Merge pull request #289 from jbenet/update-random-sharness-tests

Update random for test/

Godeps/Godeps.json

@@ -110,6 +110,10 @@
 			"Comment": "0.1.0-5-g1976046",
 			"Rev": "1976046c2b0db0b668791b3e541d76a38b7c1af7"
 		},
+		{
+			"ImportPath": "github.com/jbenet/go-random",
+			"Rev": "e4585173eb8c47eea36c3dbff22f26f3f94d3586"
+		},
 		{
 			"ImportPath": "github.com/kr/binarydist",
 			"Rev": "9955b0ab8708602d411341e55fffd7e0700f86bd"

Godeps/_workspace/src/github.com/jbenet/go-random/LICENSE

+The MIT License (MIT)
+
+Copyright (c) 2014 Juan Batiz-Benet
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

Godeps/_workspace/src/github.com/jbenet/go-random/README.md

+# go-random outputs randomness
+
+This is a unix util that outputs randomness.
+It is a thin wrapper around `crypto/rand`.
+It aims to be portable (though it may not yet be).
+
+### Install
+
+```sh
+go install github.com/jbenet/go-random/random
+```
+
+(The extra /random is there because go get is stupidly too proscriptive about
+package/repository names and I don't yet know how to change the default binary
+output name)
+
+### Usage:
+
+```
+> random
+Usage: random <int>
+Print <int> random bytes (from Go's crypto/rand)
+> random 6
+2q���#
+```
+
+### License
+
+MIT

Godeps/_workspace/src/github.com/jbenet/go-random/lib.go

+package random
+
+import (
+	"bytes"
+	randcrypto "crypto/rand"
+	"io"
+	randmath "math/rand"
+)
+
+func WriteRandomBytes(count int64, w io.Writer) error {
+	r := &io.LimitedReader{R: randcrypto.Reader, N: count}
+	_, err := io.Copy(w, r)
+	return err
+}
+
+func WritePseudoRandomBytes(count int64, w io.Writer, seed int64) error {
+	randmath.Seed(seed)
+
+	// Configurable buffer size
+	bufsize := int64(1024 * 1024 * 4)
+	b := make([]byte, bufsize)
+
+	for count > 0 {
+		if bufsize > count {
+			bufsize = count
+			b = b[:bufsize]
+		}
+
+		var n int64
+		for i := int64(0); i < bufsize; i++ {
+			n = randmath.Int63()
+			for j := 0; j < 8 && i < bufsize; j++ {
+				b[i] = byte(n & 0xff)
+				n >>= 8
+				i++
+			}
+		}
+		count = count - bufsize
+
+		r := bytes.NewReader(b)
+		_, err := io.Copy(w, r)
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}

Godeps/_workspace/src/github.com/jbenet/go-random/random/.gitignore

+random

Godeps/_workspace/src/github.com/jbenet/go-random/random/random.go

+package main
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+
+	random "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-random"
+)
+
+func main() {
+	l := len(os.Args)
+	if l != 2 && l != 3 {
+		usageError()
+	}
+
+	count, err := strconv.ParseInt(os.Args[1], 10, 64)
+	if err != nil {
+		usageError()
+	}
+
+	if l == 2 {
+		err = random.WriteRandomBytes(count, os.Stdout)
+	} else {
+		seed, err2 := strconv.ParseInt(os.Args[2], 10, 64)
+		if err2 != nil {
+			usageError()
+		}
+		err = random.WritePseudoRandomBytes(count, os.Stdout, seed)
+	}
+
+	if err != nil {
+		die(err)
+	}
+}
+
+func usageError() {
+	fmt.Fprintf(os.Stderr, "Usage: %s <count> [<seed>]\n", os.Args[0])
+	fmt.Fprintf(os.Stderr, "If <seed> is given, output <count> pseudo random bytes made from <seed> (from Go's math/rand)\n")
+	fmt.Fprintf(os.Stderr, "Otherwise, output <count> random bytes (from Go's crypto/rand)\n")
+	os.Exit(-1)
+}
+
+func die(err error) {
+	fmt.Fprintf(os.Stderr, "Error: %v", err)
+	os.Exit(-1)
+}

