remote-version"},
+							expectedCmdOutput: `Would you like to rename your workspaces?`,
+							userInput:         []string{"1", "*"},
+							postInputOutput: []string{`What pattern would you like to add to all your workspaces?`,
+								`Successfully configured the backend "cloud"!`},
+						},
+						{
+							command:           []string{"workspace", "show"},
+							expectedCmdOutput: "two", // this comes from the original workspace name from the previous backend.
+						},
+						{
+							command:           []string{"workspace", "select", "one"},
+							expectedCmdOutput: `Switched to workspace "one".`, // this comes from the original workspace name from the previous backend.
+						},
+					},
+				},
+			},
+			validations: func(t *testing.T, orgName string) {
+				wsList, err := tfeClient.Workspaces.List(ctx, orgName, tfe.WorkspaceListOptions{
+					Tags: tfe.String("app"),
+				})
+				if err != nil {
+					t.Fatal(err)
+				}
+				if len(wsList.Items) != 2 {
+					t.Logf("Expected the number of workspaces to be 2, but got %d", len(wsList.Items))
+				}
+				ws, empty := getWorkspace(wsList.Items, "one")
+				if empty {
+					t.Fatalf("expected workspaces to include 'one' but didn't.")
+				}
+				if len(ws.TagNames) == 0 {
+					t.Fatalf("expected workspaces 'one' to have tags.")
+				}
+				ws, empty = getWorkspace(wsList.Items, "two")
+				if empty {
+					t.Fatalf("expected workspaces to include 'two' but didn't.")
+				}
+				if len(ws.TagNames) == 0 {
+					t.Fatalf("expected workspaces 'two' to have tags.")
+				}
+			},
+		},
+	}
+
+	for name, tc := range cases {
+		t.Log("Test: ", name)
+		exp, err := expect.NewConsole(expect.WithStdout(os.Stdout), expect.WithDefaultTimeout(expectConsoleTimeout))
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer exp.Close()
+
+		tmpDir, err := ioutil.TempDir("", "terraform-test")
+		if err != nil {
+			t.Fatal(err)
+		}
+		defer os.RemoveAll(tmpDir)
+
+		tf := e2e.NewBinary(terraformBin, tmpDir)
+		tf.AddEnv("TF_LOG=INFO")
+		tf.AddEnv(cliConfigFileEnv)
+		defer tf.Close()
+
+		organization, cleanup := createOrganization(t)
+		defer cleanup()
+		for _, op := range tc.operations {
+			op.prep(t, organization.Name, tf.WorkDir())
+			for _, tfCmd := range op.commands {
+				cmd := tf.Cmd(tfCmd.command...)
+				cmd.Stdin = exp.Tty()
+				cmd.Stdout = exp.Tty()
+				cmd.Stderr = exp.Tty()
+
+				err = cmd.Start()
+				if err != nil {
+					t.Fatal(err)
+				}
+
+				if tfCmd.expectedCmdOutput != "" {
+					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
+					if err != nil {
+						t.Fatal(err)
+					}
+				}
+
+				lenInput := len(tfCmd.userInput)
+				lenInputOutput := len(tfCmd.postInputOutput)
+				if lenInput > 0 {
+					for i := 0; i < lenInput; i++ {
+						input := tfCmd.userInput[i]
+						exp.SendLine(input)
+						// use the index to find the corresponding
+						// output that matches the input.
+						if lenInputOutput-1 >= i {
+							output := tfCmd.postInputOutput[i]
+							_, err := exp.ExpectString(output)
+							if err != nil {
+								t.Fatal(err)
+							}
+						}
+					}
+				}
+
+				err = cmd.Wait()
+				if err != nil {
+					t.Fatal(err)
+				}
+			}
+		}
+
+		if tc.validations != nil {
+			tc.validations(t, organization.Name)
+		}
 	}
 }

internal/cloud/e2e/run_variables_test.go

@@ -57,16 +57,16 @@ func Test_cloud_run_variables(t *testing.T) {
 					},
 					commands: []tfCommand{
 						{
-							command:        []string{"init"},
-							expectedOutput: `Successfully configured the backend "cloud"!`,
+							command:           []string{"init"},
+							expectedCmdOutput: `Successfully configured the backend "cloud"!`,
 						},
 						{
-							command:        []string{"plan", "-var", "foo=bar"},
-							expectedOutput: `  + test_cli = "bar"`,
+							command:           []string{"plan", "-var", "foo=bar"},
+							expectedCmdOutput: `  + test_cli = "bar"`,
 						},
 						{
-							command:        []string{"plan", "-var", "foo=bar"},
-							expectedOutput: `  + test_env = "qux"`,
+							command:           []string{"plan", "-var", "foo=bar"},
+							expectedCmdOutput: `  + test_env = "qux"`,
 						},
 					},
 				},
@@ -110,23 +110,28 @@ func Test_cloud_run_variables(t *testing.T) {
 					t.Fatal(err)
 				}
 
