diff options
Diffstat (limited to 'gcc-4.8.1/libgo/go/io/io_test.go')
-rw-r--r-- | gcc-4.8.1/libgo/go/io/io_test.go | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/gcc-4.8.1/libgo/go/io/io_test.go b/gcc-4.8.1/libgo/go/io/io_test.go deleted file mode 100644 index f3ec050fa..000000000 --- a/gcc-4.8.1/libgo/go/io/io_test.go +++ /dev/null @@ -1,237 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package io_test - -import ( - "bytes" - . "io" - "strings" - "testing" -) - -// An version of bytes.Buffer without ReadFrom and WriteTo -type Buffer struct { - bytes.Buffer - ReaderFrom // conflicts with and hides bytes.Buffer's ReaderFrom. - WriterTo // conflicts with and hides bytes.Buffer's WriterTo. -} - -// Simple tests, primarily to verify the ReadFrom and WriteTo callouts inside Copy and CopyN. - -func TestCopy(t *testing.T) { - rb := new(Buffer) - wb := new(Buffer) - rb.WriteString("hello, world.") - Copy(wb, rb) - if wb.String() != "hello, world." { - t.Errorf("Copy did not work properly") - } -} - -func TestCopyReadFrom(t *testing.T) { - rb := new(Buffer) - wb := new(bytes.Buffer) // implements ReadFrom. - rb.WriteString("hello, world.") - Copy(wb, rb) - if wb.String() != "hello, world." { - t.Errorf("Copy did not work properly") - } -} - -func TestCopyWriteTo(t *testing.T) { - rb := new(bytes.Buffer) // implements WriteTo. - wb := new(Buffer) - rb.WriteString("hello, world.") - Copy(wb, rb) - if wb.String() != "hello, world." { - t.Errorf("Copy did not work properly") - } -} - -func TestCopyN(t *testing.T) { - rb := new(Buffer) - wb := new(Buffer) - rb.WriteString("hello, world.") - CopyN(wb, rb, 5) - if wb.String() != "hello" { - t.Errorf("CopyN did not work properly") - } -} - -func TestCopyNReadFrom(t *testing.T) { - rb := new(Buffer) - wb := new(bytes.Buffer) // implements ReadFrom. - rb.WriteString("hello") - CopyN(wb, rb, 5) - if wb.String() != "hello" { - t.Errorf("CopyN did not work properly") - } -} - -func TestCopyNWriteTo(t *testing.T) { - rb := new(bytes.Buffer) // implements WriteTo. - wb := new(Buffer) - rb.WriteString("hello, world.") - CopyN(wb, rb, 5) - if wb.String() != "hello" { - t.Errorf("CopyN did not work properly") - } -} - -type noReadFrom struct { - w Writer -} - -func (w *noReadFrom) Write(p []byte) (n int, err error) { - return w.w.Write(p) -} - -func TestCopyNEOF(t *testing.T) { - // Test that EOF behavior is the same regardless of whether - // argument to CopyN has ReadFrom. - - b := new(bytes.Buffer) - - n, err := CopyN(&noReadFrom{b}, strings.NewReader("foo"), 3) - if n != 3 || err != nil { - t.Errorf("CopyN(noReadFrom, foo, 3) = %d, %v; want 3, nil", n, err) - } - - n, err = CopyN(&noReadFrom{b}, strings.NewReader("foo"), 4) - if n != 3 || err != EOF { - t.Errorf("CopyN(noReadFrom, foo, 4) = %d, %v; want 3, EOF", n, err) - } - - n, err = CopyN(b, strings.NewReader("foo"), 3) // b has read from - if n != 3 || err != nil { - t.Errorf("CopyN(bytes.Buffer, foo, 3) = %d, %v; want 3, nil", n, err) - } - - n, err = CopyN(b, strings.NewReader("foo"), 4) // b has read from - if n != 3 || err != EOF { - t.Errorf("CopyN(bytes.Buffer, foo, 4) = %d, %v; want 3, EOF", n, err) - } -} - -func TestReadAtLeast(t *testing.T) { - var rb bytes.Buffer - testReadAtLeast(t, &rb) -} - -// A version of bytes.Buffer that returns n > 0, EOF on Read -// when the input is exhausted. -type dataAndEOFBuffer struct { - bytes.Buffer -} - -func (r *dataAndEOFBuffer) Read(p []byte) (n