func newCLITest() cliTest {
	// Reset the client context for each test. We don't reset the
	// pointer (because they are tied into the flags), but instead
	// overwrite the existing struct's values.
	*Context = *server.NewContext()

	osExit = func(int) {}
	osStderr = os.Stdout

	s := &server.TestServer{}
	if err := s.Start(); err != nil {
		log.Fatalf("Could not start server: %v", err)
	}

	return cliTest{TestServer: s}
}

	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/cockroachdb/cockroach/security"
	"github.com/cockroachdb/cockroach/server"
	"github.com/cockroachdb/cockroach/storage/engine"
	"github.com/cockroachdb/cockroach/util"
	"github.com/cockroachdb/cockroach/util/log"

	"github.com/spf13/cobra"
)

// Context is the CLI Context used for the server.
var Context = server.NewContext()

// An initCmd command initializes a new Cockroach cluster.
var initCmd = &cobra.Command{
	Use:   "init --stores=...",
	Short: "init new Cockroach cluster and start server",
	Long: `
Initialize a new Cockroach cluster using the --stores flag to specify one or
more storage locations. The first of these storage locations is used to
bootstrap the first replica of the first range. If any of the storage locations
are already part of a pre-existing cluster, the bootstrap will fail.
`,
	Example: `  cockroach init --stores=ssd=/mnt/ssd1,ssd=/mnt/ssd2`,
	Run:     runInit,
}

// This is a fairly high-level test of CA and node certificates.
// We construct SSL server and clients and use the generated certs.
func TestUseCerts(t *testing.T) {
	defer leaktest.AfterTest(t)
	// Do not mock cert access for this test.
	security.ResetReadFileFn()
	defer ResetTest()
	certsDir := util.CreateTempDir(t, "certs_test")
	defer util.CleanupDir(certsDir)

	err := security.RunCreateCACert(certsDir, 512)
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}

	err = security.RunCreateNodeCert(certsDir, 512, []string{"127.0.0.1"})
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}

	err = security.RunCreateClientCert(certsDir, 512, security.RootUser)
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}

	// Load TLS Configs. This is what TestServer and HTTPClient do internally.
	_, err = security.LoadServerTLSConfig(certsDir, "node")
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}
	_, err = security.LoadClientTLSConfig(certsDir, security.NodeUser)
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}

	// Start a test server and override certs.
	// We use a real context since we want generated certs.
	testCtx := server.NewContext()
	testCtx.Certs = certsDir
	testCtx.User = security.NodeUser
	testCtx.Addr = "127.0.0.1:0"
	testCtx.PGAddr = "127.0.0.1:0"
	s := &server.TestServer{Ctx: testCtx}
	if err := s.Start(); err != nil {
		t.Fatal(err)
	}
	defer s.Stop()

	// Insecure mode.
	clientContext := testutils.NewNodeTestBaseContext()
	clientContext.Insecure = true
	httpClient, err := clientContext.GetHTTPClient()
	if err != nil {
		t.Fatal(err)
	}
	req, err := http.NewRequest("GET", "https://"+s.ServingAddr()+"/_admin/health", nil)
	if err != nil {
		t.Fatalf("could not create request: %v", err)
	}
	resp, err := httpClient.Do(req)
	if err == nil {
		resp.Body.Close()
		t.Fatalf("Expected SSL error, got success")
	}

	// Secure mode but no Certs directory: permissive config.
	clientContext = testutils.NewNodeTestBaseContext()
	clientContext.Certs = ""
	httpClient, err = clientContext.GetHTTPClient()
	if err != nil {
		t.Fatal(err)
	}
	// Endpoint that does not enforce client auth (see: server/authentication_test.go)
	req, err = http.NewRequest("GET", "https://"+s.ServingAddr()+"/_admin/health", nil)
	if err != nil {
		t.Fatalf("could not create request: %v", err)
	}
	resp, err = httpClient.Do(req)
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}
	resp.Body.Close()
	if resp.StatusCode != http.StatusOK {
		t.Fatalf("Expected OK, got: %d", resp.StatusCode)
	}

	// Endpoint that enforces client auth (see: server/authentication_test.go)
	req, err = http.NewRequest("GET", "https://"+s.ServingAddr()+driver.Endpoint, nil)
	if err != nil {
		t.Fatalf("could not create request: %v", err)
	}
	resp, err = httpClient.Do(req)
	if err != nil {
		t.Fatalf("Expected success, got %v", err)
	}
	resp.Body.Close()
	if resp.StatusCode != http.StatusUnauthorized {
		t.Fatalf("Expected status code %d, got: %d", http.StatusUnauthorized, resp.StatusCode)
	}

//.........这里部分代码省略.........