You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: write_test.go
    path of file: ./repos/vault/command
    
    the code of the file until where you have to start completion: // Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1

package command

import (
	"io"
	"strings"
	"testing"

	"github.com/hashicorp/cli"
	"github.com/hashicorp/vault/api"
)

func testWriteCommand(tb testing.TB) (*cli.MockUi, *WriteCommand) {
	tb.Helper()

	ui := cli.NewMockUi()
	return ui, &WriteCommand{
		BaseCommand: &BaseCommand{
			UI: ui,
		},
	}
}

func TestWriteCommand_Run(t *testing.T) {
	t.Parallel()

	cases := []struct {
		name string
		args []string
		out  string
		code int
	}{
		{
			"not_enough_args",
			[]string{},
			"Not enough arguments",
			1,
		},
		{
			"empty_kvs",
			[]string{"secret/write/foo"},
			"Must supply data or use -force",
			1,
		},
		{
			"force_kvs",
			[]string{"-force", "auth/token/create"},
			"token",
			0,
		},
		{
			"force_f_kvs",
			[]string{"-f", "auth/token/create"},
			"token",
			0,
		},
		{
			"kvs_no_value",
			[]string{"secret/write/foo", "foo"},
			"Failed to parse K=V data",
			1,
		},
		{
			"single_value",
			[]string{"secret/write/foo", "foo=bar"},
			"Success!",
			0,
		},
		{
			"multi_value",
			[]string{"secret/write/foo", "foo=bar", "zip=zap"},
			"Success!",
			0,
		},
		{
			"field",
			[]string{
				"-field", "token_renewable",
				"auth/token/create", "display_name=foo",
			},
			"false",
			0,
		},
		{
			"field_not_found",
			[]string{
				"-field", "not
    
func TestWriteCommand_Run(t *testing.T) {
	t.Parallel()

	cases := []struct {
		name string
		args []string
		out  string
		code int
	}{
		{
			"not_enough_args",
			[]string{},
			"Not enough arguments",
			1,
		},
		{
			"empty_kvs",
			[]string{"secret/write/foo"},
			"Must supply data or use -force",
			1,
		},
		{
			"force_kvs",
			[]string{"-force", "auth/token/create"},
			"token",
			0,
		},
		{
			"force_f_kvs",
			[]string{"-f", "auth/token/create"},
			"token",
			0,
		},
		{
			"kvs_no_value",
			[]string{"secret/write/foo", "foo"},
			"Failed to parse K=V data",
			1,
		},
		{
			"single_value",
			[]string{"secret/write/foo", "foo=bar"},
			"Success!",
			0,
		},
		{
			"multi_value",
			[]string{"secret/write/foo", "foo=bar", "zip=zap"},
			"Success!",
			0,
		},
		{
			"field",
			[]string{
				"-field", "token_renewable",
				"auth/token/create", "display_name=foo",
			},
			"false",
			0,
		},
		{
			"field_not_found",
			[]string{
				"-field", "not-a-real-field",
				"auth/token/create", "display_name=foo",
			},
			"not present in secret",
			1,
		},
	}

	for _, tc := range cases {
		tc := tc

		t.Run(tc.name, func(t *testing.T) {
			t.Parallel()

			client, closer := testVaultServer(t)
			defer closer()

			ui, cmd := testWriteCommand(t)
			cmd.client = client

			code := cmd.Run(tc.args)
			if code != tc.code {
				t.Errorf("expected %d to be %d", code, tc.code)
			}

			combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
			if !strings.Contains(combined, tc.out) {
				t.Errorf("expected %q to contain %q", combined, tc.out)
			}
		})
	}

	// If we ask for a field and get an empty result, do not output "Success!" or anything else
	t.Run("field_from_nothing", func(t *testing.T) {
		t.Parallel()

		client, closer := testVaultServer(t)
		defer closer()

		ui, cmd := testWriteCommand(t)
		cmd.client = client

		code := cmd.Run([]string{
			"-field", "somefield",
			"secret/write/foo", "foo=bar",
		})
		if exp := 0; code != exp {
			t.Fatalf("expected %d to be %d: %q", code, exp, ui.ErrorWriter.String())
		}

		combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
		if combined != "" {
			t.Errorf("expected %q to be empty", combined)
		}
	})

	t.Run("force", func(t *testing.T) {
		t.Parallel()

