From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001
From: upstream source tree <ports@midipix.org>
Date: Sun, 15 Mar 2015 20:14:05 -0400
Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified
 gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream
 tarball.

downloading a git-generated archive based on the 'upstream' tag
should provide you with a source tree that is binary identical
to the one extracted from the above tarball.

if you have obtained the source via the command 'git clone',
however, do note that line-endings of files in your working
directory might differ from line-endings of the respective
files in the upstream repository.
---
 libgo/go/io/io_test.go | 156 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 156 insertions(+)
 create mode 100644 libgo/go/io/io_test.go

(limited to 'libgo/go/io/io_test.go')

diff --git a/libgo/go/io/io_test.go b/libgo/go/io/io_test.go
new file mode 100644
index 000000000..4fcd85e69
--- /dev/null
+++ b/libgo/go/io/io_test.go
@@ -0,0 +1,156 @@
+// 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"
+	"os"
+	"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 os.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 != os.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 != os.EOF {
+		t.Errorf("Copyn(bytes.Buffer, foo, 4) = %d, %v; want 3, EOF", n, err)
+	}
+}
+
+func TestReadAtLeast(t *testing.T) {
+	var rb bytes.Buffer
+	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 != os.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)
+	}
+}
-- 
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