func TestCoreWithSeal(t *testing.T, testSeal Seal) *Core {
	noopAudits := map[string]audit.Factory{
		"noop": func(config *audit.BackendConfig) (audit.Backend, error) {
			view := &logical.InmemStorage{}
			view.Put(&logical.StorageEntry{
				Key:   "salt",
				Value: []byte("foo"),
			})
			var err error
			config.Salt, err = salt.NewSalt(view, &salt.Config{
				HMAC:     sha256.New,
				HMACType: "hmac-sha256",
			})
			if err != nil {
				t.Fatalf("error getting new salt: %v", err)
			}
			return &noopAudit{
				Config: config,
			}, nil
		},
	}
	noopBackends := make(map[string]logical.Factory)
	noopBackends["noop"] = func(config *logical.BackendConfig) (logical.Backend, error) {
		b := new(framework.Backend)
		b.Setup(config)
		return b, nil
	}
	noopBackends["http"] = func(config *logical.BackendConfig) (logical.Backend, error) {
		return new(rawHTTP), nil
	}
	logicalBackends := make(map[string]logical.Factory)
	for backendName, backendFactory := range noopBackends {
		logicalBackends[backendName] = backendFactory
	}
	logicalBackends["generic"] = LeasedPassthroughBackendFactory
	for backendName, backendFactory := range testLogicalBackends {
		logicalBackends[backendName] = backendFactory
	}
	logger := logformat.NewVaultLogger(log.LevelTrace)
	physicalBackend := physical.NewInmem(logger)
	conf := &CoreConfig{
		Physical:           physicalBackend,
		AuditBackends:      noopAudits,
		LogicalBackends:    logicalBackends,
		CredentialBackends: noopBackends,
		DisableMlock:       true,
		Logger:             logger,
	}
	if testSeal != nil {
		conf.Seal = testSeal
	}
	c, err := NewCore(conf)
	if err != nil {
		t.Fatalf("err: %s", err)
	}
	return c
}
TestCoreWithSeal returns a pure in-memory, uninitialized core with the
specified seal for testing.
package vault
import (
	"bytes"
	"crypto/rand"
	"crypto/sha256"
	"crypto/tls"
	"crypto/x509"
	"encoding/pem"
	"fmt"
	"net"
	"net/http"
	"os/exec"
	"testing"
	"time"
	log "github.com/mgutz/logxi/v1"
	"golang.org/x/crypto/ssh"
	"github.com/hashicorp/go-uuid"
	"github.com/hashicorp/vault/audit"
	"github.com/hashicorp/vault/helper/logformat"
	"github.com/hashicorp/vault/helper/salt"
	"github.com/hashicorp/vault/logical"
	"github.com/hashicorp/vault/logical/framework"
	"github.com/hashicorp/vault/physical"
)
const (
	testSharedPublicKey = `
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9i+hFxZHGo6KblVme4zrAcJstR6I0PTJozW286X4WyvPnkMYDQ5mnhEYC7UWCvjoTWbPEXPX7NjhRtwQTGD67bV+lrxgfyzK1JZbUXK4PwgKJvQD+XyyWYMzDgGSQY61KUSqCxymSm/9NZkPU3ElaQ9xQuTzPpztM4ROfb8f2Yv6/ZESZsTo0MTAkp8Pcy+WkioI/uJ1H7zqs0EA4OMY4aDJRu0UtP4rTVeYNEAuRXdX+eH4aW3KMvhzpFTjMbaJHJXlEeUm2SaX5TNQyTOvghCeQILfYIL/Ca2ij8iwCmulwdV6eQGfd4VDu40PvSnmfoaE38o6HaPnX0kUcnKiT
`
	testSharedPrivateKey = `
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
`
)
func TestCore(t *testing.T) *Core {
	return TestCoreWithSeal(t, nil)
}