-				if tfCmd.expectedOutput != "" {
-					_, err := exp.ExpectString(tfCmd.expectedOutput)
+				if tfCmd.expectedCmdOutput != "" {
+					_, err := exp.ExpectString(tfCmd.expectedCmdOutput)
 					if err != nil {
 						t.Fatal(err)
 					}
 				}
 
-				if len(tfCmd.userInput) > 0 {
-					for _, input := range tfCmd.userInput {
+				lenInput := len(tfCmd.userInput)
+				lenInputOutput := len(tfCmd.postInputOutput)
+				if lenInput > 0 {
+					for i := 0; i < lenInput; i++ {
+						input := tfCmd.userInput[i]
 						exp.SendLine(input)
-					}
-				}
-
-				if tfCmd.postInputOutput != "" {
-					_, err := exp.ExpectString(tfCmd.postInputOutput)
-					if err != nil {
-						t.Fatal(err)
+						// use the index to find the corresponding
+						// output that matches the input.
+						if lenInputOutput-1 >= i {
+							output := tfCmd.postInputOutput[i]
+							_, err := exp.ExpectString(output)
+							if err != nil {
+								t.Fatal(err)
+							}
+						}
 					}
 				}
 

internal/command/meta_backend_migrate.go

@@ -44,7 +44,7 @@ type backendMigrateOpts struct {
 //
 // This will attempt to lock both states for the migration.
 func (m *Meta) backendMigrateState(opts *backendMigrateOpts) error {
-	log.Printf("[TRACE] backendMigrateState: need to migrate from %q to %q backend config", opts.SourceType, opts.DestinationType)
+	log.Printf("[INFO] backendMigrateState: need to migrate from %q to %q backend config", opts.SourceType, opts.DestinationType)
 	// We need to check what the named state status is. If we're converting
 	// from multi-state to single-state for example, we need to handle that.
 	var sourceSingleState, destinationSingleState, sourceTFC, destinationTFC bool
@@ -154,7 +154,7 @@ func (m *Meta) backendMigrateState(opts *backendMigrateOpts) error {
 
 // Multi-state to multi-state.
 func (m *Meta) backendMigrateState_S_S(opts *backendMigrateOpts) error {
-	log.Print("[TRACE] backendMigrateState: migrating all named workspaces")
+	log.Print("[INFO] backendMigrateState: migrating all named workspaces")
 
 	migrate := opts.force
 	if !migrate {
@@ -209,9 +209,9 @@ func (m *Meta) backendMigrateState_S_S(opts *backendMigrateOpts) error {
 
 // Multi-state to single state.
 func (m *Meta) backendMigrateState_S_s(opts *backendMigrateOpts) error {
-	log.Printf("[TRACE] backendMigrateState: destination backend type %q does not support named workspaces", opts.DestinationType)
+	log.Printf("[INFO] backendMigrateState: destination backend type %q does not support named workspaces", opts.DestinationType)
 
-	currentEnv, err := m.Workspace()
+	currentWorkspace, err := m.Workspace()
 	if err != nil {
 		return err
 	}
@@ -228,7 +228,7 @@ func (m *Meta) backendMigrateState_S_s(opts *backendMigrateOpts) error {
 				opts.DestinationType),
 			Description: fmt.Sprintf(
 				strings.TrimSpace(inputBackendMigrateMultiToSingle),
-				opts.SourceType, opts.DestinationType, currentEnv),
+				opts.SourceType, opts.DestinationType, currentWorkspace),
 		})
 		if err != nil {
 			return fmt.Errorf(
@@ -241,7 +241,7 @@ func (m *Meta) backendMigrateState_S_s(opts *backendMigrateOpts) error {
 	}
 
 	// Copy the default state
-	opts.sourceWorkspace = currentEnv
+	opts.sourceWorkspace = currentWorkspace
 