int, err error) { - n, err = r.Buffer.Read(p) - if n > 0 && r.Buffer.Len() == 0 && err == nil { - err = EOF - } - return -} - -func TestReadAtLeastWithDataAndEOF(t *testing.T) { - var rb dataAndEOFBuffer - testReadAtLeast(t, &rb) -} - -func testReadAtLeast(t *testing.T, rb ReadWriter) { - rb.Write([]byte("0123")) - buf := make([]byte, 2) - n, err := ReadAtLeast(rb, buf, 2) - if err != nil { - t.Error(err) - } - n, err = ReadAtLeast(rb, buf, 4) - if err != ErrShortBuffer { - t.Errorf("expected ErrShortBuffer got %v", err) - } - if n != 0 { - t.Errorf("expected to have read 0 bytes, got %v", n) - } - n, err = ReadAtLeast(rb, buf, 1) - if err != nil { - t.Error(err) - } - if n != 2 { - t.Errorf("expected to have read 2 bytes, got %v", n) - } - n, err = ReadAtLeast(rb, buf, 2) - if err != EOF { - t.Errorf("expected EOF, got %v", err) - } - if n != 0 { - t.Errorf("expected to have read 0 bytes, got %v", n) - } - rb.Write([]byte("4")) - n, err = ReadAtLeast(rb, buf, 2) - if err != ErrUnexpectedEOF { - t.Errorf("expected ErrUnexpectedEOF, got %v", err) - } - if n != 1 { - t.Errorf("expected to have read 1 bytes, got %v", n) - } -} - -func TestTeeReader(t *testing.T) { - src := []byte("hello, world") - dst := make([]byte, len(src)) - rb := bytes.NewBuffer(src) - wb := new(bytes.Buffer) - r := TeeReader(rb, wb) - if n, err := ReadFull(r, dst); err != nil || n != len(src) { - t.Fatalf("ReadFull(r, dst) = %d, %v; want %d, nil", n, err, len(src)) - } - if !bytes.Equal(dst, src) { - t.Errorf("bytes read = %q want %q", dst, src) - } - if !bytes.Equal(wb.Bytes(), src) { - t.Errorf("bytes written = %q want %q", wb.Bytes(), src) - } - if n, err := r.Read(dst); n != 0 || err != EOF { - t.Errorf("r.Read at EOF = %d, %v want 0, EOF", n, err) - } - rb = bytes.NewBuffer(src) - pr, pw := Pipe() - pr.Close() - r = TeeReader(rb, pw) - if n, err := ReadFull(r, dst); n != 0 || err != ErrClosedPipe { - t.Errorf("closed tee: ReadFull(r, dst) = %d, %v; want 0, EPIPE", n, err) - } -} - -func TestSectionReader_ReadAt(tst *testing.T) { - dat := "a long sample data, 1234567890" - tests := []struct { - data string - off int - n int - bufLen int - at int - exp string - err error - }{ - {data: "", off: 0, n: 10, bufLen: 2, at: 0, exp: "", err: EOF}, - {data: dat, off: 0, n: len(dat), bufLen: 0, at: 0, exp: "", err: nil}, - {data: dat, off: len(dat), n: 1, bufLen: 1, at: 0, exp: "", err: EOF}, - {data: dat, off: 0, n: len(dat) + 2, bufLen: len(dat), at: 0, exp: dat, err: nil}, - {data: dat, off: 0, n: len(dat), bufLen: len(dat) / 2, at: 0, exp: dat[:len(dat)/2], err: nil}, - {data: dat, off: 0, n: len(dat), bufLen: len(dat), at: 0, exp: dat, err: nil}, - {data: dat, off: 0, n: len(dat), bufLen: len(dat) / 2, at: 2, exp: dat[2 : 2+len(dat)/2], err: nil}, - {data: dat, off: 3, n: len(dat), bufLen: len(dat) / 2, at: 2, exp: dat[5 : 5+len(dat)/2], err: nil}, - {data: dat, off: 3, n: len(dat) / 2, bufLen: len(dat)/2 - 2, at: 2, exp: dat[5 : 5+len(dat)/2-2], err: nil}, - {data: dat, off: 3, n: len(dat) / 2, bufLen: len(dat)/2 + 2, at: 2, exp: dat[5 : 5+len(dat)/2-2], err: EOF}, - } - for i, t := range tests { - r := strings.NewReader(t.data) - s := NewSectionReader(r, int64(t.off), int64(t.n)) - buf := make([]byte, t.bufLen) - if n, err := s.ReadAt(buf, int64(t.at)); n != len(t.exp) || string(buf[:n]) != t.exp || err != t.err { - tst.Fatalf("%d: ReadAt(%d) = %q, %v; expected %q, %v", i, t.at, buf[:n], err, t.exp, t.err) - } - } -} |