1 // Copyright 2010 The Go Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style 3 // license that can be found in the LICENSE file. 4 5 package rand 6 7 import ( 8 "bytes" 9 "compress/flate" 10 "io" 11 "testing" 12 ) 13 14 func TestRead(t *testing.T) { 15 var n int = 4e6 16 if testing.Short() { 17 n = 1e5 18 } 19 b := make([]byte, n) 20 n, err := io.ReadFull(Reader, b) 21 if n != len(b) || err != nil { 22 t.Fatalf("ReadFull(buf) = %d, %s", n, err) 23 } 24 25 var z bytes.Buffer 26 f, _ := flate.NewWriter(&z, 5) 27 f.Write(b) 28 f.Close() 29 if z.Len() < len(b)*99/100 { 30 t.Fatalf("Compressed %d -> %d", len(b), z.Len()) 31 } 32 } 33 34 func TestReadEmpty(t *testing.T) { 35 n, err := Reader.Read(make([]byte, 0)) 36 if n != 0 || err != nil { 37 t.Fatalf("Read(make([]byte, 0)) = %d, %v", n, err) 38 } 39 n, err = Reader.Read(nil) 40 if n != 0 || err != nil { 41 t.Fatalf("Read(nil) = %d, %v", n, err) 42 } 43 } 44