 	// now switch back to the default env so we can acccess the new backend
 	m.SetWorkspace(backend.DefaultStateName)
@@ -251,7 +251,7 @@ func (m *Meta) backendMigrateState_S_s(opts *backendMigrateOpts) error {
 
 // Single state to single state, assumed default state name.
 func (m *Meta) backendMigrateState_s_s(opts *backendMigrateOpts) error {
-	log.Printf("[TRACE] backendMigrateState: migrating %q workspace to %q workspace", opts.sourceWorkspace, opts.destinationWorkspace)
+	log.Printf("[INFO] backendMigrateState: single-to-single migrating %q workspace to %q workspace", opts.sourceWorkspace, opts.destinationWorkspace)
 
 	sourceState, err := opts.Source.StateMgr(opts.sourceWorkspace)
 	if err != nil {
@@ -534,7 +534,7 @@ func (m *Meta) backendMigrateTFC(opts *backendMigrateOpts) error {
 	// Everything below, by the above two conditionals, now assumes that the
 	// destination is always Terraform Cloud (TFC).
 
-	sourceSingle := sourceSingleState || (len(sourceWorkspaces) == 1 && sourceWorkspaces[0] == backend.DefaultStateName)
+	sourceSingle := sourceSingleState || (len(sourceWorkspaces) == 1)
 	if sourceSingle {
 		if cloudBackendDestination.WorkspaceMapping.Strategy() == cloud.WorkspaceNameStrategy {
 			// If we know the name via WorkspaceNameStrategy, then set the
@@ -543,6 +543,14 @@ func (m *Meta) backendMigrateTFC(opts *backendMigrateOpts) error {
 			// in TFC if it does not exist.
 			opts.destinationWorkspace = cloudBackendDestination.WorkspaceMapping.Name
 		}
+
+		currentWorkspace, err := m.Workspace()
+		if err != nil {
+			return err
+		}
+		opts.sourceWorkspace = currentWorkspace
+
+		log.Printf("[INFO] backendMigrateTFC: single-to-single migration from source %s to destination %q", opts.sourceWorkspace, opts.destinationWorkspace)
 		// Run normal single-to-single state migration
 		// This will handle both situations where the new cloud backend
 		// configuration is using a workspace.name strategy or workspace.tags
@@ -559,13 +567,14 @@ func (m *Meta) backendMigrateTFC(opts *backendMigrateOpts) error {
 			return err
 		}
 
-		currentEnv, err := m.Workspace()
+		currentWorkspace, err := m.Workspace()
 		if err != nil {
 			return err
 		}
 
-		opts.sourceWorkspace = currentEnv
+		opts.sourceWorkspace = currentWorkspace
 		opts.destinationWorkspace = cloudBackendDestination.WorkspaceMapping.Name
+		log.Printf("[INFO] backendMigrateTFC: multi-to-single migration from source %s to destination %q", opts.sourceWorkspace, opts.destinationWorkspace)
 
 		return m.backendMigrateState_s_s(opts)
 	}
@@ -574,9 +583,13 @@ func (m *Meta) backendMigrateTFC(opts *backendMigrateOpts) error {
 	// workspace over to new one, prompt for workspace name pattern (*),
 	// and start migrating, and create tags for each workspace.
 	if multiSource && destinationTagsStrategy {
+		log.Printf("[INFO] backendMigrateTFC: multi-to-multi migration from source workspaces %q", sourceWorkspaces)
 		return m.backendMigrateState_S_TFC(opts, sourceWorkspaces)
 	}
 
+	// TODO(omar): after the check for sourceSingle is done, everything following
+	// it has to be multi. So rework the code to not need to check for multi, adn
+	// return m.backendMigrateState_S_TFC here.
 	return nil
 }
 
@@ -619,6 +632,7 @@ func (m *Meta) backendMigrateState_S_TFC(opts *backendMigrateOpts, sourceWorkspa
 		opts.force = true
 
 		// Perform the migration
+		log.Printf("[INFO] backendMigrateTFC: multi-to-multi migration, source workspace %q to destination workspace %q", opts.sourceWorkspace, opts.destinationWorkspace)
 		if err := m.backendMigrateState_s_s(opts); err != nil {
 			return fmt.Errorf(strings.TrimSpace(
 				errMigrateMulti), name, opts.SourceType, opts.DestinationType, err)