Godeps/_workspace/src/github.com/jbenet/go-random/random_test.go

+package random
+
+import (
+	"bytes"
+	"io/ioutil"
+	"testing"
+	"time"
+)
+
+func TestPseudoRandom(t *testing.T) {
+
+	var testCases = []int{
+		1024,
+		187654,
+		1048576,
+		4932132,
+	}
+
+	for _, size := range testCases {
+		var buf bytes.Buffer
+		err := WritePseudoRandomBytes(int64(size), &buf, int64(time.Now().UnixNano()))
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if buf.Len() != size {
+			t.Fatal("buffer not of the right size: %d != %d", buf.Len(), size)
+		}
+	}
+}
+
+func TestPseudoRandomSeed(t *testing.T) {
+
+	var first []byte
+	var size = int64(1024 * 4)
+	seed := time.Now().UnixNano()
+
+	for i := 0; i < 100; i++ {
+		var bufs bytes.Buffer
+		var bufr bytes.Buffer
+
+		if err := WritePseudoRandomBytes(size, &bufs, seed); err != nil {
+			t.Fatal(err)
+		}
+
+		if err := WritePseudoRandomBytes(size, &bufr, time.Now().UnixNano()); err != nil {
+			t.Fatal(err)
+		}
+
+		if bufs.Len() != int(size) {
+			t.Fatal("buffer not of the right size: %d != %d", bufs.Len(), size)
+		}
+		if bufr.Len() != int(size) {
+			t.Fatal("buffer not of the right size: %d != %d", bufr.Len(), size)
+		}
+
+		if first == nil {
+			first = bufs.Bytes()
+		} else if !bytes.Equal(first, bufs.Bytes()) {
+			t.Fatal("seeded constructed different bytes")
+		}
+
+		if bytes.Equal(first, bufr.Bytes()) {
+			t.Fatal("non-seeded constructed same bytes")
+		}
+	}
+}
+
+func TestCryptoRandom(t *testing.T) {
+
+	var testCases = []int{
+		1024,
+		187654,
+		1048576,
+	}
+
+	for _, size := range testCases {
+		var buf bytes.Buffer
+		err := WriteRandomBytes(int64(size), &buf)
+		if err != nil {
+			t.Fatal(err)
+		}
+
+		if buf.Len() != size {
+			t.Fatal("buffer not of the right size: %d != %d", buf.Len(), size)
+		}
+	}
+}
+
+func BenchmarkCryptoRandom(b *testing.B) {
+	WriteRandomBytes(int64(b.N), ioutil.Discard)
+}
+
+func BenchmarkPseudoRandom(b *testing.B) {
+	WritePseudoRandomBytes(int64(b.N), ioutil.Discard, time.Now().UnixNano())
+}

test/.gitignore

-sharness/
+lib/sharness/
+bin/ipfs
+bin/random
 test-results/
 trash directory.*.sh/

test/Makefile

@@ -5,7 +5,8 @@
 #
 
 T = $(sort $(wildcard t[0-9][0-9][0-9][0-9]-*.sh))
-SHARNESS = sharness/sharness.sh
+SHARNESS = lib/sharness/sharness.sh
+RANDOMSRC = Godeps/_workspace/src/github.com/jbenet/go-random/random
 
 all: clean deps $(T) aggregate
 
@@ -19,24 +20,24 @@ $(T):
 
 aggregate:
 	@echo "*** $@ ***"
-	./test-aggregate-results.sh
+	lib/test-aggregate-results.sh
 
 deps: $(SHARNESS) ipfs random
 
 $(SHARNESS):
 	@echo "*** installing $@ ***"
-	./install-sharness.sh
+	lib/install-sharness.sh
 
 # phony to ensure we re-build it every time we run tests
 ipfs:
 	@echo "*** installing $@ ***"
+	mkdir -p bin
 	cd ../cmd/ipfs && go build
-	cp ../cmd/ipfs/ipfs ipfs
+	cp ../cmd/ipfs/ipfs bin/ipfs
 
 random:
 	@echo "*** installing $@ ***"
-	go get github.com/jbenet/go-random/random
-	go install github.com/jbenet/go-random/random
-	cp `which random` random
+	mkdir -p bin
+	go build -o bin/random ../$(RANDOMSRC)
 
 .PHONY: all clean $(T) aggregate ipfs random

test/install-sharness.sh → test/lib/install-sharness.sh

@@ -8,6 +8,7 @@
 # settings
 version=50229a79ba22b2f13ccd82451d86570fecbd194c
 urlprefix=https://raw.githubusercontent.com/mlafeldt/sharness/$version
+installpath=lib/sharness
 
 # files to download
 sfile=sharness.sh
@@ -39,8 +40,8 @@ verified_download() {
   return 0
 }
 
-mkdir -p sharness || die "Could not create 'sharness' directory"
-cd sharness || die "Could not cd into 'sharness' directory"
+mkdir -p $installpath || die "Could not create 'sharness' directory"
+cd $installpath || die "Could not cd into 'sharness' directory"
 
 verified_download "$sfile" "$shash"; sok=$?
 verified_download "$afile" "$ahash"; aok=$?

