// TB is the interface common to T and B.
type TB interface {
    Cleanup(func())
    Error(args ...interface{})
    Errorf(format string, args ...interface{})
    Fail()
    FailNow()
    Failed() bool
    Fatal(args ...interface{})
    Fatalf(format string, args ...interface{})
    Helper()
    Log(args ...interface{})
    Logf(format string, args ...interface{})
    Name() string
    Skip(args ...interface{})
    SkipNow()
    Skipf(format string, args ...interface{})
    Skipped() bool
    TempDir() string
    
    // A private method to prevent users implementing the
    // interface and so future additions to it will not
    // violate Go 1 compatibility.
    private()
}

type T struct {
    common
    isParallel bool
    context    *testContext // For running tests and subtests.
}

var _ TB = (*T)(nil)

package greetings

import (
    "testing"
    "regexp"
)

// TestHelloName calls greetings.Hello with a name, checking
// for a valid return value.
func TestHelloName(t *testing.T) {
    name := "Gladys"
    want := regexp.MustCompile(`\b`+name+`\b`)
    msg, err := Hello("Gladys")
    if !want.MatchString(msg) || err != nil {
        t.Fatalf(`Hello("Gladys") = %q, %v, want match for %#q, nil`, msg, err, want)
    }
}

// TestHelloEmpty calls greetings.Hello with an empty string,
// checking for an error.
func TestHelloEmpty(t *testing.T) {
    msg, err := Hello("")
    if msg != "" || err == nil {
        t.Fatalf(`Hello("") = %q, %v, want "", error`, msg, err)
    }
}

func TestRoundtripStringTag(t *testing.T) {
	tests := []struct {
		name string
		in   StringTag
		want string // empty to just test that we roundtrip
	}{
		{
			name: "AllTypes",
			in: StringTag{
				BoolStr:    true,
				IntStr:     42,
				UintptrStr: 44,
				StrStr:     "xzbit",
				NumberStr:  "46",
			},
			want: `{
				"BoolStr": "true",
				"IntStr": "42",
				"UintptrStr": "44",
				"StrStr": "\"xzbit\"",
				"NumberStr": "46"
			}`,
		},
		{
			// See golang.org/issues/38173.
			name: "StringDoubleEscapes",
			in: StringTag{
				StrStr:    "\b\f\n\r\t\"\\",
				NumberStr: "0", // just to satisfy the roundtrip
			},
			want: `{
				"BoolStr": "false",
				"IntStr": "0",
				"UintptrStr": "0",
				"StrStr": "\"\\u0008\\u000c\\n\\r\\t\\\"\\\\\"",
				"NumberStr": "0"
			}`,
		},
	}
	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			// Indent with a tab prefix to make the multi-line string
			// literals in the table nicer to read.
			got, err := MarshalIndent(&test.in, "\t\t\t", "\t")
			if err != nil {
				t.Fatal(err)
			}
			if got := string(got); got != test.want {
				t.Fatalf(" got: %s\nwant: %s\n", got, test.want)
			}

			// Verify that it round-trips.
			var s2 StringTag
			if err := Unmarshal(got, &s2); err != nil {
				t.Fatalf("Decode: %v", err)
			}
			if !reflect.DeepEqual(test.in, s2) {
				t.Fatalf("decode didn't match.\nsource: %#v\nEncoded as:\n%s\ndecode: %#v", test.in, string(got), s2)
			}
		})
	}
}

type zeroErrReader struct {
	err error
}

func (r zeroErrReader) Read(p []byte) (int, error) {
	return copy(p, []byte{0}), r.err
}

type errWriter struct {
	err error
}

func (w errWriter) Write([]byte) (int, error) {
	return 0, w.err
}

// In case a Read results in an error with non-zero bytes read, and
// the subsequent Write also results in an error, the error from Write
// is returned, as it is the one that prevented progressing further.
func TestCopyReadErrWriteErr(t *testing.T) {
	er, ew := errors.New("readError"), errors.New("writeError")
	r, w := zeroErrReader{err: er}, errWriter{err: ew}
	n, err := Copy(w, r)
	if n != 0 || err != ew {
		t.Errorf("Copy(zeroErrReader, errWriter) = %d, %v; want 0, writeError", n, err)
	}
}

func TestMain(m *testing.M) {
	setupTestData()
	installTestHooks()

	st := m.Run()

	testHookUninstaller.Do(uninstallTestHooks)
	if testing.Verbose() {
		printRunningGoroutines()
		printInflightSockets()
		printSocketStats()
	}
	forceCloseSockets()
	os.Exit(st)
}

func setup() {
    fmt.Printf("Setup")
}

func teardown() {
    fmt.Printf("Teardown")
}

func TestMain(m *testing.M) {
    setup()
    code := m.Run()
    teardown()
    os.Exit(code)
}