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authorRob Pike <r@golang.org>2009-06-09 09:53:44 -0700
committerRob Pike <r@golang.org>2009-06-09 09:53:44 -0700
commit7249ea4df2b4f12a4e7ed446f270cea87e4ffd34 (patch)
tree7032a11d0cac2ae4d3e90f7a189b575b5a50f848 /src/lib/io/pipe_test.go
parentacf6ef7a82b3fe61516a1bac4563706552bdf078 (diff)
downloadgolang-7249ea4df2b4f12a4e7ed446f270cea87e4ffd34.tar.gz
mv src/lib to src/pkg
tests: all.bash passes, gobuild still works, godoc still works. R=rsc OCL=30096 CL=30102
Diffstat (limited to 'src/lib/io/pipe_test.go')
-rw-r--r--src/lib/io/pipe_test.go225
1 files changed, 0 insertions, 225 deletions
diff --git a/src/lib/io/pipe_test.go b/src/lib/io/pipe_test.go
deleted file mode 100644
index 277f44525..000000000
--- a/src/lib/io/pipe_test.go
+++ /dev/null
@@ -1,225 +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
-
-import (
- "fmt";
- "io";
- "os";
- "testing";
- "time";
-)
-
-func checkWrite(t *testing.T, w Writer, data []byte, c chan int) {
- n, err := w.Write(data);
- if err != nil {
- t.Errorf("write: %v", err);
- }
- if n != len(data) {
- t.Errorf("short write: %d != %d", n, len(data));
- }
- c <- 0;
-}
-
-// Test a single read/write pair.
-func TestPipe1(t *testing.T) {
- c := make(chan int);
- r, w := Pipe();
- var buf = make([]byte, 64);
- go checkWrite(t, w, StringBytes("hello, world"), c);
- n, err := r.Read(buf);
- if err != nil {
- t.Errorf("read: %v", err);
- }
- else if n != 12 || string(buf[0:12]) != "hello, world" {
- t.Errorf("bad read: got %q", buf[0:n]);
- }
- <-c;
- r.Close();
- w.Close();
-}
-
-func reader(t *testing.T, r Reader, c chan int) {
- var buf = make([]byte, 64);
- for {
- n, err := r.Read(buf);
- if err != nil {
- t.Errorf("read: %v", err);
- }
- c <- n;
- if n == 0 {
- break;
- }
- }
-}
-
-// Test a sequence of read/write pairs.
-func TestPipe2(t *testing.T) {
- c := make(chan int);
- r, w := Pipe();
- go reader(t, r, c);
- var buf = make([]byte, 64);
- for i := 0; i < 5; i++ {
- p := buf[0:5+i*10];
- n, err := w.Write(p);
- if n != len(p) {
- t.Errorf("wrote %d, got %d", len(p), n);
- }
- if err != nil {
- t.Errorf("write: %v", err);
- }
- nn := <-c;
- if nn != n {
- t.Errorf("wrote %d, read got %d", n, nn);
- }
- }
- w.Close();
- nn := <-c;
- if nn != 0 {
- t.Errorf("final read got %d", nn);
- }
-}
-
-// Test a large write that requires multiple reads to satisfy.
-func writer(w WriteCloser, buf []byte, c chan pipeReturn) {
- n, err := w.Write(buf);
- w.Close();
- c <- pipeReturn{n, err};
-}
-
-func TestPipe3(t *testing.T) {
- c := make(chan pipeReturn);
- r, w := Pipe();
- var wdat = make([]byte, 128);
- for i := 0; i < len(wdat); i++ {
- wdat[i] = byte(i);
- }
- go writer(w, wdat, c);
- var rdat = make([]byte, 1024);
- tot := 0;
- for n := 1; n <= 256; n *= 2 {
- nn, err := r.Read(rdat[tot:tot+n]);
- if err != nil {
- t.Fatalf("read: %v", err);
- }
-
- // only final two reads should be short - 1 byte, then 0
- expect := n;
- if n == 128 {
- expect = 1;
- } else if n == 256 {
- expect = 0;
- }
- if nn != expect {
- t.Fatalf("read %d, expected %d, got %d", n, expect, nn);
- }
- tot += nn;
- }
- pr := <-c;
- if pr.n != 128 || pr.err != nil {
- t.Fatalf("write 128: %d, %v", pr.n, pr.err);
- }
- if tot != 128 {
- t.Fatalf("total read %d != 128", tot);
- }
- for i := 0; i < 128; i++ {
- if rdat[i] != byte(i) {
- t.Fatalf("rdat[%d] = %d", i, rdat[i]);
- }
- }
-}
-
-// Test read after/before writer close.
-
-type closer interface {
- CloseWithError(os.Error) os.Error;
- Close() os.Error;
-}
-
-type pipeTest struct {
- async bool;
- err os.Error;
- closeWithError bool;
-}
-
-func (p pipeTest) String() string {
- return fmt.Sprintf("async=%v err=%v closeWithError=%v", p.async, p.err, p.closeWithError);
-}
-
-var pipeTests = []pipeTest {
- pipeTest{ true, nil, false },
- pipeTest{ true, nil, true },
- pipeTest{ true, io.ErrShortWrite, true },
- pipeTest{ false, nil, false },
- pipeTest{ false, nil, true },
- pipeTest{ false, io.ErrShortWrite, true },
-}
-
-func delayClose(t *testing.T, cl closer, ch chan int, tt pipeTest) {
- time.Sleep(1e6); // 1 ms
- var err os.Error;
- if tt.closeWithError {
- err = cl.CloseWithError(tt.err);
- } else {
- err = cl.Close();
- }
- if err != nil {
- t.Errorf("delayClose: %v", err);
- }
- ch <- 0;
-}
-
-func TestPipeReadClose(t *testing.T) {
- for _, tt := range pipeTests {
- c := make(chan int, 1);
- r, w := Pipe();
- if tt.async {
- go delayClose(t, w, c, tt);
- } else {
- delayClose(t, w, c, tt);
- }
- var buf = make([]byte, 64);
- n, err := r.Read(buf);
- <-c;
- if err != tt.err {
- t.Errorf("read from closed pipe: %v want %v", err, tt.err);
- }
- if n != 0 {
- t.Errorf("read on closed pipe returned %d", n);
- }
- if err = r.Close(); err != nil {
- t.Errorf("r.Close: %v", err);
- }
- }
-}
-
-// Test write after/before reader close.
-
-func TestPipeWriteClose(t *testing.T) {
- for _, tt := range pipeTests {
- c := make(chan int, 1);
- r, w := Pipe();
- if tt.async {
- go delayClose(t, r, c, tt);
- } else {
- delayClose(t, r, c, tt);
- }
- n, err := WriteString(w, "hello, world");
- <-c;
- expect := tt.err;
- if expect == nil {
- expect = os.EPIPE;
- }
- if err != expect {
- t.Errorf("write on closed pipe: %v want %v", err, expect);
- }
- if n != 0 {
- t.Errorf("write on closed pipe returned %d", n);
- }
- if err = w.Close(); err != nil {
- t.Errorf("w.Close: %v", err);
- }
- }
-}