test/lib/random-dep.go

+// package randomdep is here to introduce a dependency in random for godep to
+// function properly. this way we can keep go-random vendored and not
+// accidentally break our tests when we change it.
+package randomdep
+
+import (
+	_ "github.com/jbenet/go-ipfs/Godeps/_workspace/src/github.com/jbenet/go-random"
+)

test/test-aggregate-results.sh → test/lib/test-aggregate-results.sh

@@ -6,7 +6,7 @@
 # MIT Licensed; see the LICENSE file in this repository.
 #
 
-SHARNESS_AGGREGATE="sharness/aggregate-results.sh"
+SHARNESS_AGGREGATE="lib/sharness/aggregate-results.sh"
 
 test -f "$SHARNESS_AGGREGATE" || {
 	echo >&2 "Cannot find: $SHARNESS_AGGREGATE"

test/test-lib.sh → test/lib/test-lib.sh

@@ -9,16 +9,16 @@
 # use the ipfs tool to test against
 
 # add current directory to path, for ipfs tool.
-PATH=$(pwd):${PATH}
+PATH=$(pwd)/bin:${PATH}
 
 # assert the `ipfs` we're using is the right one.
-if test `which ipfs` != $(pwd)/ipfs; then
+if test `which ipfs` != $(pwd)/bin/ipfs; then
 	echo >&2 "Cannot find the tests' local ipfs tool."
 	echo >&2 "Please check test and ipfs tool installation."
 	exit 1
 fi
 
-SHARNESS_LIB="sharness/sharness.sh"
+SHARNESS_LIB="lib/sharness/sharness.sh"
 
 . "$SHARNESS_LIB" || {
 	echo >&2 "Cannot source: $SHARNESS_LIB"

test/t0010-basic-commands.sh

@@ -6,7 +6,7 @@
 
 test_description="Test installation and some basic commands"
 
-. ./test-lib.sh
+. lib/test-lib.sh
 
 test_expect_success "current dir is writable" '
 	echo "It works!" >test.txt

test/t0020-init.sh

@@ -6,7 +6,7 @@
 
 test_description="Test init command"
 
-. ./test-lib.sh
+. lib/test-lib.sh
 
 test_expect_success "ipfs init succeeds" '
 	export IPFS_DIR="$(pwd)/.go-ipfs" &&

test/t0030-mount.sh

@@ -6,7 +6,7 @@
 
 test_description="Test mount command"
 
-. ./test-lib.sh
+. lib/test-lib.sh
 
 # if in travis CI, dont test mount (no fuse)
 if ! test_have_prereq FUSE; then

test/t0040-add-and-cat.sh

@@ -6,7 +6,7 @@
 
 test_description="Test add and cat commands"
 
-. ./test-lib.sh
+. lib/test-lib.sh
 
 test_launch_ipfs_mount
 
@@ -47,7 +47,7 @@ test_expect_success "generate 100MB file using go-random" '
 '
 
 test_expect_success "sha1 of the file looks ok" '
-	echo "54dc0dbbc353b2ffb745285793f89af0c9d98449  mountdir/bigfile" >sha1_expected &&
+	echo "ae986dd159e4f014aee7409cdc2001ea74f618d1  mountdir/bigfile" >sha1_expected &&
 	shasum mountdir/bigfile >sha1_actual &&
 	test_cmp sha1_expected sha1_actual
 '
@@ -57,7 +57,7 @@ test_expect_success "ipfs add bigfile succeeds" '
 '
 
 test_expect_success "ipfs add bigfile output looks good" '
-	HASH="QmeZVkWkDu4W1vxWdDgUbqKYba9K3u45hJEdPA4Wr2sHZz" &&
+	HASH="QmVm3Da371opC3hpsCLuYSozdyM6wRvu9UoUqoyW8u4LRq" &&
 	echo "added $HASH $(pwd)/mountdir/bigfile" >expected &&
 	test_cmp expected actual
 '
@@ -67,7 +67,7 @@ test_expect_success "ipfs cat succeeds" '
 '
 
 test_expect_success "ipfs cat output looks good" '
-	echo "54dc0dbbc353b2ffb745285793f89af0c9d98449  -" >sha1_expected &&
+	echo "ae986dd159e4f014aee7409cdc2001ea74f618d1  -" >sha1_expected &&
 	test_cmp sha1_expected sha1_actual
 '