		client, closer := testVaultServer(t)
		defer closer()

		if err := client.Sys().Mount("transit/", &api.MountInput{
			Type: "transit",
		}); err != nil {
			t.Fatal(err)
		}

		ui, cmd := testWriteCommand(t)
		cmd.client = client

		code := cmd.Run([]string{
			"-force",
			"transit/keys/my-key",
		})
		if exp := 0; code != exp {
			t.Fatalf("expected %d to be %d: %q", code, exp, ui.ErrorWriter.String())
		}

		secret, err := client.Logical().Read("transit/keys/my-key")
		if err != nil {
			t.Fatal(err)
		}
		if secret == nil || secret.Data == nil {
			t.Fatal("expected secret to have data")
		}
	})

	t.Run("stdin_full", func(t *testing.T) {
		t.Parallel()

		client, closer := testVaultServer(t)
		defer closer()

		stdinR, stdinW := io.Pipe()
		go func() {
			stdinW.Write([]byte(`{"foo":"bar"}`))
			stdinW.Close()
		}()

		_, cmd := testWriteCommand(t)
		cmd.client = client
		cmd.testStdin = stdinR

		code := cmd.Run([]string{
			"secret/write/stdin_full", "-",
		})
		if code != 0 {
			t.Fatalf("expected 0 to be %d", code)
		}

		secret, err := client.Logical().Read("secret/write/stdin_full")
		if err != nil {
			t.Fatal(err)
		}
		if secret == nil || secret.Data == nil {
			t.Fatal("expected secret to have data")
		}
		if exp, act := "bar", secret.Data["foo"].(string); exp != act {
			t.Errorf("expected %q to be %q", act, exp)
		}
	})

	t.Run("stdin_value", func(t *testing.T) {
		t.Parallel()

		client, closer := testVaultServer(t)
		defer closer()

		stdinR, stdinW := io.Pipe()
		go func() {
			stdinW.Write([]byte("bar"))
			stdinW.Close()
		}()

		_, cmd := testWriteCommand(t)
		cmd.client = client
		cmd.testStdin = stdinR

		code := cmd.Run([]string{
			"secret/write/stdin_value", "foo=-",
		})
		if code != 0 {
			t.Fatalf("expected 0 to be %d", code)
		}

		secret, err := client.Logical().Read("secret/write/stdin_value")
		if err != nil {
			t.Fatal(err)
		}
		if secret == nil || secret.Data == nil {
			t.Fatal("expected secret to have data")
		}
		if exp, act := "bar", secret.Data["foo"].(string); exp != act {
			t.Errorf("expected %q to be %q", act, exp)
		}
	})

	t.Run("integration", func(t *testing.T) {
		t.Parallel()

		client, closer := testVaultServer(t)
		defer closer()

		_, cmd := testWriteCommand(t)
		cmd.client = client

		code := cmd.Run([]string{
			"secret/write/integration", "foo=bar", "zip=zap",
		})
		if code != 0 {
			t.Fatalf("expected 0 to be %d", code)
		}

		secret, err := client.Logical().Read("secret/write/integration")
		if err != nil {
			t.Fatal(err)
		}
		if secret == nil || secret.Data == nil {
			t.Fatal("expected secret to have data")
		}
		if exp, act := "bar", secret.Data["foo"].(string); exp != act {
			t.Errorf("expected %q to be %q", act, exp)
		}
		if exp, act := "zap", secret.Data["zip"].(string); exp != act {
			t.Errorf("expected %q to be %q", act, exp)
		}
	})

	t.Run("communication_failure", func(t *testing.T) {
		t.Parallel()

		client, closer := testVaultServerBad(t)
		defer closer()

		ui, cmd := testWriteCommand(t)
		cmd.client = client

		code := cmd.Run([]string{
			"foo/bar", "a=b",
		})
		if exp := 2; code != exp {
			t.Errorf("expected %d to be %d", code, exp)
		}

		expected := "Error writing data to foo/bar: "
		combined := ui.OutputWriter.String() + ui.ErrorWriter.String()
		if !strings.Contains(combined, expected) {
			t.Errorf("expected %q to contain %q", combined, expected)
		}
	})

	t.Run("no_tabs", func(t *testing.T) {
		t.Parallel()

		_, cmd := testWriteCommand(t)
		assertNoTabs(t, cmd)
	})
}