Add versioned dependencies from godep

1 files changed, 261 insertions, 0 deletions

diff --git a/Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/snappy_test.go b/Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/snappy_test.go
new file mode 100644
index 000000000..7ba839244
--- /dev/null
+++ b/Godeps/_workspace/src/code.google.com/p/snappy-go/snappy/snappy_test.go
@@ -0,0 +1,261 @@
+// Copyright 2011 The Snappy-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 snappy
+
+import (
+	"bytes"
+	"flag"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"math/rand"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+var download = flag.Bool("download", false, "If true, download any missing files before running benchmarks")
+
+func roundtrip(b, ebuf, dbuf []byte) error {
+	e, err := Encode(ebuf, b)
+	if err != nil {
+		return fmt.Errorf("encoding error: %v", err)
+	}
+	d, err := Decode(dbuf, e)
+	if err != nil {
+		return fmt.Errorf("decoding error: %v", err)
+	}
+	if !bytes.Equal(b, d) {
+		return fmt.Errorf("roundtrip mismatch:\n\twant %v\n\tgot  %v", b, d)
+	}
+	return nil
+}
+
+func TestEmpty(t *testing.T) {
+	if err := roundtrip(nil, nil, nil); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestSmallCopy(t *testing.T) {
+	for _, ebuf := range [][]byte{nil, make([]byte, 20), make([]byte, 64)} {
+		for _, dbuf := range [][]byte{nil, make([]byte, 20), make([]byte, 64)} {
+			for i := 0; i < 32; i++ {
+				s := "aaaa" + strings.Repeat("b", i) + "aaaabbbb"
+				if err := roundtrip([]byte(s), ebuf, dbuf); err != nil {
+					t.Errorf("len(ebuf)=%d, len(dbuf)=%d, i=%d: %v", len(ebuf), len(dbuf), i, err)
+				}
+			}
+		}
+	}
+}
+
+func TestSmallRand(t *testing.T) {
+	rand.Seed(27354294)
+	for n := 1; n < 20000; n += 23 {
+		b := make([]byte, n)
+		for i, _ := range b {
+			b[i] = uint8(rand.Uint32())
+		}
+		if err := roundtrip(b, nil, nil); err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func TestSmallRegular(t *testing.T) {
+	for n := 1; n < 20000; n += 23 {
+		b := make([]byte, n)
+		for i, _ := range b {
+			b[i] = uint8(i%10 + 'a')
+		}
+		if err := roundtrip(b, nil, nil); err != nil {
+			t.Fatal(err)
+		}
+	}
+}
+
+func benchDecode(b *testing.B, src []byte) {
+	encoded, err := Encode(nil, src)
+	if err != nil {
+		b.Fatal(err)
+	}
+	// Bandwidth is in amount of uncompressed data.
+	b.SetBytes(int64(len(src)))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		Decode(src, encoded)
+	}
+}
+
+func benchEncode(b *testing.B, src []byte) {
+	// Bandwidth is in amount of uncompressed data.
+	b.SetBytes(int64(len(src)))
+	dst := make([]byte, MaxEncodedLen(len(src)))
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		Encode(dst, src)
+	}
+}
+
+func readFile(b *testing.B, filename string) []byte {
+	src, err := ioutil.ReadFile(filename)
+	if err != nil {
+		b.Fatalf("failed reading %s: %s", filename, err)
+	}
+	if len(src) == 0 {
+		b.Fatalf("%s has zero length", filename)
+	}
+	return src
+}
+
+// expand returns a slice of length n containing repeated copies of src.
+func expand(src []byte, n int) []byte {
+	dst := make([]byte, n)
+	for x := dst; len(x) > 0; {
+		i := copy(x, src)
+		x = x[i:]
+	}
+	return dst
+}
+
+func benchWords(b *testing.B, n int, decode bool) {
+	// Note: the file is OS-language dependent so the resulting values are not
+	// directly comparable for non-US-English OS installations.
+	data := expand(readFile(b, "/usr/share/dict/words"), n)
+	if decode {
+		benchDecode(b, data)
+	} else {
+		benchEncode(b, data)
+	}
+}
+
+func BenchmarkWordsDecode1e3(b *testing.B) { benchWords(b, 1e3, true) }
+func BenchmarkWordsDecode1e4(b *testing.B) { benchWords(b, 1e4, true) }
+func BenchmarkWordsDecode1e5(b *testing.B) { benchWords(b, 1e5, true) }
+func BenchmarkWordsDecode1e6(b *testing.B) { benchWords(b, 1e6, true) }
+func BenchmarkWordsEncode1e3(b *testing.B) { benchWords(b, 1e3, false) }
+func BenchmarkWordsEncode1e4(b *testing.B) { benchWords(b, 1e4, false) }
+func BenchmarkWordsEncode1e5(b *testing.B) { benchWords(b, 1e5, false) }
+func BenchmarkWordsEncode1e6(b *testing.B) { benchWords(b, 1e6, false) }
+
+// testFiles' values are copied directly from
+// https://code.google.com/p/snappy/source/browse/trunk/snappy_unittest.cc.
+// The label field is unused in snappy-go.
+var testFiles = []struct {
+	label    string
+	filename string
+}{
+	{"html", "html"},
+	{"urls", "urls.10K"},
+	{"jpg", "house.jpg"},
+	{"pdf", "mapreduce-osdi-1.pdf"},
+	{"html4", "html_x_4"},
+	{"cp", "cp.html"},
+	{"c", "fields.c"},
+	{"lsp", "grammar.lsp"},
+	{"xls", "kennedy.xls"},
+	{"txt1", "alice29.txt"},
+	{"txt2", "asyoulik.txt"},
+	{"txt3", "lcet10.txt"},
+	{"txt4", "plrabn12.txt"},
+	{"bin", "ptt5"},
+	{"sum", "sum"},
+	{"man", "xargs.1"},
+	{"pb", "geo.protodata"},
+	{"gaviota", "kppkn.gtb"},
+}
+
+// The test data files are present at this canonical URL.
