{[]byte("012345678901234"), true, nil},
		{nil, false, nil},
		{[]byte("012345678901234"), true, nil},
		{nil, false, nil},
		{nil, false, io.EOF},
	}},
	{"0123456789012345\r012345678901234\r", []readLineResult{
		{[]byte("0123456789012345"), true, nil},
		{[]byte("\r012345678901234"), true, nil},
		{[]byte("\r"), false, nil},
		{nil, false, io.EOF},
	}},
}

	var ok bool
	testOut = new(strings.Builder) // The assembler writes test output to this buffer.
	ctxt.Bso = bufio.NewWriter(os.Stdout)
	ctxt.IsAsm = true
	defer ctxt.Bso.Flush()
	failed := false
	ctxt.DiagFunc = func(format string, args ...interface{}) {
		failed = true
		t.Errorf(format, args...)
	}
	pList.Firstpc, ok = parser.Parse()
	if !ok || failed {
		t.Errorf("asm: %s assembly failed", goarch)
		return
	}

// TestWriterComment is test for EOCD comment read/write.
func TestWriterComment(t *testing.T) {
	var tests = []struct {
		comment string
		ok      bool
	}{
		{"hi, hello", true},
		{"hi, こんにちわ", true},
		{strings.Repeat("a", uint16max), true},
		{strings.Repeat("a", uint16max+1), false},
	}

	for _, test := range tests {
		// write a zip file
		buf := new(bytes.Buffer)
		w := NewWriter(buf)

}

// tryParse executes parse func in panicOnError=true context.
// parse is expected to call any parsing methods that may panic.
// Returns error gathered from recover; nil if no parse errors occurred.
//
// For unexpected panics, calls t.Fatal.
func tryParse(t *testing.T, parse func()) (err error) {
	panicOnError = true
	defer func() {
		panicOnError = false

		e := recover()
		var ok bool

		in   string
		want map[string]string
		ok   bool
	}{
		{"", nil, true},
		{"6 k=1\n", map[string]string{"k": "1"}, true},
		{"10 a=name\n", map[string]string{"a": "name"}, true},
		{"9 a=name\n", map[string]string{"a": "name"}, true},
		{"30 mtime=1350244992.023960108\n", map[string]string{"mtime": "1350244992.023960108"}, true},
		{"3 somelongkey=\n", nil, false},
		{"50 tooshort=\n", nil, false},

	// Operand 1 is a symbol name in the form foo(SB).
	nameAddr := p.address(operands[1])
	if !p.validSymbol("FUNCDATA", &nameAddr, true) {
		return
	}

	prog := &obj.Prog{
		Ctxt: p.ctxt,
		As:   obj.AFUNCDATA,
		Pos:  p.pos(),
		From: valueAddr,
		To:   nameAddr,
	}
	p.append(prog, "", true)
}

// asmJump assembles a jump instruction.
// JMP	R1
// JMP	exit
// JMP	3(PC)

		switch decl := decl.(type) {
		case *ast.GenDecl:
			for _, spec := range decl.Specs {
				s, ok := spec.(*ast.ImportSpec)
				if !ok || s.Path.Value != `"C"` {
					continue
				}
				sawC = true
				if s.Name != nil {
					error_(s.Path.Pos(), `cannot rename import "C"`)
				}
				cg := s.Doc
				if cg == nil && len(decl.Specs) == 1 {
					cg = decl.Doc
				}
				if cg != nil {

					break
				}
				// Fall through in the unlikely case
				// that filter at some point is
				// "Pid:\t".
			}
			if strings.HasPrefix(line, filter) {
				if line == expected {
					foundAThread = true
					break
				}
				if filter == "Groups:" && strings.HasPrefix(line, "Groups:\t") {
					// https://github.com/golang/go/issues/46145

determined by how the memory was allocated; it has nothing to do with
the type of the pointer.

Note that values of some Go types, other than the type's zero value,
always include Go pointers. This is true of string, slice, interface,
channel, map, and function types. A pointer type may hold a Go pointer
or a C pointer. Array and struct types may or may not include Go
pointers, depending on the element types. All the discussion below

	// Confirm that when Reader panics, the empty buffer remains empty
	var buf2 Buffer
	defer func() {
		recover()
		check(t, "TestReadFromPanicReader (2)", &buf2, "")
	}()
	buf2.ReadFrom(panicReader{panic: true})
}

func TestReadFromNegativeReader(t *testing.T) {
	var b Buffer
	defer func() {
		switch err := recover().(type) {
		case nil:
			t.Fatal("bytes.Buffer.ReadFrom didn't panic")
		case error: