Add Go frontend, libgo library, and Go testsuite.
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
This commit is contained in:
Ian Lance Taylor
parent
1aa6700378
commit
7a9389330e
1565 changed files with 351565 additions and 12 deletions
274
libgo/go/archive/tar/reader_test.go
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274
libgo/go/archive/tar/reader_test.go
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package tar
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import (
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"bytes"
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"crypto/md5"
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"fmt"
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"io"
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"os"
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"reflect"
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"testing"
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)
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type untarTest struct {
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file string
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headers []*Header
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cksums []string
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}
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var gnuTarTest = &untarTest{
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file: "testdata/gnu.tar",
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headers: []*Header{
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&Header{
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Name: "small.txt",
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Mode: 0640,
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Uid: 73025,
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Gid: 5000,
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Size: 5,
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Mtime: 1244428340,
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Typeflag: '0',
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Uname: "dsymonds",
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Gname: "eng",
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},
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&Header{
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Name: "small2.txt",
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Mode: 0640,
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Uid: 73025,
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Gid: 5000,
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Size: 11,
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Mtime: 1244436044,
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Typeflag: '0',
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Uname: "dsymonds",
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Gname: "eng",
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},
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},
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cksums: []string{
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"e38b27eaccb4391bdec553a7f3ae6b2f",
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"c65bd2e50a56a2138bf1716f2fd56fe9",
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},
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}
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var untarTests = []*untarTest{
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gnuTarTest,
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&untarTest{
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file: "testdata/star.tar",
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headers: []*Header{
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&Header{
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Name: "small.txt",
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Mode: 0640,
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Uid: 73025,
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Gid: 5000,
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Size: 5,
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Mtime: 1244592783,
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Typeflag: '0',
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Uname: "dsymonds",
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Gname: "eng",
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Atime: 1244592783,
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Ctime: 1244592783,
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},
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&Header{
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Name: "small2.txt",
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Mode: 0640,
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Uid: 73025,
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Gid: 5000,
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Size: 11,
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Mtime: 1244592783,
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Typeflag: '0',
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Uname: "dsymonds",
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Gname: "eng",
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Atime: 1244592783,
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Ctime: 1244592783,
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},
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},
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},
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&untarTest{
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file: "testdata/v7.tar",
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headers: []*Header{
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&Header{
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Name: "small.txt",
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Mode: 0444,
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Uid: 73025,
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Gid: 5000,
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Size: 5,
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Mtime: 1244593104,
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Typeflag: '\x00',
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},
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&Header{
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Name: "small2.txt",
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Mode: 0444,
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Uid: 73025,
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Gid: 5000,
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Size: 11,
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Mtime: 1244593104,
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Typeflag: '\x00',
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},
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},
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},
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}
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func TestReader(t *testing.T) {
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testLoop:
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for i, test := range untarTests {
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f, err := os.Open(test.file, os.O_RDONLY, 0444)
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if err != nil {
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t.Errorf("test %d: Unexpected error: %v", i, err)
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continue
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}
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tr := NewReader(f)
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for j, header := range test.headers {
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hdr, err := tr.Next()
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if err != nil || hdr == nil {
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t.Errorf("test %d, entry %d: Didn't get entry: %v", i, j, err)
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f.Close()
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continue testLoop
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}
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if !reflect.DeepEqual(hdr, header) {
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t.Errorf("test %d, entry %d: Incorrect header:\nhave %+v\nwant %+v",
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i, j, *hdr, *header)
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}
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}
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hdr, err := tr.Next()
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if err == os.EOF {
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break
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}
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if hdr != nil || err != nil {
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t.Errorf("test %d: Unexpected entry or error: hdr=%v err=%v", i, err)
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}
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f.Close()
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}
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}
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func TestPartialRead(t *testing.T) {
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f, err := os.Open("testdata/gnu.tar", os.O_RDONLY, 0444)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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defer f.Close()
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tr := NewReader(f)
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// Read the first four bytes; Next() should skip the last byte.
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hdr, err := tr.Next()
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if err != nil || hdr == nil {
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t.Fatalf("Didn't get first file: %v", err)
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}
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buf := make([]byte, 4)
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if _, err := io.ReadFull(tr, buf); err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if expected := []byte("Kilt"); !bytes.Equal(buf, expected) {
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t.Errorf("Contents = %v, want %v", buf, expected)
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}
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// Second file
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hdr, err = tr.Next()
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if err != nil || hdr == nil {
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t.Fatalf("Didn't get second file: %v", err)
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}
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buf = make([]byte, 6)
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if _, err := io.ReadFull(tr, buf); err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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if expected := []byte("Google"); !bytes.Equal(buf, expected) {
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t.Errorf("Contents = %v, want %v", buf, expected)
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}
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}
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func TestIncrementalRead(t *testing.T) {
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test := gnuTarTest
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f, err := os.Open(test.file, os.O_RDONLY, 0444)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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defer f.Close()
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tr := NewReader(f)
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headers := test.headers
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cksums := test.cksums
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nread := 0
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// loop over all files
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for ; ; nread++ {
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hdr, err := tr.Next()
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if hdr == nil || err == os.EOF {
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break
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}
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// check the header
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if !reflect.DeepEqual(hdr, headers[nread]) {
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t.Errorf("Incorrect header:\nhave %+v\nwant %+v",
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*hdr, headers[nread])
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}
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// read file contents in little chunks EOF,
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// checksumming all the way
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h := md5.New()
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rdbuf := make([]uint8, 8)
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for {
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nr, err := tr.Read(rdbuf)
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if err == os.EOF {
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break
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}
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if err != nil {
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t.Errorf("Read: unexpected error %v\n", err)
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break
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}
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h.Write(rdbuf[0:nr])
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}
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// verify checksum
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have := fmt.Sprintf("%x", h.Sum())
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want := cksums[nread]
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if want != have {
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t.Errorf("Bad checksum on file %s:\nhave %+v\nwant %+v", hdr.Name, have, want)
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}
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}
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if nread != len(headers) {
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t.Errorf("Didn't process all files\nexpected: %d\nprocessed %d\n", len(headers), nread)
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}
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}
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func TestNonSeekable(t *testing.T) {
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test := gnuTarTest
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f, err := os.Open(test.file, os.O_RDONLY, 0444)
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if err != nil {
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t.Fatalf("Unexpected error: %v", err)
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}
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defer f.Close()
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// pipe the data in
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r, w, err := os.Pipe()
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if err != nil {
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t.Fatalf("Unexpected error %s", err)
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}
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go func() {
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rdbuf := make([]uint8, 1<<16)
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for {
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nr, err := f.Read(rdbuf)
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w.Write(rdbuf[0:nr])
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if err == os.EOF {
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break
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}
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}
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w.Close()
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}()
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tr := NewReader(r)
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nread := 0
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for ; ; nread++ {
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hdr, err := tr.Next()
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if hdr == nil || err == os.EOF {
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break
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}
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}
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if nread != len(test.headers) {
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t.Errorf("Didn't process all files\nexpected: %d\nprocessed %d\n", len(test.headers), nread)
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}
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}
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