+const baseURL = "https://snappy.googlecode.com/svn/trunk/testdata/"
+
+func downloadTestdata(basename string) (errRet error) {
+	filename := filepath.Join("testdata", basename)
+	f, err := os.Create(filename)
+	if err != nil {
+		return fmt.Errorf("failed to create %s: %s", filename, err)
+	}
+	defer f.Close()
+	defer func() {
+		if errRet != nil {
+			os.Remove(filename)
+		}
+	}()
+	resp, err := http.Get(baseURL + basename)
+	if err != nil {
+		return fmt.Errorf("failed to download %s: %s", baseURL+basename, err)
+	}
+	defer resp.Body.Close()
+	_, err = io.Copy(f, resp.Body)
+	if err != nil {
+		return fmt.Errorf("failed to write %s: %s", filename, err)
+	}
+	return nil
+}
+
+func benchFile(b *testing.B, n int, decode bool) {
+	filename := filepath.Join("testdata", testFiles[n].filename)
+	if stat, err := os.Stat(filename); err != nil || stat.Size() == 0 {
+		if !*download {
+			b.Fatal("test data not found; skipping benchmark without the -download flag")
+		}
+		// Download the official snappy C++ implementation reference test data
+		// files for benchmarking.
+		if err := os.Mkdir("testdata", 0777); err != nil && !os.IsExist(err) {
+			b.Fatalf("failed to create testdata: %s", err)
+		}
+		for _, tf := range testFiles {
+			if err := downloadTestdata(tf.filename); err != nil {
+				b.Fatalf("failed to download testdata: %s", err)
+			}
+		}
+	}
+	data := readFile(b, filename)
+	if decode {
+		benchDecode(b, data)
+	} else {
+		benchEncode(b, data)
+	}
+}
+
+// Naming convention is kept similar to what snappy's C++ implementation uses.
+func Benchmark_UFlat0(b *testing.B)  { benchFile(b, 0, true) }
+func Benchmark_UFlat1(b *testing.B)  { benchFile(b, 1, true) }
+func Benchmark_UFlat2(b *testing.B)  { benchFile(b, 2, true) }
+func Benchmark_UFlat3(b *testing.B)  { benchFile(b, 3, true) }
+func Benchmark_UFlat4(b *testing.B)  { benchFile(b, 4, true) }
+func Benchmark_UFlat5(b *testing.B)  { benchFile(b, 5, true) }
+func Benchmark_UFlat6(b *testing.B)  { benchFile(b, 6, true) }
+func Benchmark_UFlat7(b *testing.B)  { benchFile(b, 7, true) }
+func Benchmark_UFlat8(b *testing.B)  { benchFile(b, 8, true) }
+func Benchmark_UFlat9(b *testing.B)  { benchFile(b, 9, true) }
+func Benchmark_UFlat10(b *testing.B) { benchFile(b, 10, true) }
+func Benchmark_UFlat11(b *testing.B) { benchFile(b, 11, true) }
+func Benchmark_UFlat12(b *testing.B) { benchFile(b, 12, true) }
+func Benchmark_UFlat13(b *testing.B) { benchFile(b, 13, true) }
+func Benchmark_UFlat14(b *testing.B) { benchFile(b, 14, true) }
+func Benchmark_UFlat15(b *testing.B) { benchFile(b, 15, true) }
+func Benchmark_UFlat16(b *testing.B) { benchFile(b, 16, true) }
+func Benchmark_UFlat17(b *testing.B) { benchFile(b, 17, true) }
+func Benchmark_ZFlat0(b *testing.B)  { benchFile(b, 0, false) }
+func Benchmark_ZFlat1(b *testing.B)  { benchFile(b, 1, false) }
+func Benchmark_ZFlat2(b *testing.B)  { benchFile(b, 2, false) }
+func Benchmark_ZFlat3(b *testing.B)  { benchFile(b, 3, false) }
+func Benchmark_ZFlat4(b *testing.B)  { benchFile(b, 4, false) }
+func Benchmark_ZFlat5(b *testing.B)  { benchFile(b, 5, false) }
+func Benchmark_ZFlat6(b *testing.B)  { benchFile(b, 6, false) }
+func Benchmark_ZFlat7(b *testing.B)  { benchFile(b, 7, false) }
+func Benchmark_ZFlat8(b *testing.B)  { benchFile(b, 8, false) }
+func Benchmark_ZFlat9(b *testing.B)  { benchFile(b, 9, false) }
+func Benchmark_ZFlat10(b *testing.B) { benchFile(b, 10, false) }
+func Benchmark_ZFlat11(b *testing.B) { benchFile(b, 11, false) }
+func Benchmark_ZFlat12(b *testing.B) { benchFile(b, 12, false) }
+func Benchmark_ZFlat13(b *testing.B) { benchFile(b, 13, false) }
+func Benchmark_ZFlat14(b *testing.B) { benchFile(b, 14, false) }
+func Benchmark_ZFlat15(b *testing.B) { benchFile(b, 15, false) }
+func Benchmark_ZFlat16(b *testing.B) { benchFile(b, 16, false) }
+func Benchmark_ZFlat17(b *testing.B) { benchFile(b, 17, false) }